gbadisplay: add simple driver for the GameBoy Advance display

This only implements the 15 bits per pixel mode, not any of the other possible display modes. This matches conventional SPI displays most closely. Future additions might add more display modes. Normally I'd argue interfacing with chip/board specific hardware should be done in the machine package using a generic interface, but the GBA is kind of special and I don't want the machine package to depend on the tinygo.org/x/drivers/pixel package.
2026-07-26 18:48:41 +00:00 · 2023-11-23 22:39:33 +01:00
346 changed files with 17849 additions and 32867 deletions
@@ -1,3 +0,0 @@
-# These are supported funding model platforms
-
-open_collective: tinygo
@@ -11,12 +11,13 @@ on:
 jobs:
  build:
    runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/tinygo-org/tinygo:latest
-      options: --user root
+    container: ghcr.io/tinygo-org/tinygo-dev:latest
    steps:
+      - name: Work around CVE-2022-24765
+        # We're not on a multi-user machine, so this is safe.
+        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
      - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v3
      - name: TinyGo version check
        run: tinygo version
      - name: Enforce Go Formatted Code
@@ -24,6 +25,4 @@ jobs:
      - name: Run unit tests
        run: make unit-test
      - name: Run build and smoke tests
-        run: |
-          go env -w GOFLAGS=-buildvcs=false
-          make smoke-test
+        run: make smoke-test
@@ -1,336 +1,3 @@
-0.35.0
---
- **new devices**
-    - **unoqmatrix**
-        - LED matrix on the Arduino Uno Q
-    - **waveshare-epd (ssd1680)**
-        - Add driver for Waveshare 2.9 inch v2 e-paper display
-
- **enhancements**
-    - **gps**
-        - add UBX config command support (#831)
-        - improve implementation for UBX config commands
-        - revamp validSentence() to avoid heap allocation for errors
-        - export some errors for checking/suppression from client
-        - improvements and corrections for config commands
-    - **lora**
-        - fill out more constants for lora device
-    - **mcp2515**
-        - add support for extended CAN IDs (#857)
-    - **si5351**
-        - complete refactor for more complete interface
-    - **st7735**
-        - remove dependency on the machine package
-    - **sx127x**
-        - add functions used for FSK radio communication
-    - **ws2812**
-        - add brightness control
-        - add PIO support for RP2040/RP2350
-
- **bugfixes**
-    - **st7789**
-        - fix scroll on rotated displays
-        - fix driver when rotated 90º
-    - **ws2812**
-        - fix brightness control issues (#858)
-
-
-0.34.0
---
- **core**
-    - add regmap package to facilitate heapless driver development
-    - PinInput+PinOutput HAL (#753, reloaded) (#795)
-    - Add Device8I2C/SPI types and their logic (#801)
-
- **new devices**
-    - **bno8x**
-        - Add support for CEVA BNO08x 9DoF sensor (#809)
-    - **hineyhsc**
-        - Add Honeywell HSC TruStability SPI+I2C pressure sensor driver (#799)
-    - **p25q16h**
-        - added support for P25Q16H flash chip for xiao-ble target
-    - **si5351**
-        - add support for si5351 (#810)
-    - **w25q80dv**
-        - added support for W25Q80DV flash chip for xiao-ble target
-    - **w5500**
-        - initial version the driver (#788)
-
- **enhancements**
-    - **ds3231**
-        - DS3231 Alarm features (#805)
-    - **general**
-        - add simplest driver ports
-    - **lis3dh**
-        - add Update and Acceleration calls
-        - use correct error handling and make configurable
-    - **lsm9ds1**
-        - avoid unnecessary heap allocations
-    - **pixel**
-        - add Grayscale2bit color (#817)
-    - **scd4x**
-        - add support for SCD41 single-shot measurements
-        - remove dead code
-        - update package to use standard methods
-    - **si5351**
-        - add many missing functions needed for convenient use.
-    - **ssd1xxx**
-        - break dependency from machine package (#812)
-    - **test**
-        - Add TestImageRGB888 and TestImageRGB555
-
- **bugfixes**
-    - **quadrature**
-        - add RP2350 to quadrature_interrupt.go
-    - **pixel**
-        - correct logic error in image size checks in pixel's tests
-        - correct logic error in image size checks in pixel's tests (Monochrome)
-        - correct RGB555 to RGBA conversion logic
-
-
-0.33.0
---
- **new devices**
-    - **ens160**
-        - Add ens160 i2c driver
-    - **lsm303dlhc**
-        - added support for LSM303DLHC e-Compass; (#783)
-    - **seesaw**
-        - add support for Adafruit Seesaw encoders
-
- **enhancements**
-    - **ws2812**
-        - add RP2350 support
-    - **ssd1306**
-        - avoid unnecessary heap allocations (#767)
-    - **gps**
-        - allow gps init with address
-    - **lsm6ds3tr**
-        - avoid unnecessary heap allocations (#766)
-
- **bugfixes**
-    - **gps**
-        - Fix gps time calculation (#785)
-
-
-0.32.0
---
- **enhancements**
-    - **bmp280**
-        - remove alloc on read sensor data
-    - **ws2812**
-        - add 200MHz support for the Cortex-M0/rp2040
-
- **bugfixes**
-    - **ssd1306**
-        - remove time.Sleep from SSD1306 SPI transfer code
-    - **tmc2209**
-        - tmc2209 bug fixes (#755)
-
- **docs**
-    - **contributing**
-        - add driver design pointer to CONTRIBUTING.md
-
-
-0.31.0
---
---
- **enhancements**
-    - **spi**
-        - update all SPI usage to use either *machine.SPI or drivers.SPI
-
-
-0.30.0
---
- **new devices**
-    - **comboat**
-        - Add wifi driver comboat for Elecrow W5 rp2040 and rp2350 devices (#741)
-    - **max6675**
-        - Add MAX6675 device
-    - **TMC2209**
-        - Added TMC2209 support (#727)
-    - **TMC5160**
-        - Added TMC5160 support (#725)
-    - **sharpmem**
-        - Add sharpmem (#724)
-
- **enhancements**
-    - **net**
-        - move to latest golang.org/x/net v0.33.0 (#732)
-    - **microphone**
-        - update microphone driver to use latest i2s interface
-
- **bugfixes**
-    - **net**
-        - fix typo in DHCP error message
-    - **aht20**
-        - Fixed bug in aht20 driver
-    - **hub75**
-        - fix data buffering
-
-
-0.29.0
---
- **new devices**
-    - **epd1in54**
-        - Waveshare 1.54inch B/W e-Paper display (#704)
-    - **touch**
-        - add capacitive touch sensing on normal GPIO pins
-    - **INA219**
-        - I2C INA219 driver (#705)
-    - **pcf8591**
-        - add ADC only implementation for I2C ADC/DAC (#690)
-
- **enhancements**
-    - **pixel**
-        - add NewImageFromBytes() function to allow creating image from existing slice
-    - **servo**
-        - Add function `SetAngleWithMicroseconds` (#695)
-    - **onewire**
-        - onewire improvements
-    - **ssd1306**
-        - Add function `SetFlip` and `GetFlip` (#702)
-    - **uc8151**
-        - add FillRectangle() and SetScroll() functions to satisfy tinyterm.Displayer interface
-    - **ssd1306**
-        - add FillRectangle() and SetScroll() functions to satisfy tinyterm.Displayer interface
-
- **bugfixes**
-    - **pixel**
-        - fix Monochrome setPixel
-
- **docs**
-    - **readme**
-        - discuss need to change variables in examples
-    - **sponsor**
-        - Add sponsor button to key repositories
-
-
-0.28.0
---
- **new devices**
-    - **epd2in66b**
-        - Waveshare 2.66inch E-Paper Display Module (B) for Raspberry Pi Pico (#673)
-    - **mcp9808**
-        - Add driver for MCP9808 i2c temperature sensor (#676)
-
- **enhancements**
-    - **encoders**
-        - add atsamd21, atsamd51, atsame5x
-    - **pixel**
-        - add support for Monochrome types such as the SSD1306 display
-    - **rtl8720dn**
-        - implement ConnectModeAP
-    - **servo**
-        - add function SetAngle() to simplify API for most common use case
-    - **ssd1306**
-        - add DrawBitmap() function to complete Displayer interface
-        - add rotation functions for Displayer interface
-        - add Sleep() function for Displayer interface
-    - **uc8151**
-        - improvements to speed and also add flicker-free mode based on @antirez code example
-        - update to support all functions needed by tinygl and board package Displayer interface
-    - **wifinina**
-        - implement ConnectModeAP
-
- **bugfixes**
-    - **ft6336**
-        - ignore bogus touch events
-    - **pixel**
-        - fix Image[Monochrome].Set for larger images
-    - **uc8151**
-        - correct DrawBitmap() also refactor SendCommand() and SendData() for clarity
-    - **ws2812**
-        - Fix typo and move initialization of neo to init()
-
- **examples**
-    - **ws2812**
-        - Simplify examples/ws2812
-
-
-0.27.0
---
- **core**
-    - prepare for CGo changes in TinyGo
-
- **new devices**
-    - **adafruit4650**
-        - support for Adafruit 4650 feather OLED
-    - **net**
-        - new networking support based on tinygo net package
-    - **pixel**
-        - add package for efficiently working with raw pixel buffers
-    - **rotary**
-        - Adding driver for rotary encoder support
-    - **seesaw**
-        - Adding support for Adafruit Seesaw platform
-    - **sgp30**
-        - add SGP30 air quality sensor
-    - **sk6812**
-        - added support for SK6812 to WS2812 device (#610)
-
- **enhancements**
-    - **epd2in13**
-        - add Sleep method like other displays
-        - unify rotation configuration with other displays
-        - use better black/white approximation
-    - **ili9341**
-        - add DrawBitmap method
-    - **lora/lorawan**
-        - LoRa WAN US915 Support
-        - LoRa WAN add setter functions
-        - refactor shared functionality for channels/regions
-    - **mcp2515**
-        - Add more line speeds to mcp2515.go (#626)
-    - **rtl8720dn**
-        - use drivers package version as the driver version
-    - **ssd1306**
-        - improvements needed for Thumby SPI display
-    - **st7735**
-        - make the display generic over RGB565 and RGB444
-    - **st7789**
-        - add DrawBitmap method
-        - make the display generic over RGB565 and RGB444
-    - **wifinina**
-        - add ResetIsHigh cfg switch for MKR 1010 (copied from #561)
-        - maintenence. Also see PR #4085 in the main TinyGo repo
-        - use drivers package version as the driver version
-
- **bugfixes**
-    - **adxl345**
-        - Use int16 for ADXL345 readings (#656)
-    - **at24cx**
-        - fixed the description of the device struct
-    - **rtl8720dn**
-        - allow connecting to open wifi access points
-        - fix check for bad Wifi connect
-    - **sh1106**
-        - fix I2C interface and add smoketest
-        - fixed the description of the device struct
-    - **wifinina**
-        - add 'unknown failure' reason code for AP connect
-        - fix concurrency issues with multiple sockets
-        - fix wifinina UDP send
- 
- **examples**
-    - **ds3231**
-        - fix the description in the example
-    - **lorawan**
-        - add missing functions for simulated interface
-        - modify atcmd and basic demo to support choosing any one of the supported regions at compile time by using ldflags
-    - **net**
-        - all networking examples now using netdev and netlink.
-
- **build**
-    - **all**
-        - fix broken testrunner
-        - migrated legacy I2C
-        - add natiu package for tests
-    - **smoketest**
-        - add stack-size param for net tests.
-        - allow stack-size flag as it is needed for net examples
-
-
 0.26.0
 ---
 - **core**
@@ -8,9 +8,6 @@ We would like your help to make this project better, so we appreciate any contri

 We'd love to get your feedback on getting started with TinyGo. Run into any difficulty, confusion, or anything else? You are not alone. We want to know about your experience, so we can help the next people. Please open a Github issue with your questions, or you can also get in touch directly with us on our Slack channel at [https://gophers.slack.com/messages/CDJD3SUP6](https://gophers.slack.com/messages/CDJD3SUP6).

-### Driver design
-Before porting or writing a driver from scratch please read **[Driver Design for TinyGo](https://tinygo.org/docs/guides/driver-design)**.
-
 ### One of the TinyGo drivers is not working as you expect

 Please open a Github issue with your problem, and we will be happy to assist.
@@ -1,4 +1,4 @@
-Copyright The TinyGo Authors. All rights reserved.
+Copyright (c) 2018-2023 The TinyGo Authors. All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -19,24 +19,10 @@ rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst
 # Recursively find all *_test.go files from cwd & reduce to unique dir names
 HAS_TESTS = $(sort $(dir $(call rwildcard,,*_test.go)))
 # Exclude anything we explicitly don't want to test for whatever reason
-EXCLUDE_TESTS = image waveshare-epd/epd2in66b
+EXCLUDE_TESTS = image
 TESTS = $(filter-out $(addsuffix /%,$(EXCLUDE_TESTS)),$(HAS_TESTS))

 unit-test:
 	@go test -v $(addprefix ./,$(TESTS))

 test: clean fmt-check unit-test smoke-test
-
-EXCLUDE_DIRS = build cmd examples internal lora ndir netdev netlink tester
-
-drivers-count:
-	@root_count=$$(find . -mindepth 1 -maxdepth 1 -type d | grep -vE '^\./($(subst $(space),|,$(EXCLUDE_DIRS)))$$' | wc -l); \
-	epd_count=$$(find ./waveshare-epd -mindepth 1 -maxdepth 1 -type d 2>/dev/null | wc -l); \
-	total=$$((root_count + epd_count)); \
-	echo "Total drivers: $$total (root: $$root_count, waveshare-epd: $$epd_count)"
-
-drivers-list:
-	@{ \
-		find . -mindepth 1 -maxdepth 1 -type d | grep -vE '^\./($(subst $(space),|,$(EXCLUDE_DIRS)))$$'; \
-		if [ -d ./waveshare-epd ]; then find ./waveshare-epd -mindepth 1 -maxdepth 1 -type d; fi; \
-	} | sed 's|^\./||' | sort
@@ -1,233 +0,0 @@
-### Table of Contents
-
- ["net" Package](#net-package)
- [Using "net" Package](#using-net-package)
- [Using "net/http" Package](#using-nethttp-package)
- [Using "crypto/tls" Package](#using-cryptotls-package)
- [Using Sockets](#using-sockets)
-
-## "net" Package
-
-TinyGo's "net" package is ported from Go.  The port offers a subset of Go's
-"net" package.  The subset maintains Go 1 compatiblity guarantee.  A Go
-application that uses "net" will most-likey just work on TinyGo if the usage is
-within the subset offered.  (There may be external constraints such as limited
-SRAM on some targets that may limit full "net" functionality).
-
-Continue below for details on using "net" and "net/http" packages.
-
-See src/net/READMD.md in the TinyGo repo for more details on maintaining
-TinyGo's "net" package.
-
-## Using "net" Package
-
-Ideally, TinyGo's "net" package would be Go's "net" package and applications
-using "net" would just work, as-is.  TinyGo's net package is a partial port of
-Go's net package, so some things may not work because they have not been
-ported.
-
-There are a few features excluded during the porting process, in particular:
-
- No IPv6 support
- No DualStack support
-
-Run ```go doc -all ./src/net``` in TinyGo repo to see full listing of what has
-been ported.  Here is a list of things known to work.  You can find examples
-of these at [examples/net](examples/net/).
-
-### What is Known to Work
-
-(These are all IPv4 only).
-
- TCP client and server
- UDP client
- TLS client
- HTTP client and server
- HTTPS client
- NTP client (UDP)
- MQTT client (paho & natiu)
- WebSocket client and server
-
-Multiple sockets can be opened in a single app.  For example, the app could run
-as an http server listen on port :80 and also use NTP to get the current time
-or send something over MQTT.  There is a practical limit to the number of
-active sockets per app, around 8 or 10, so don't go crazy.
-
-Applications using Go's net package will need a few setup steps to work with
-TinyGo's net package.  The steps are required before using "net".
-
-### Step 1: Probe to Load Network Driver
-
-Call Probe() to load the correct network driver for your target.  Probe()
-allows the app to work on multiple targets.
-
-```go
-package main
-
-import (
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-func main() {
-
-	// load network driver for target
-	link, dev := probe.Probe()
-
-	...	
-}
-```
-
-Probe() will load the driver with default configuration for the target.  For
-custom configuration, the app can open code Probe() for the target
-requirements.
-
-Probe() returns a [Netlinker](netlink/README.md) and a
-[Netdever](netdev/README.md), interfaces implemented by the network driver.
-Next, we'll use the Netlinker interface to connect the target to an IP network.
-
-### Step 2: Connect to an IP Network
-
-Before the net package is fully functional, we need to connect the target to an
-IP network.
-
-```go
-package main
-
-import (
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-func main() {
-
-	// load network driver for target
-	link, _ := probe.Probe()
-
-	// Connect target to IP network
-	link.NetConnect(&netlink.ConnectParams{
-		Ssid:       "my SSID",
-		Passphrase: "my passphrase",
-	})
-
-	// OK to use "net" from here on
-	...	
-}
-```
-
-Optionally, get notified of IP network connects and disconnects:
-
-```go
-	link.Notify(func(e netlink.Event) {
-		switch e {
-		case netlink.EventNetUp:   println("Network UP")
-		case netlink.EventNetDown: println("Network DOWN")
-	})
-```
-
-Here is an example of an http server listening on port :8080:
-
-```go
-package main
-
-import (
-	"fmt"
-	"net/http"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-func HelloServer(w http.ResponseWriter, r *http.Request) {
-	fmt.Fprintf(w, "Hello, %s!", r.URL.Path[1:])
-}
-
-func main() {
-
-	// load network driver for target
-	link, _ := probe.Probe()
-
-	// Connect target to IP network
-	link.NetConnect(&netlink.ConnectParams{
-		Ssid:       "my SSID",
-		Passphrase: "my passphrase",
-	})
-
-	// Serve it up
-	http.HandleFunc("/", HelloServer)
-	http.ListenAndServe(":8080", nil)
-}
-```
-
-## Using "net/http" Package
-
-TinyGo's net/http package is a partial port of Go's net/http package, providing
-a subset of the full net/http package.  There are a few features excluded
-during the porting process, in particular:
-
- No HTTP/2 support
- No TLS support for HTTP servers (no https servers)
- HTTP client request can't be reused
-
-HTTP client methods (http.Get, http.Head, http.Post, and http.PostForm) are
-functional.  Dial clients support both HTTP and HTTPS URLs.
-
-HTTP server methods and objects are mostly ported, but for HTTP only; HTTPS
-servers are not supported.
-
-HTTP request and response handling code is mostly ported, so most the intricacy
-of parsing and writing headers is handled as in the full net/http package.
-
-Run ```go doc -all ./src/net/http``` in TinyGo repo to see full listing.
-
-## Using "crypto/tls" Package
-
-TinyGo's TLS support (crypto/tls) relies on hardware offload of the TLS
-protocol.  This is different from Go's crypto/tls package which handles the TLS
-protocol in software.
-
-TinyGo's TLS support is only available for client applications.  You can
-http.Get() to an https:// address, but you cannot http.ListenAndServeTLS() an
-https server.
-
-The offloading hardware has pre-defined TLS certificates built-in.
-
-## Using Sockets
-
-The Netdever interface is a BSD socket-like interface so an application can make direct
-socket calls, bypassing the "net" package for the lowest overhead.
-
-Here is a simple TCP client application using direct sockets:
-
-```go
-package main
-
-import (
-	"net"  // only need to parse IP address
-
-	"tinygo.org/x/drivers/netdev"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-func main() {
-
-	// load network driver for target
-	link, dev := probe.Probe()
-
-	// Connect target to IP network
-	link.NetConnect(&netlink.ConnectParams{
-		Ssid:       "my SSID",
-		Passphrase: "my passphrase",
-	})
-
-	// omit error handling
-
-	sock, _ := dev.Socket(netdev.AF_INET, netdev.SOCK_STREAM, netdev.IPPROTO_TCP)
-
-        dev.Connect(sock, "", net.ParseIP("10.0.0.100"), 8080)
-	dev.Send(sock, []bytes("hello"), 0, 0)
-
-	dev.Close(sock)
-	link.NetDisconnect()
-}
-```
@@ -3,14 +3,11 @@
 [![PkgGoDev](https://pkg.go.dev/badge/tinygo.org/x/drivers)](https://pkg.go.dev/tinygo.org/x/drivers) [![Build](https://github.com/tinygo-org/drivers/actions/workflows/build.yml/badge.svg?branch=dev)](https://github.com/tinygo-org/drivers/actions/workflows/build.yml)


-This package provides a collection of over 140 different hardware drivers for devices such as sensors, displays, wireless adaptors, and actuators, that can be used together with [TinyGo](https://tinygo.org).
+This package provides a collection of 101 different hardware drivers for devices such as sensors and displays that can be used together with [TinyGo](https://tinygo.org).

 For the complete list, please see:
 https://tinygo.org/docs/reference/devices/

-> [!IMPORTANT]
-> You can help TinyGo with a financial contribution using OpenCollective. Please see https://opencollective.com/tinygo for more information. Thank you!
-
 ## Installing

 ```shell
@@ -19,7 +16,7 @@ go get tinygo.org/x/drivers

 ## How to use

-Here is an example in TinyGo that uses the BMP180 digital barometer.  This example should work on any board that supports I2C:
+Here is an example in TinyGo that uses the BMP180 digital barometer:

 ```go
 package main
@@ -56,28 +53,6 @@ func main() {
 }
 ```

-## Examples Using GPIO or SPI 
-
-If compiling these examples directly you are likely to need to make minor changes to the defined variables to map the pins for the board you are using.  For example, this block in main.go:
-
-```golang
-var (
-        spi   = machine.SPI0
-        csPin = machine.D5
-)
-```
-
-It might not be obvious, but you need to change these to match how you wired your specific board.  Constants are [defined for each supported microcontroller](https://tinygo.org/docs/reference/microcontrollers/).  
-
-For example, to change the definitions for use on a Raspberry Pi Pico using typical wiring, you might need to do this:
-
-```golang
-var (
-        spi   = machine.SPI0
-        csPin = machine.GP17
-)
-```
-
 ## Contributing

 Your contributions are welcome!
@@ -95,16 +95,16 @@ func (d *Device) Restart() {
 func (d *Device) ReadAcceleration() (x int32, y int32, z int32, err error) {
 	rx, ry, rz := d.ReadRawAcceleration()

-	x = int32(d.dataFormat.convertToIS(rx))
-	y = int32(d.dataFormat.convertToIS(ry))
-	z = int32(d.dataFormat.convertToIS(rz))
+	x = d.dataFormat.convertToIS(rx)
+	y = d.dataFormat.convertToIS(ry)
+	z = d.dataFormat.convertToIS(rz)

 	return
 }

 // ReadRawAcceleration reads the sensor values and returns the raw x, y and z axis
 // from the adxl345.
-func (d *Device) ReadRawAcceleration() (x int16, y int16, z int16) {
+func (d *Device) ReadRawAcceleration() (x int32, y int32, z int32) {
 	data := []byte{0, 0, 0, 0, 0, 0}
 	legacy.ReadRegister(d.bus, uint8(d.Address), REG_DATAX0, data)

@@ -140,7 +140,7 @@ func (d *Device) SetRange(sensorRange Range) bool {
 }

 // convertToIS adjusts the raw values from the adxl345 with the range configuration
-func (d *dataFormat) convertToIS(rawValue int16) int16 {
+func (d *dataFormat) convertToIS(rawValue int32) int32 {
 	switch d.sensorRange {
 	case RANGE_2G:
 		return rawValue * 4 // rawValue * 2 * 1000 / 512
@@ -190,6 +190,6 @@ func (b *bwRate) toByte() (bits uint8) {
 }

 // readInt converts two bytes to int16
-func readIntLE(msb byte, lsb byte) int16 {
-	return int16(uint16(msb) | uint16(lsb)<<8)
+func readIntLE(msb byte, lsb byte) int32 {
+	return int32(uint16(msb) | uint16(lsb)<<8)
 }
@@ -29,7 +29,7 @@ func New(bus drivers.I2C) Device {
 func (d *Device) Configure() {
 	// Check initialization state
 	status := d.Status()
-	if status&STATUS_CALIBRATED == 1 {
+	if status&0x08 == 1 {
 		// Device is initialized
 		return
 	}
@@ -69,7 +69,7 @@ func (d *Device) Read() error {
 		}

 		// If measurement complete, store values
-		if data[0]&STATUS_CALIBRATED != 0 && data[0]&STATUS_BUSY == 0 {
+		if data[0]&0x04 != 0 && data[0]&0x80 == 0 {
 			d.humidity = uint32(data[1])<<12 | uint32(data[2])<<4 | uint32(data[3])>>4
 			d.temp = (uint32(data[3])&0xF)<<16 | uint32(data[4])<<8 | uint32(data[5])
 			return nil
@@ -5,10 +5,9 @@ package apa102 // import "tinygo.org/x/drivers/apa102"

 import (
 	"image/color"
+	"machine"

 	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/internal/legacy"
-	"tinygo.org/x/drivers/internal/pin"
 )

 const (
@@ -38,11 +37,8 @@ func New(b drivers.SPI) *Device {

 // NewSoftwareSPI returns a new APA102 driver that will use a software based
 // implementation of the SPI protocol.
-func NewSoftwareSPI(sckPin, sdoPin pin.Output, delay uint32) *Device {
-	return New(&bbSPI{SCK: sckPin.Set, SDO: sdoPin.Set, Delay: delay, configurePins: func() {
-		legacy.ConfigurePinOut(sckPin)
-		legacy.ConfigurePinOut(sdoPin)
-	}})
+func NewSoftwareSPI(sckPin, sdoPin machine.Pin, delay uint32) *Device {
+	return New(&bbSPI{SCK: sckPin, SDO: sdoPin, Delay: delay})
 }

 // WriteColors writes the given RGBA color slice out using the APA102 protocol.
@@ -1,9 +1,6 @@
 package apa102

-import (
-	"tinygo.org/x/drivers/internal/legacy"
-	"tinygo.org/x/drivers/internal/pin"
-)
+import "machine"

 // bbSPI is a dumb bit-bang implementation of SPI protocol that is hardcoded
 // to mode 0 and ignores trying to receive data. Just enough for the APA102.
@@ -11,18 +8,15 @@ import (
 // most purposes other than the APA102 package. It might be desirable to make
 // this more generic and include it in the TinyGo "machine" package instead.
 type bbSPI struct {
-	SCK           pin.OutputFunc
-	SDO           pin.OutputFunc
-	Delay         uint32
-	configurePins func()
+	SCK   machine.Pin
+	SDO   machine.Pin
+	Delay uint32
 }

 // Configure sets up the SCK and SDO pins as outputs and sets them low
 func (s *bbSPI) Configure() {
-	if s.configurePins == nil {
-		panic(legacy.ErrConfigBeforeInstantiated)
-	}
-	s.configurePins()
+	s.SCK.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	s.SDO.Configure(machine.PinConfig{Mode: machine.PinOutput})
 	s.SCK.Low()
 	s.SDO.Low()
 	if s.Delay == 0 {
@@ -1,36 +1,31 @@
 package bmi160

 import (
+	"machine"
 	"time"

 	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/internal/legacy"
-	"tinygo.org/x/drivers/internal/pin"
 )

 // DeviceSPI is the SPI interface to a BMI160 accelerometer/gyroscope. There is
 // also an I2C interface, but it is not yet supported.
 type DeviceSPI struct {
 	// Chip select pin
-	csb pin.OutputFunc
+	CSB machine.Pin

 	buf [7]byte

 	// SPI bus (requires chip select to be usable).
-	bus           drivers.SPI
-	configurePins func()
+	Bus drivers.SPI
 }

 // NewSPI returns a new device driver. The pin and SPI interface are not
 // touched, provide a fully configured SPI object and call Configure to start
 // using this device.
-func NewSPI(csb pin.Output, spi drivers.SPI) *DeviceSPI {
+func NewSPI(csb machine.Pin, spi drivers.SPI) *DeviceSPI {
 	return &DeviceSPI{
-		csb: csb.Set, // chip select
-		bus: spi,
-		configurePins: func() {
-			legacy.ConfigurePinOut(csb)
-		},
+		CSB: csb, // chip select
+		Bus: spi,
 	}
 }

@@ -38,11 +33,9 @@ func NewSPI(csb pin.Output, spi drivers.SPI) *DeviceSPI {
 // configures the BMI160, but it does not configure the SPI interface (it is
 // assumed to be up and running).
 func (d *DeviceSPI) Configure() error {
-	if d.configurePins == nil {
-		return legacy.ErrConfigBeforeInstantiated
-	}
-	d.configurePins()
-	d.csb.High()
+	d.CSB.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	d.CSB.High()
+
 	// The datasheet recommends doing a register read from address 0x7F to get
 	// SPI communication going:
 	// > If CSB sees a rising edge after power-up, the BMI160 interface switches
@@ -93,9 +86,9 @@ func (d *DeviceSPI) ReadTemperature() (temperature int32, err error) {
 	data[0] = 0x80 | reg_TEMPERATURE_0
 	data[1] = 0
 	data[2] = 0
-	d.csb.Low()
-	err = d.bus.Tx(data, data)
-	d.csb.High()
+	d.CSB.Low()
+	err = d.Bus.Tx(data, data)
+	d.CSB.High()
 	if err != nil {
 		return
 	}
@@ -130,9 +123,9 @@ func (d *DeviceSPI) ReadAcceleration() (x int32, y int32, z int32, err error) {
 	for i := 1; i < len(data); i++ {
 		data[i] = 0
 	}
-	d.csb.Low()
-	err = d.bus.Tx(data, data)
-	d.csb.High()
+	d.CSB.Low()
+	err = d.Bus.Tx(data, data)
+	d.CSB.High()
 	if err != nil {
 		return
 	}
@@ -160,9 +153,9 @@ func (d *DeviceSPI) ReadRotation() (x int32, y int32, z int32, err error) {
 	for i := 1; i < len(data); i++ {
 		data[i] = 0
 	}
-	d.csb.Low()
-	err = d.bus.Tx(data, data)
-	d.csb.High()
+	d.CSB.Low()
+	err = d.Bus.Tx(data, data)
+	d.CSB.High()
 	if err != nil {
 		return
 	}
@@ -208,9 +201,9 @@ func (d *DeviceSPI) readRegister(address uint8) uint8 {
 	data := d.buf[:2]
 	data[0] = 0x80 | address
 	data[1] = 0
-	d.csb.Low()
-	d.bus.Tx(data, data)
-	d.csb.High()
+	d.CSB.Low()
+	d.Bus.Tx(data, data)
+	d.CSB.High()
 	return data[1]
 }

@@ -224,7 +217,7 @@ func (d *DeviceSPI) writeRegister(address, data uint8) {
 	buf[0] = address
 	buf[1] = data

-	d.csb.Low()
-	d.bus.Tx(buf, buf)
-	d.csb.High()
+	d.CSB.Low()
+	d.Bus.Tx(buf, buf)
+	d.CSB.High()
 }
@@ -23,7 +23,6 @@ type Filter uint
 type Device struct {
 	bus         drivers.I2C
 	Address     uint16
-	buf         [6]byte
 	cali        calibrationCoefficients
 	Temperature Oversampling
 	Pressure    Oversampling
@@ -135,8 +134,8 @@ func (d *Device) PrintCali() {

 // ReadTemperature returns the temperature in celsius milli degrees (°C/1000).
 func (d *Device) ReadTemperature() (temperature int32, err error) {
-	data := d.buf[:3]
-	if err = d.readData(REG_TEMP, data); err != nil {
+	data, err := d.readData(REG_TEMP, 3)
+	if err != nil {
 		return
 	}

@@ -159,8 +158,8 @@ func (d *Device) ReadTemperature() (temperature int32, err error) {
 // ReadPressure returns the pressure in milli pascals (mPa).
 func (d *Device) ReadPressure() (pressure int32, err error) {
 	// First 3 bytes are Pressure, last 3 bytes are Temperature
-	data := d.buf[:6]
-	if err = d.readData(REG_PRES, data); err != nil {
+	data, err := d.readData(REG_PRES, 6)
+	if err != nil {
 		return
 	}

@@ -204,7 +203,7 @@ func (d *Device) ReadPressure() (pressure int32, err error) {
 }

 // readData reads n number of bytes of the specified register
-func (d *Device) readData(register int, data []byte) error {
+func (d *Device) readData(register int, n int) ([]byte, error) {
 	// If not in normal mode, set the mode to FORCED mode, to prevent incorrect measurements
 	// After the measurement in FORCED mode, the sensor will return to SLEEP mode
 	if d.Mode != MODE_NORMAL {
@@ -219,7 +218,9 @@ func (d *Device) readData(register int, data []byte) error {
 	}

 	// Read the requested register
-	return legacy.ReadRegister(d.bus, uint8(d.Address), uint8(register), data[:])
+	data := make([]byte, n)
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), uint8(register), data[:])
+	return data, err
 }

 // convert3Bytes converts three bytes to int32
@@ -1,256 +0,0 @@
-// Package bno08x provides a TinyGo driver for the Adafruit BNO08x 9-DOF IMU sensors.
-//
-// This driver implements the CEVA SH-2 protocol over the SHTP transport layer,
-// providing access to orientation, motion, and environmental sensors.
-//
-// Datasheet: https://www.ceva-ip.com/wp-content/uploads/BNO080_085-Datasheet.pdf
-package bno08x
-
-import (
-	"time"
-
-	"tinygo.org/x/drivers/internal/pin"
-)
-
-// Buser is the interface that wraps I2C or SPI bus operations.
-type Buser interface {
-	configure(address uint16, readChunk int) error
-	read(target []byte) (int, uint32, error)
-	write(data []byte) error
-	softReset() error
-}
-
-// Device represents a BNO08x sensor device.
-type Device struct {
-	bus      Buser
-	resetPin pin.OutputFunc
-
-	hal  *hal
-	shtp *shtp
-	sh2  *sh2Protocol
-
-	queue      [8]SensorValue
-	queueHead  int
-	queueTail  int
-	queueCount int
-
-	productIDs ProductIDs
-	lastReset  bool
-}
-
-// Config holds configuration options for the device.
-type Config struct {
-	// Address is the I2C address (used only for I2C bus).
-	Address uint16
-
-	// ResetPin is the optional hardware reset pin.
-	ResetPin pin.OutputFunc
-
-	// ReadChunk is the I2C read chunk size (used only for I2C bus).
-	ReadChunk int
-
-	// StartupDelay is the delay after reset (default: 100ms).
-	StartupDelay time.Duration
-}
-
-// Configure initializes the sensor and prepares it for use.
-func (d *Device) Configure(cfg Config) error {
-	// Configure bus-specific settings
-	if err := d.bus.configure(cfg.Address, cfg.ReadChunk); err != nil {
-		return err
-	}
-
-	if cfg.ResetPin != nil {
-		d.resetPin = cfg.ResetPin
-	}
-	if cfg.StartupDelay <= 0 {
-		cfg.StartupDelay = 100 * time.Millisecond
-	}
-
-	d.hal = newHAL(d)
-	d.shtp = newSHTP(d.hal)
-	d.sh2 = newSH2Protocol(d)
-
-	d.queueHead = 0
-	d.queueTail = 0
-	d.queueCount = 0
-	d.productIDs = ProductIDs{}
-	d.lastReset = false
-
-	if err := d.hal.open(); err != nil {
-		return err
-	}
-
-	// Now that handlers are registered, perform reset
-	// Try hardware reset first if available
-	if d.resetPin != nil {
-		d.hardwareReset()
-		time.Sleep(cfg.StartupDelay)
-	} else {
-		// No hardware reset pin - try soft reset via bus
-		if err := d.bus.softReset(); err != nil {
-			// If that fails, try soft reset via SHTP protocol
-			_ = d.sh2.softReset()
-			time.Sleep(50 * time.Millisecond)
-		}
-	}
-
-	// Wait for reset notification by actively polling
-	// The sensor should send reset complete message shortly after reset
-	deadline := time.Now().Add(1000 * time.Millisecond)
-	pollCount := 0
-	for time.Now().Before(deadline) {
-		pollCount++
-		if err := d.service(); err != nil {
-			// Ignore errors during initial polling - sensor might not be ready
-			time.Sleep(1 * time.Millisecond)
-			continue
-		}
-		if d.lastReset {
-			break
-		}
-		time.Sleep(1 * time.Millisecond)
-	}
-
-	if !d.lastReset {
-		return errTimeout
-	}
-
-	// NOTE: We intentionally skip the Initialize command (sh2_initialize)
-	// Testing revealed that sending the Initialize command (0xF2 0x00 0x04 0x01...)
-	// prevents the BNO08x from sending sensor reports on channel 3.
-	// The sensor works correctly without this command after a soft reset.
-	// The Arduino library likely works because it does a hardware reset which
-	// may put the sensor in a different state, or their initialization sequence
-	// differs in a way that doesn't trigger this issue.
-
-	// Request product IDs
-	if err := d.sh2.requestProductIDs(); err != nil {
-		return err
-	}
-
-	// Wait for product IDs with polling delay
-	deadline = time.Now().Add(500 * time.Millisecond)
-	for time.Now().Before(deadline) {
-		if err := d.service(); err != nil {
-			time.Sleep(10 * time.Millisecond)
-			continue
-		}
-		if d.productIDs.NumEntries > 0 {
-			break
-		}
-		time.Sleep(10 * time.Millisecond)
-	}
-
-	if d.productIDs.NumEntries == 0 {
-		return errTimeout
-	}
-
-	return nil
-}
-
-// EnableReport enables a specific sensor report at the given interval.
-func (d *Device) EnableReport(id SensorID, intervalUs uint32) error {
-	err := d.sh2.enableReport(id, intervalUs)
-	if err != nil {
-		return err
-	}
-
-	// Poll a few times to let the sensor process the command
-	// and potentially send acknowledgment
-	for i := 0; i < 10; i++ {
-		_ = d.service()
-		time.Sleep(10 * time.Millisecond)
-	}
-
-	return nil
-}
-
-// GetSensorConfig retrieves the current configuration for a sensor.
-func (d *Device) GetSensorConfig(id SensorID) (SensorConfig, error) {
-	return d.sh2.getSensorConfig(id)
-}
-
-// SetSensorConfig sets the configuration for a sensor.
-func (d *Device) SetSensorConfig(id SensorID, config SensorConfig) error {
-	return d.sh2.setSensorConfig(id, config)
-}
-
-// WasReset returns true if the sensor signaled a reset since the last call.
-func (d *Device) WasReset() bool {
-	if d.lastReset {
-		d.lastReset = false
-		return true
-	}
-	return false
-}
-
-// GetSensorEvent retrieves the next available sensor event if present.
-func (d *Device) GetSensorEvent() (SensorValue, bool) {
-	if d.queueCount == 0 {
-		if err := d.service(); err != nil {
-			return SensorValue{}, false
-		}
-		if d.queueCount == 0 {
-			return SensorValue{}, false
-		}
-	}
-
-	value := d.queue[d.queueHead]
-	d.queueHead = (d.queueHead + 1) % len(d.queue)
-	d.queueCount--
-
-	return value, true
-}
-
-// ProductIDs returns the cached product identification information.
-func (d *Device) ProductIDs() ProductIDs {
-	return d.productIDs
-}
-
-// Service processes pending sensor data.
-// This is called automatically by GetSensorEvent but can be called manually
-// for more control over timing.
-func (d *Device) Service() error {
-	return d.service()
-}
-
-func (d *Device) enqueue(value SensorValue) {
-	next := (d.queueTail + 1) % len(d.queue)
-	if d.queueCount == len(d.queue) {
-		// Queue full, drop oldest
-		d.queueHead = (d.queueHead + 1) % len(d.queue)
-		d.queueCount--
-	}
-	d.queue[d.queueTail] = value
-	d.queueTail = next
-	d.queueCount++
-}
-
-func (d *Device) service() error {
-	if d.shtp == nil {
-		return nil
-	}
-	for {
-		processed, err := d.shtp.poll()
-		if err != nil {
-			return err
-		}
-		if !processed {
-			break
-		}
-	}
-	return nil
-}
-
-func (d *Device) hardwareReset() {
-	if d.resetPin == nil {
-		return
-	}
-	d.resetPin.High()
-	time.Sleep(10 * time.Millisecond)
-	d.resetPin.Low()
-	time.Sleep(10 * time.Millisecond)
-	d.resetPin.High()
-	time.Sleep(10 * time.Millisecond)
-}
@@ -1,173 +0,0 @@
-package bno08x
-
-import (
-	"time"
-
-	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/internal/pin"
-)
-
-// I2CConfig holds I2C-specific configuration options.
-type I2CConfig struct {
-	// Address is the I2C address (default: 0x4A).
-	Address uint16
-
-	// ResetPin is the optional hardware reset pin.
-	ResetPin pin.OutputFunc
-
-	// ReadChunk is the I2C read chunk size (default: 32 bytes).
-	ReadChunk int
-}
-
-const (
-	// DefaultAddress is the default I2C address.
-	DefaultAddress = 0x4A
-)
-
-// NewI2C creates a new BNO08x device using I2C communication.
-func NewI2C(bus drivers.I2C) *Device {
-	return &Device{
-		bus: &I2CBus{
-			wire:      bus,
-			address:   DefaultAddress,
-			readChunk: i2cDefaultChunk,
-		},
-	}
-}
-
-// I2CBus implements the Buser interface for I2C communication.
-type I2CBus struct {
-	wire      drivers.I2C
-	address   uint16
-	readChunk int
-	scratch   []byte
-	header    [shtpHeaderLength]byte
-}
-
-// configure sets up the I2C bus with the specified address and chunk size.
-func (b *I2CBus) configure(address uint16, readChunk int) error {
-	if address != 0 {
-		b.address = address
-	}
-	if readChunk > 0 {
-		b.readChunk = readChunk
-	}
-
-	chunk := b.readChunk
-	if chunk < shtpHeaderLength {
-		chunk = shtpHeaderLength
-	}
-	b.scratch = make([]byte, chunk)
-
-	return nil
-}
-
-// read reads data from the I2C bus.
-func (b *I2CBus) read(target []byte) (int, uint32, error) {
-	// Read SHTP header (4 bytes) to get packet length
-	// Use pre-allocated header buffer to avoid allocations
-	err := b.wire.Tx(b.address, nil, b.header[:])
-	if err != nil {
-		return 0, 0, err
-	}
-
-	// Parse packet length from header
-	packetLen := uint16(b.header[0]) | (uint16(b.header[1]) << 8)
-
-	// Check if continuation bit is set (0x8000)
-	// This means no data is available yet
-	if packetLen&continueMask != 0 {
-		return 0, 0, nil
-	}
-
-	// No continuation bit, check for actual data
-	if packetLen == 0 {
-		return 0, 0, nil
-	}
-
-	if int(packetLen) > len(target) {
-		return 0, 0, errBufferTooSmall
-	}
-
-	// Now read the full packet in chunks, re-reading the header in first chunk
-	// This follows Arduino's approach: initial header read is just to get size,
-	// actual packet data (including header) is read in the loop
-	cargoRemaining := int(packetLen)
-	offset := 0
-	firstRead := true
-
-	for cargoRemaining > 0 {
-		var request int
-		if firstRead {
-			// First read: get the full packet including header (up to chunkSize)
-			request = b.readChunk
-			if request > cargoRemaining {
-				request = cargoRemaining
-			}
-		} else {
-			// Subsequent reads: each chunk has a 4-byte header we need to skip
-			request = b.readChunk
-			if request > cargoRemaining+shtpHeaderLength {
-				request = cargoRemaining + shtpHeaderLength
-			}
-		}
-
-		// Ensure scratch buffer is large enough
-		if request > len(b.scratch) {
-			b.scratch = make([]byte, request)
-		}
-		buf := b.scratch[:request]
-
-		// Read chunk
-		err = b.wire.Tx(b.address, nil, buf)
-		if err != nil {
-			return 0, 0, err
-		}
-
-		var cargoRead int
-		if firstRead {
-			// First read: copy everything including header
-			cargoRead = request
-			copy(target[offset:], buf[:cargoRead])
-			firstRead = false
-		} else {
-			// Subsequent reads: skip the 4-byte header
-			cargoRead = request - shtpHeaderLength
-			copy(target[offset:], buf[shtpHeaderLength:shtpHeaderLength+cargoRead])
-		}
-
-		offset += cargoRead
-		cargoRemaining -= cargoRead
-	}
-
-	// Extract timestamp from the header in the target buffer
-	timestamp := uint32(target[2]) | (uint32(target[3]) << 8)
-
-	return int(packetLen), timestamp, nil
-}
-
-// write sends data over the I2C bus.
-func (b *I2CBus) write(data []byte) error {
-	return b.wire.Tx(b.address, data, nil)
-}
-
-// softReset sends a soft reset command via I2C.
-func (b *I2CBus) softReset() error {
-	// Send soft reset packet via I2C as per Adafruit implementation
-	// Format: [length_low, length_high, channel, sequence, command]
-	// This is: 5 bytes total, channel 1 (executable), command 1 (reset)
-	softResetPacket := []byte{5, 0, 1, 0, 1}
-
-	// Try up to 5 times
-	var err error
-	for i := 0; i < 5; i++ {
-		err = b.wire.Tx(b.address, softResetPacket, nil)
-		if err == nil {
-			// Success - wait for sensor to process reset
-			time.Sleep(300 * time.Millisecond)
-			return nil
-		}
-		time.Sleep(30 * time.Millisecond)
-	}
-	return err
-}
@@ -1,179 +0,0 @@
-package bno08x
-
-// I2C and protocol constants
-const (
-	shtpHeaderLength = 4
-	maxTransferOut   = 256
-	maxTransferIn    = 384
-
-	i2cDefaultChunk = 32
-	continueMask    = 0x8000
-)
-
-// SHTP channel numbers
-const (
-	channelCommand      = 0
-	channelExecutable   = 1
-	channelControl      = 2
-	channelSensorReport = 3
-	channelWakeReport   = 4
-	channelGyroRV       = 5
-)
-
-// SH-2 report IDs
-const (
-	reportProdIDReq      = 0xF9
-	reportProdIDResp     = 0xF8
-	reportSetFeature     = 0xFD
-	reportGetFeature     = 0xFE
-	reportGetFeatureResp = 0xFC
-	reportCommandReq     = 0xF2
-	reportCommandResp    = 0xF1
-	reportFRSWriteReq    = 0xF7
-	reportFRSWriteData   = 0xF6
-	reportFRSReadReq     = 0xF4
-	reportFRSReadResp    = 0xF3
-	reportBaseTimestamp  = 0xFB
-	reportTimestampReuse = 0xFA
-	reportForceFlush     = 0xF0
-	reportFlushCompleted = 0xEF
-	reportResetReq       = 0xF1
-	reportResetResp      = 0xF0
-)
-
-// SH-2 commands
-const (
-	cmdErrors         = 0x01
-	cmdCounts         = 0x02
-	cmdTare           = 0x03
-	cmdInitialize     = 0x04
-	cmdFRS            = 0x05
-	cmdDCD            = 0x06
-	cmdMECal          = 0x07
-	cmdProdIDReq      = 0x07
-	cmdDCDSave        = 0x09
-	cmdGetOscType     = 0x0A
-	cmdClearDCDReset  = 0x0B
-	cmdCal            = 0x0C
-	cmdBootloader     = 0x0D
-	cmdInteractiveZRO = 0x0E
-
-	// Command parameters
-	initSystem      = 0x01
-	initUnsolicited = 0x80
-
-	countsClearCounts = 0x01
-	countsGetCounts   = 0x00
-
-	tareTareNow          = 0x00
-	tarePersist          = 0x01
-	tareSetReorientation = 0x02
-
-	calStart  = 0x00
-	calFinish = 0x01
-
-	commandParamCount  = 9
-	responseValueCount = 11
-)
-
-// Feature report flags
-const (
-	featChangeSensitivityRelative = 0x01
-	featChangeSensitivityEnabled  = 0x02
-	featWakeEnabled               = 0x04
-	featAlwaysOnEnabled           = 0x08
-)
-
-// Scaling factors for sensor data
-// These are derived from the Q-point encoding in the SH-2 specification
-const (
-	scaleQuat        = 1.0 / 16384.0   // Q14
-	scaleAccel       = 1.0 / 256.0     // Q8
-	scaleGyro        = 1.0 / 512.0     // Q9
-	scaleMag         = 1.0 / 16.0      // Q4
-	scaleAccuracy    = 1.0 / 4096.0    // Q12
-	scalePressure    = 1.0 / 1048576.0 // Q20
-	scaleLight       = 1.0 / 256.0     // Q8
-	scaleHumidity    = 1.0 / 256.0     // Q8
-	scaleProximity   = 1.0 / 16.0      // Q4
-	scaleTemperature = 1.0 / 128.0     // Q7
-	scaleAngle       = 1.0 / 16.0      // Q4
-	scaleHeartRate   = 1.0 / 16.0      // Q4
-)
-
-// Activity classifier codes (extended beyond standard SH-2)
-const (
-	ActivityUnknown     = 0
-	ActivityInVehicle   = 1
-	ActivityOnBicycle   = 2
-	ActivityOnFoot      = 3
-	ActivityStill       = 4
-	ActivityTilting     = 5
-	ActivityWalking     = 6
-	ActivityRunning     = 7
-	ActivityOnStairs    = 8
-	ActivityOptionCount = 9
-)
-
-// Stability classifier values
-const (
-	StabilityUnknown    = 0
-	StabilityOnTable    = 1
-	StabilityStationary = 2
-	StabilityStable     = 3
-	StabilityMotion     = 4
-)
-
-// Tap detector flags
-const (
-	TapX      = 0x01 // 1 - X axis tapped
-	TapXPos   = 0x02 // 2 - X positive direction
-	TapY      = 0x04 // 4 - Y axis tapped
-	TapYPos   = 0x08 // 8 - Y positive direction
-	TapZ      = 0x10 // 16 - Z axis tapped
-	TapZPos   = 0x20 // 32 - Z positive direction
-	TapDouble = 0x40 // 64 - Double tap occurred
-)
-
-// GUID values for SHTP
-const (
-	guidSHTP       = 0
-	guidExecutable = 1
-	guidSensorHub  = 2
-)
-
-// Advertisement tags
-const (
-	tagNull                = 0
-	tagGUID                = 1
-	tagMaxCargoHeaderWrite = 2
-	tagMaxCargoHeaderRead  = 3
-	tagMaxTransferWrite    = 4
-	tagMaxTransferRead     = 5
-	tagNormalChannel       = 6
-	tagWakeChannel         = 7
-	tagAppName             = 8
-	tagChannelName         = 9
-	tagAdvCount            = 10
-	tagAppSpecific         = 0x80
-	tagSH2Version          = 0x80
-	tagSH2ReportLengths    = 0x81
-)
-
-// Timeouts
-const (
-	advertTimeout  = 200000 // microseconds
-	commandTimeout = 300000 // microseconds
-)
-
-// Executable device commands
-const (
-	execDeviceCmdReset = 1
-	execDeviceCmdOn    = 2
-	execDeviceCmdSleep = 3
-)
-
-// Executable device responses
-const (
-	execDeviceRespResetComplete = 1
-)
@@ -1,316 +0,0 @@
-package bno08x
-
-import "encoding/binary"
-
-// decodeSensor decodes a sensor report payload into a SensorValue.
-func decodeSensor(payload []byte, timestamp uint32) (SensorValue, bool) {
-	if len(payload) < 4 {
-		return SensorValue{}, false
-	}
-
-	value := SensorValue{
-		id:        SensorID(payload[0]),
-		sequence:  payload[1],
-		status:    payload[2] & 0x03,
-		delay:     payload[3],
-		timestamp: uint64(timestamp),
-	}
-
-	data := payload[4:]
-
-	switch value.id {
-	case SensorRawAccelerometer:
-		if len(data) >= 10 {
-			value.rawAccelerometer = RawVector3{
-				X:         int16(binary.LittleEndian.Uint16(data[0:])),
-				Y:         int16(binary.LittleEndian.Uint16(data[2:])),
-				Z:         int16(binary.LittleEndian.Uint16(data[4:])),
-				Timestamp: binary.LittleEndian.Uint32(data[6:]),
-			}
-		}
-
-	case SensorAccelerometer:
-		if len(data) >= 6 {
-			value.accelerometer = Vector3{
-				X: qToFloat(data[0:], scaleAccel),
-				Y: qToFloat(data[2:], scaleAccel),
-				Z: qToFloat(data[4:], scaleAccel),
-			}
-		}
-
-	case SensorLinearAcceleration:
-		if len(data) >= 6 {
-			value.linearAcceleration = Vector3{
-				X: qToFloat(data[0:], scaleAccel),
-				Y: qToFloat(data[2:], scaleAccel),
-				Z: qToFloat(data[4:], scaleAccel),
-			}
-		}
-
-	case SensorGravity:
-		if len(data) >= 6 {
-			value.gravity = Vector3{
-				X: qToFloat(data[0:], scaleAccel),
-				Y: qToFloat(data[2:], scaleAccel),
-				Z: qToFloat(data[4:], scaleAccel),
-			}
-		}
-
-	case SensorRawGyroscope:
-		if len(data) >= 12 {
-			value.rawGyroscope = RawGyroscope{
-				X:           int16(binary.LittleEndian.Uint16(data[0:])),
-				Y:           int16(binary.LittleEndian.Uint16(data[2:])),
-				Z:           int16(binary.LittleEndian.Uint16(data[4:])),
-				Temperature: int16(binary.LittleEndian.Uint16(data[6:])),
-				Timestamp:   binary.LittleEndian.Uint32(data[8:]),
-			}
-		}
-
-	case SensorGyroscope:
-		if len(data) >= 6 {
-			value.gyroscope = Vector3{
-				X: qToFloat(data[0:], scaleGyro),
-				Y: qToFloat(data[2:], scaleGyro),
-				Z: qToFloat(data[4:], scaleGyro),
-			}
-		}
-
-	case SensorGyroscopeUncalibrated:
-		if len(data) >= 12 {
-			value.gyroscopeUncal = GyroscopeUncalibrated{
-				X:     qToFloat(data[0:], scaleGyro),
-				Y:     qToFloat(data[2:], scaleGyro),
-				Z:     qToFloat(data[4:], scaleGyro),
-				BiasX: qToFloat(data[6:], scaleGyro),
-				BiasY: qToFloat(data[8:], scaleGyro),
-				BiasZ: qToFloat(data[10:], scaleGyro),
-			}
-		}
-
-	case SensorRawMagnetometer:
-		if len(data) >= 10 {
-			value.rawMagnetometer = RawVector3{
-				X:         int16(binary.LittleEndian.Uint16(data[0:])),
-				Y:         int16(binary.LittleEndian.Uint16(data[2:])),
-				Z:         int16(binary.LittleEndian.Uint16(data[4:])),
-				Timestamp: binary.LittleEndian.Uint32(data[6:]),
-			}
-		}
-
-	case SensorMagneticField:
-		if len(data) >= 6 {
-			value.magneticField = Vector3{
-				X: qToFloat(data[0:], scaleMag),
-				Y: qToFloat(data[2:], scaleMag),
-				Z: qToFloat(data[4:], scaleMag),
-			}
-		}
-
-	case SensorMagneticFieldUncalibrated:
-		if len(data) >= 12 {
-			value.magneticFieldUncal = MagneticFieldUncalibrated{
-				X:     qToFloat(data[0:], scaleMag),
-				Y:     qToFloat(data[2:], scaleMag),
-				Z:     qToFloat(data[4:], scaleMag),
-				BiasX: qToFloat(data[6:], scaleMag),
-				BiasY: qToFloat(data[8:], scaleMag),
-				BiasZ: qToFloat(data[10:], scaleMag),
-			}
-		}
-
-	case SensorRotationVector:
-		if len(data) >= 10 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-			value.quaternionAccuracy = qToFloat(data[8:], scaleAccuracy)
-		}
-
-	case SensorGameRotationVector:
-		if len(data) >= 8 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-		}
-
-	case SensorGeomagneticRotationVector:
-		if len(data) >= 10 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-			value.quaternionAccuracy = qToFloat(data[8:], scaleAccuracy)
-		}
-
-	case SensorARVRStabilizedRV:
-		if len(data) >= 10 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-			value.quaternionAccuracy = qToFloat(data[8:], scaleAccuracy)
-		}
-
-	case SensorARVRStabilizedGRV:
-		if len(data) >= 8 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-		}
-
-	case SensorGyroIntegratedRV:
-		if len(data) >= 10 {
-			value.quaternion = Quaternion{
-				I:    qToFloat(data[0:], scaleQuat),
-				J:    qToFloat(data[2:], scaleQuat),
-				K:    qToFloat(data[4:], scaleQuat),
-				Real: qToFloat(data[6:], scaleQuat),
-			}
-			// Angular velocity X at data[8:10]
-		}
-
-	case SensorPressure:
-		if len(data) >= 4 {
-			value.pressure = float32(int32(binary.LittleEndian.Uint32(data[0:]))) * scalePressure
-		}
-
-	case SensorAmbientLight:
-		if len(data) >= 4 {
-			value.ambientLight = float32(int32(binary.LittleEndian.Uint32(data[0:]))) * scaleLight
-		}
-
-	case SensorHumidity:
-		if len(data) >= 2 {
-			value.humidity = qToFloat(data[0:], scaleHumidity)
-		}
-
-	case SensorProximity:
-		if len(data) >= 2 {
-			value.proximity = qToFloat(data[0:], scaleProximity)
-		}
-
-	case SensorTemperature:
-		if len(data) >= 2 {
-			value.temperature = qToFloat(data[0:], scaleTemperature)
-		}
-
-	case SensorTapDetector:
-		if len(data) >= 1 {
-			value.tapDetector = TapDetector{
-				Flags: data[0],
-			}
-		}
-
-	case SensorStepDetector:
-		if len(data) >= 4 {
-			value.stepDetector = StepDetector{
-				Latency: binary.LittleEndian.Uint32(data[0:]),
-			}
-		}
-
-	case SensorStepCounter:
-		if len(data) >= 8 {
-			value.stepCounter = StepCounter{
-				Count:   uint16(binary.LittleEndian.Uint32(data[4:8])),
-				Latency: binary.LittleEndian.Uint32(data[0:4]),
-			}
-		}
-
-	case SensorSignificantMotion:
-		if len(data) >= 2 {
-			value.significantMotion = SignificantMotion{
-				Motion: binary.LittleEndian.Uint16(data[0:]),
-			}
-		}
-
-	case SensorStabilityClassifier:
-		if len(data) >= 1 {
-			value.stabilityClassifier = StabilityClassifier{
-				Classification: data[0],
-			}
-		}
-
-	case SensorStabilityDetector:
-		if len(data) >= 1 {
-			value.stabilityDetector = data[0]
-		}
-
-	case SensorShakeDetector:
-		if len(data) >= 2 {
-			value.shakeDetector = ShakeDetector{
-				Shake: binary.LittleEndian.Uint16(data[0:]),
-			}
-		}
-
-	case SensorFlipDetector:
-		if len(data) >= 2 {
-			value.flipDetector = binary.LittleEndian.Uint16(data[0:2])
-		}
-
-	case SensorPickupDetector:
-		if len(data) >= 2 {
-			// Pickup detected at data[0:2]
-		}
-
-	case SensorPersonalActivityClassifier:
-		if len(data) >= 16 {
-			value.personalActivityClassifier = PersonalActivityClassifier{
-				Page:            data[0],
-				MostLikelyState: data[1],
-				EndOfPage:       data[15],
-			}
-			for i := 0; i < 10 && i+2 < len(data); i++ {
-				value.personalActivityClassifier.Confidence[i] = data[2+i]
-			}
-		}
-
-	case SensorSleepDetector:
-		if len(data) >= 1 {
-			value.sleepDetector = data[0]
-		}
-
-	case SensorTiltDetector:
-		if len(data) >= 1 {
-			value.tiltDetector = data[0]
-		}
-
-	case SensorPocketDetector:
-		if len(data) >= 1 {
-			value.pocketDetector = data[0]
-		}
-
-	case SensorCircleDetector:
-		if len(data) >= 1 {
-			value.circleDetector = data[0]
-		}
-
-	case SensorHeartRateMonitor:
-		if len(data) >= 2 {
-			value.heartRateMonitor = binary.LittleEndian.Uint16(data[0:])
-		}
-	}
-
-	return value, true
-}
-
-// qToFloat converts a Q-point fixed-point value to float32.
-func qToFloat(data []byte, scale float32) float32 {
-	if len(data) < 2 {
-		return 0
-	}
-	return float32(int16(binary.LittleEndian.Uint16(data))) * scale
-}
@@ -1,43 +0,0 @@
-package bno08x
-
-import (
-	"time"
-)
-
-// hal implements the hardware abstraction layer for bus communication.
-type hal struct {
-	device *Device
-}
-
-func newHAL(dev *Device) *hal {
-	return &hal{
-		device: dev,
-	}
-}
-
-func (h *hal) open() error {
-	// HAL is now open and ready for communication
-	// Soft reset will be sent after handlers are registered
-	return nil
-}
-
-func (h *hal) close() {}
-
-func (h *hal) read(target []byte) (int, uint32, error) {
-	return h.device.bus.read(target)
-}
-
-func (h *hal) write(frame []byte) (int, error) {
-	if len(frame) > maxTransferOut {
-		return 0, errFrameTooLarge
-	}
-	err := h.device.bus.write(frame)
-	if err != nil {
-		return 0, err
-	}
-	return len(frame), nil
-}
-
-func (h *hal) getTimeUs() uint32 {
-	return uint32(time.Now().UnixNano() / 1000)
-}
@@ -1,387 +0,0 @@
-// SH-2 specification found at https://www.ceva-ip.com/wp-content/uploads/SH-2-Reference-Manual.pdf
-
-package bno08x
-
-import (
-	"encoding/binary"
-	"time"
-)
-
-// getReportLen returns the length in bytes of a sensor report given its ID.
-// Returns 0 for unknown report IDs.
-func getReportLen(reportID byte) int {
-	switch reportID {
-	case 0xF1: // FLUSH_COMPLETED
-		return 6
-	case 0xFA: // TIMESTAMP_REBASE
-		return 5
-	case 0xFB: // BASE_TIMESTAMP_REF
-		return 5
-	case 0xFC: // GET_FEATURE_RESP
-		return 17
-	case 0x01: // Accelerometer (calibrated)
-		return 10
-	case 0x02: // Gyroscope (calibrated)
-		return 10
-	case 0x03: // Magnetic field (calibrated)
-		return 10
-	case 0x04: // Linear acceleration
-		return 10
-	case 0x05: // Rotation vector
-		return 14
-	case 0x06: // Gravity
-		return 10
-	case 0x07: // Gyroscope uncalibrated
-		return 16
-	case 0x08: // Game rotation vector
-		return 12
-	case 0x09: // Geomagnetic rotation vector
-		return 14
-	case 0x0A: // Pressure
-		return 10
-	case 0x0B: // Ambient light
-		return 10
-	case 0x0C: // Humidity
-		return 10
-	case 0x0D: // Proximity
-		return 10
-	case 0x0E: // Temperature
-		return 10
-	case 0x0F: // Magnetic field uncalibrated
-		return 16
-	case 0x10: // Tap detector
-		return 5
-	case 0x11: // Step counter
-		return 12
-	case 0x12: // Significant motion
-		return 6
-	case 0x13: // Stability classifier
-		return 5
-	case 0x14: // Raw accelerometer
-		return 16
-	case 0x15: // Raw gyroscope
-		return 16
-	case 0x16: // Raw magnetometer
-		return 16
-	case 0x18: // Step detector
-		return 8
-	case 0x19: // Shake detector
-		return 6
-	case 0x1A: // Flip detector
-		return 6
-	case 0x1B: // Pickup detector
-		return 6
-	case 0x1C: // Stability detector
-		return 6
-	case 0x1E: // Personal activity classifier
-		return 16
-	default:
-		// For most sensor reports, they are typically 10-16 bytes
-		// If we don't know the exact length, return a safe default
-		// that covers most cases (the handler will bounds-check)
-		if reportID < 0xF0 {
-			return 10 // Most sensor reports are at least this long
-		}
-		return 0
-	}
-}
-
-// sh2Protocol implements the Sensor Hub 2 (SH-2) application protocol.
-type sh2Protocol struct {
-	device               *Device
-	transport            *shtp
-	cmdSeq               uint8
-	waiting              bool
-	lastCmd              uint8
-	pendingConfigRequest bool
-	pendingConfigSensor  SensorID
-	receivedConfig       SensorConfig
-	configReady          bool
-	configBuf            [17]byte                    // Reusable buffer for setSensorConfig
-	commandBuf           [3 + commandParamCount]byte // Reusable buffer for sendCommand
-}
-
-func newSH2Protocol(device *Device) *sh2Protocol {
-	proto := &sh2Protocol{
-		device:    device,
-		transport: device.shtp,
-	}
-
-	// Register handlers for each channel
-	device.shtp.register(channelControl, proto.handleControl)
-	device.shtp.register(channelSensorReport, proto.handleSensor)
-	device.shtp.register(channelWakeReport, proto.handleSensor)
-	device.shtp.register(channelGyroRV, proto.handleSensor)
-	device.shtp.register(channelExecutable, proto.handleExecutable)
-
-	return proto
-}
-
-// softReset sends a software reset command to the sensor.
-func (s *sh2Protocol) softReset() error {
-	payload := []byte{execDeviceCmdReset}
-	return s.transport.send(channelExecutable, payload)
-}
-
-// initialize sends the initialize command to the sensor.
-func (s *sh2Protocol) initialize() error {
-	return s.sendCommand(cmdInitialize, []byte{initSystem})
-}
-
-// requestProductIDs requests product identification information.
-func (s *sh2Protocol) requestProductIDs() error {
-	payload := []byte{reportProdIDReq, 0x00}
-	return s.transport.send(channelControl, payload)
-}
-
-// enableReport enables a sensor report at the specified interval.
-func (s *sh2Protocol) enableReport(id SensorID, intervalUs uint32) error {
-	config := SensorConfig{
-		ReportInterval: intervalUs,
-	}
-	return s.setSensorConfig(id, config)
-}
-
-// getSensorConfig retrieves the configuration for a sensor.
-// This method sends a GET_FEATURE request and waits for the response
-// by polling the device. It will timeout after approximately 1 second.
-func (s *sh2Protocol) getSensorConfig(id SensorID) (SensorConfig, error) {
-	// Mark that we're waiting for a config response
-	s.pendingConfigRequest = true
-	s.pendingConfigSensor = id
-	s.configReady = false
-
-	payload := []byte{reportGetFeature, byte(id)}
-	err := s.transport.send(channelControl, payload)
-	if err != nil {
-		s.pendingConfigRequest = false
-		return SensorConfig{}, err
-	}
-
-	// Poll for response with timeout
-	maxAttempts := 100 // ~1 second with 10ms delays
-	for i := 0; i < maxAttempts; i++ {
-		// Service the device to process incoming messages
-		s.device.shtp.poll()
-
-		if s.configReady {
-			s.pendingConfigRequest = false
-			s.configReady = false
-			return s.receivedConfig, nil
-		}
-
-		// Small delay between polls
-		time.Sleep(10 * time.Millisecond)
-	}
-
-	s.pendingConfigRequest = false
-	return SensorConfig{}, errTimeout
-}
-
-// setSensorConfig configures a sensor.
-func (s *sh2Protocol) setSensorConfig(id SensorID, config SensorConfig) error {
-	// Use pre-allocated buffer to avoid allocations
-	payload := s.configBuf[:]
-	payload[0] = reportSetFeature
-	payload[1] = byte(id)
-
-	// Build feature flags
-	var flags uint8
-	if config.ChangeSensitivityEnabled {
-		flags |= featChangeSensitivityEnabled
-	}
-	if config.ChangeSensitivityRelative {
-		flags |= featChangeSensitivityRelative
-	}
-	if config.WakeupEnabled {
-		flags |= featWakeEnabled
-	}
-	if config.AlwaysOnEnabled {
-		flags |= featAlwaysOnEnabled
-	}
-	payload[2] = flags
-
-	binary.LittleEndian.PutUint16(payload[3:5], config.ChangeSensitivity)
-	binary.LittleEndian.PutUint32(payload[5:9], config.ReportInterval)
-	binary.LittleEndian.PutUint32(payload[9:13], config.BatchInterval)
-	binary.LittleEndian.PutUint32(payload[13:17], config.SensorSpecific)
-
-	return s.transport.send(channelControl, payload)
-}
-
-// sendCommand sends a command with parameters to the sensor.
-func (s *sh2Protocol) sendCommand(command byte, params []byte) error {
-	// Use pre-allocated buffer to avoid allocations
-	payload := s.commandBuf[:]
-	payload[0] = reportCommandReq
-	payload[1] = s.cmdSeq
-	payload[2] = command
-	s.cmdSeq++
-	s.lastCmd = command
-	s.waiting = true
-
-	for i := 0; i < commandParamCount && i < len(params); i++ {
-		payload[3+i] = params[i]
-	}
-
-	return s.transport.send(channelControl, payload[:3+commandParamCount])
-}
-
-// handleControl processes control channel messages.
-func (s *sh2Protocol) handleControl(payload []byte, timestamp uint32) {
-	if len(payload) == 0 {
-		return
-	}
-
-	reportID := payload[0]
-
-	switch reportID {
-	case reportProdIDResp:
-		s.handleProdID(payload, timestamp)
-	case reportCommandResp:
-		s.handleCommandResp(payload, timestamp)
-	case reportGetFeatureResp:
-		s.handleGetFeatureResp(payload, timestamp)
-	case reportFRSReadResp:
-		// FRS (Flash Record System) read response
-		// Not implemented in basic version
-	}
-}
-
-// handleProdID processes product ID responses.
-func (s *sh2Protocol) handleProdID(payload []byte, timestamp uint32) {
-	if len(payload) < 16 {
-		return
-	}
-
-	entry := ProductID{
-		ResetCause:   payload[1],
-		VersionMajor: payload[2],
-		VersionMinor: payload[3],
-		PartNumber:   binary.LittleEndian.Uint32(payload[4:8]),
-		BuildNumber:  binary.LittleEndian.Uint32(payload[8:12]),
-		VersionPatch: binary.LittleEndian.Uint16(payload[12:14]),
-		Reserved0:    payload[14],
-		Reserved1:    payload[15],
-	}
-
-	// Store in first slot
-	s.device.productIDs.Entries[0] = entry
-	s.device.productIDs.NumEntries = 1
-}
-
-// handleCommandResp processes command responses.
-func (s *sh2Protocol) handleCommandResp(payload []byte, timestamp uint32) {
-	if len(payload) < 16 {
-		return
-	}
-
-	// seq := payload[1]
-	command := payload[2]
-	// commandSeq := payload[3]
-	// respSeq := payload[4]
-
-	// Check if this response is for our command
-	if s.waiting && command == s.lastCmd {
-		s.waiting = false
-		// Status is in payload[6]
-		// For now, we just acknowledge receipt
-	}
-}
-
-// handleGetFeatureResp processes get feature responses.
-func (s *sh2Protocol) handleGetFeatureResp(payload []byte, timestamp uint32) {
-	if len(payload) < 17 {
-		return
-	}
-
-	// Parse the response
-	sensorID := SensorID(payload[1])
-	flags := payload[2]
-	changeSensitivity := binary.LittleEndian.Uint16(payload[3:5])
-	reportInterval := binary.LittleEndian.Uint32(payload[5:9])
-	batchInterval := binary.LittleEndian.Uint32(payload[9:13])
-	sensorSpecific := binary.LittleEndian.Uint32(payload[13:17])
-
-	// If we're waiting for this sensor's config, store it
-	if s.pendingConfigRequest && s.pendingConfigSensor == sensorID {
-		s.receivedConfig = SensorConfig{
-			ChangeSensitivityEnabled:  flags&featChangeSensitivityEnabled != 0,
-			ChangeSensitivityRelative: flags&featChangeSensitivityRelative != 0,
-			WakeupEnabled:             flags&featWakeEnabled != 0,
-			AlwaysOnEnabled:           flags&featAlwaysOnEnabled != 0,
-			ChangeSensitivity:         changeSensitivity,
-			ReportInterval:            reportInterval,
-			BatchInterval:             batchInterval,
-			SensorSpecific:            sensorSpecific,
-		}
-		s.configReady = true
-	}
-}
-
-// handleSensor processes sensor report messages.
-// The payload can contain multiple sensor reports batched together.
-func (s *sh2Protocol) handleSensor(payload []byte, timestamp uint32) {
-	cursor := 0
-	var referenceDelta uint32
-
-	for cursor < len(payload) {
-		if cursor >= len(payload) {
-			break
-		}
-
-		reportID := payload[cursor]
-		reportLen := getReportLen(reportID)
-
-		if reportLen == 0 {
-			// Unknown report ID
-			break
-		}
-
-		if cursor+reportLen > len(payload) {
-			// Not enough data for this report
-			break
-		}
-
-		// Handle special report types
-		switch reportID {
-		case 0xFB: // SENSORHUB_BASE_TIMESTAMP_REF
-			if reportLen >= 5 {
-				// Extract timebase (little-endian uint32)
-				timebase := binary.LittleEndian.Uint32(payload[cursor+1 : cursor+5])
-				referenceDelta = -timebase // Store negative for delta calculation
-			}
-
-		case 0xFA: // SENSORHUB_TIMESTAMP_REBASE
-			if reportLen >= 5 {
-				timebase := binary.LittleEndian.Uint32(payload[cursor+1 : cursor+5])
-				referenceDelta += timebase
-			}
-
-		case 0xF1: // SENSORHUB_FLUSH_COMPLETED
-			// Route to control handler
-			s.handleControl(payload[cursor:cursor+reportLen], timestamp)
-
-		default:
-			// Regular sensor report
-			value, ok := decodeSensor(payload[cursor:cursor+reportLen], timestamp)
-			if ok {
-				s.device.enqueue(value)
-			}
-		}
-
-		cursor += reportLen
-	}
-} // handleExecutable processes executable channel messages.
-func (s *sh2Protocol) handleExecutable(payload []byte, timestamp uint32) {
-	if len(payload) == 0 {
-		return
-	}
-
-	reportID := payload[0]
-
-	switch reportID {
-	case execDeviceRespResetComplete:
-		s.device.lastReset = true
-	}
-}
@@ -1,83 +0,0 @@
-// SHTP specification found at https://www.ceva-ip.com/wp-content/uploads/SH-2-SHTP-Reference-Manual.pdf
-
-package bno08x
-
-import "encoding/binary"
-
-// shtpHandler is a callback for handling SHTP channel data.
-type shtpHandler func(payload []byte, timestamp uint32)
-
-// shtp implements the Sensor Hub Transport Protocol layer.
-type shtp struct {
-	hal      *hal
-	handlers map[uint8]shtpHandler
-	seq      [8]uint8
-	rx       [maxTransferIn]byte  // Reusable receive buffer
-	tx       [maxTransferOut]byte // Reusable transmit buffer
-}
-
-func newSHTP(hal *hal) *shtp {
-	return &shtp{
-		hal:      hal,
-		handlers: make(map[uint8]shtpHandler),
-	}
-}
-
-// register registers a handler for a specific SHTP channel.
-func (s *shtp) register(channel uint8, handler shtpHandler) {
-	if handler == nil {
-		delete(s.handlers, channel)
-		return
-	}
-	s.handlers[channel] = handler
-}
-
-// send transmits a payload on the specified channel.
-func (s *shtp) send(channel uint8, payload []byte) error {
-	total := len(payload) + shtpHeaderLength
-	if total > maxTransferOut {
-		return errFrameTooLarge
-	}
-
-	// Use pre-allocated transmit buffer to avoid allocations
-	frame := s.tx[:total]
-	binary.LittleEndian.PutUint16(frame[0:2], uint16(total))
-	frame[2] = channel
-	frame[3] = s.seq[channel]
-	s.seq[channel]++
-	copy(frame[shtpHeaderLength:], payload)
-
-	_, err := s.hal.write(frame)
-	return err
-}
-
-// poll checks for and processes incoming SHTP packets.
-// Returns true if a packet was processed, false if no data available.
-func (s *shtp) poll() (bool, error) {
-	n, timestamp, err := s.hal.read(s.rx[:])
-	if err != nil {
-		return false, err
-	}
-	if n == 0 {
-		return false, nil
-	}
-
-	packet := s.rx[:n]
-	length := int(binary.LittleEndian.Uint16(packet[0:2]) & ^uint16(continueMask))
-	if length > n {
-		length = n
-	}
-	if length < shtpHeaderLength {
-		return false, nil
-	}
-
-	channel := packet[2]
-	// seq := packet[3] // sequence number, not currently validated
-	payload := packet[shtpHeaderLength:length]
-
-	if handler := s.handlers[channel]; handler != nil {
-		handler(payload, timestamp)
-	}
-
-	return true, nil
-}
@@ -1,572 +0,0 @@
-package bno08x
-
-// SensorID identifies a specific sensor type.
-type SensorID uint8
-
-// Sensor IDs as defined in the SH-2 specification.
-const (
-	SensorRawAccelerometer           SensorID = 0x14
-	SensorAccelerometer              SensorID = 0x01
-	SensorLinearAcceleration         SensorID = 0x04
-	SensorGravity                    SensorID = 0x06
-	SensorRawGyroscope               SensorID = 0x15
-	SensorGyroscope                  SensorID = 0x02
-	SensorGyroscopeUncalibrated      SensorID = 0x07
-	SensorRawMagnetometer            SensorID = 0x16
-	SensorMagneticField              SensorID = 0x03
-	SensorMagneticFieldUncalibrated  SensorID = 0x0F
-	SensorRotationVector             SensorID = 0x05
-	SensorGameRotationVector         SensorID = 0x08
-	SensorGeomagneticRotationVector  SensorID = 0x09
-	SensorPressure                   SensorID = 0x0A
-	SensorAmbientLight               SensorID = 0x0B
-	SensorHumidity                   SensorID = 0x0C
-	SensorProximity                  SensorID = 0x0D
-	SensorTemperature                SensorID = 0x0E
-	SensorReserved                   SensorID = 0x17
-	SensorTapDetector                SensorID = 0x10
-	SensorStepDetector               SensorID = 0x18
-	SensorStepCounter                SensorID = 0x11
-	SensorSignificantMotion          SensorID = 0x12
-	SensorStabilityClassifier        SensorID = 0x13
-	SensorShakeDetector              SensorID = 0x19
-	SensorFlipDetector               SensorID = 0x1A
-	SensorPickupDetector             SensorID = 0x1B
-	SensorStabilityDetector          SensorID = 0x1C
-	SensorPersonalActivityClassifier SensorID = 0x1E
-	SensorSleepDetector              SensorID = 0x1F
-	SensorTiltDetector               SensorID = 0x20
-	SensorPocketDetector             SensorID = 0x21
-	SensorCircleDetector             SensorID = 0x22
-	SensorHeartRateMonitor           SensorID = 0x23
-	SensorARVRStabilizedRV           SensorID = 0x28
-	SensorARVRStabilizedGRV          SensorID = 0x29
-	SensorGyroIntegratedRV           SensorID = 0x2A
-	SensorIZROMotionRequest          SensorID = 0x2B
-	SensorMaxID                      SensorID = 0x2B
-)
-
-// ProductID contains firmware information from the sensor.
-type ProductID struct {
-	ResetCause   uint8
-	VersionMajor uint8
-	VersionMinor uint8
-	PartNumber   uint32
-	BuildNumber  uint32
-	VersionPatch uint16
-	Reserved0    uint8
-	Reserved1    uint8
-}
-
-// ProductIDs holds all product ID entries returned by the sensor.
-type ProductIDs struct {
-	Entries    [5]ProductID
-	NumEntries uint8
-}
-
-// Vector3 represents a 3D vector.
-type Vector3 struct {
-	X float32
-	Y float32
-	Z float32
-}
-
-// Quaternion represents a quaternion in (real, i, j, k) format.
-// Note: This maps to (w, x, y, z) convention where w=real, x=i, y=j, z=k.
-type Quaternion struct {
-	Real float32
-	I    float32
-	J    float32
-	K    float32
-}
-
-// RawVector3 contains raw ADC counts with timestamp.
-type RawVector3 struct {
-	X         int16
-	Y         int16
-	Z         int16
-	Timestamp uint32
-}
-
-// RawGyroscope contains raw gyro readings with temperature and timestamp.
-type RawGyroscope struct {
-	X           int16
-	Y           int16
-	Z           int16
-	Temperature int16
-	Timestamp   uint32
-}
-
-// GyroscopeUncalibrated contains uncalibrated gyroscope data with bias.
-type GyroscopeUncalibrated struct {
-	X     float32
-	Y     float32
-	Z     float32
-	BiasX float32
-	BiasY float32
-	BiasZ float32
-}
-
-// MagneticFieldUncalibrated contains uncalibrated magnetometer data with bias.
-type MagneticFieldUncalibrated struct {
-	X     float32
-	Y     float32
-	Z     float32
-	BiasX float32
-	BiasY float32
-	BiasZ float32
-}
-
-// TapDetector contains tap/double-tap detection flags.
-type TapDetector struct {
-	Flags uint8
-}
-
-// StepDetector contains step detection with latency.
-type StepDetector struct {
-	Latency uint32
-}
-
-// StepCounter contains step count with latency.
-type StepCounter struct {
-	Count   uint16
-	Latency uint32
-}
-
-// SignificantMotion indicates significant motion was detected.
-type SignificantMotion struct {
-	Motion uint16
-}
-
-// ActivityClassification contains activity classification data.
-type ActivityClassification struct {
-	Page            uint8
-	MostLikelyState uint8
-	Classification  [10]uint8
-	EndOfPage       uint8
-}
-
-// ShakeDetector contains shake detection data.
-type ShakeDetector struct {
-	Shake uint16
-}
-
-// StabilityClassifier contains stability classification.
-type StabilityClassifier struct {
-	Classification uint8
-}
-
-// PersonalActivityClassifier contains personal activity data.
-type PersonalActivityClassifier struct {
-	Page            uint8
-	MostLikelyState uint8
-	Confidence      [10]uint8
-	EndOfPage       uint8
-}
-
-// SensorValue contains decoded sensor data for all sensor types.
-type SensorValue struct {
-	id        SensorID
-	status    uint8
-	sequence  uint8
-	delay     uint8
-	timestamp uint64
-
-	// Orientation data (quaternions)
-	quaternion         Quaternion
-	quaternionAccuracy float32
-
-	// Linear measurements
-	accelerometer      Vector3
-	linearAcceleration Vector3
-	gravity            Vector3
-	gyroscope          Vector3
-	gyroscopeUncal     GyroscopeUncalibrated
-	magneticField      Vector3
-	magneticFieldUncal MagneticFieldUncalibrated
-
-	// Raw sensor data
-	rawAccelerometer RawVector3
-	rawGyroscope     RawGyroscope
-	rawMagnetometer  RawVector3
-
-	// Environmental sensors
-	pressure     float32 // hPa
-	ambientLight float32 // lux
-	humidity     float32 // %
-	proximity    float32 // cm
-	temperature  float32 // °C
-
-	// Activity detection
-	tapDetector                TapDetector
-	stepCounter                StepCounter
-	stepDetector               StepDetector
-	significantMotion          SignificantMotion
-	shakeDetector              ShakeDetector
-	flipDetector               uint16
-	stabilityClassifier        StabilityClassifier
-	stabilityDetector          uint8
-	activityClassifier         ActivityClassification
-	personalActivityClassifier PersonalActivityClassifier
-	sleepDetector              uint8
-	tiltDetector               uint8
-	pocketDetector             uint8
-	circleDetector             uint8
-	heartRateMonitor           uint16
-}
-
-// SensorConfig holds configuration settings for a sensor.
-type SensorConfig struct {
-	ChangeSensitivityEnabled  bool
-	ChangeSensitivityRelative bool
-	WakeupEnabled             bool
-	AlwaysOnEnabled           bool
-	ChangeSensitivity         uint16
-	ReportInterval            uint32 // microseconds
-	BatchInterval             uint32 // microseconds
-	SensorSpecific            uint32
-}
-
-// Error represents a driver error.
-type Error string
-
-func (e Error) Error() string { return string(e) }
-
-// Error constants.
-var (
-	errBufferTooSmall = Error("bno08x: buffer too small")
-	errNoEvent        = Error("bno08x: no sensor event available")
-	errTimeout        = Error("bno08x: operation timed out")
-	errFrameTooLarge  = Error("bno08x: frame exceeds maximum size")
-	errNoBus          = Error("bno08x: I2C bus not configured")
-	errInvalidParam   = Error("bno08x: invalid parameter")
-	errHubError       = Error("bno08x: sensor hub error")
-	errIO             = Error("bno08x: I/O error")
-)
-
-// Metadata accessor methods (always available for any sensor type)
-
-// ID returns the sensor ID.
-func (sv SensorValue) ID() SensorID {
-	return sv.id
-}
-
-// Status returns the sensor status flags.
-func (sv SensorValue) Status() uint8 {
-	return sv.status
-}
-
-// Sequence returns the sequence number.
-func (sv SensorValue) Sequence() uint8 {
-	return sv.sequence
-}
-
-// Delay returns the sensor delay value.
-func (sv SensorValue) Delay() uint8 {
-	return sv.delay
-}
-
-// Timestamp returns the sensor timestamp.
-func (sv SensorValue) Timestamp() uint64 {
-	return sv.timestamp
-}
-
-// Orientation data accessor methods
-
-// Quaternion returns the quaternion value for rotation vector sensors.
-// Panics if called on a sensor type that doesn't provide quaternion data.
-func (sv SensorValue) Quaternion() Quaternion {
-	switch sv.id {
-	case SensorRotationVector, SensorGameRotationVector, SensorGeomagneticRotationVector,
-		SensorARVRStabilizedRV, SensorARVRStabilizedGRV, SensorGyroIntegratedRV:
-		return sv.quaternion
-	default:
-		panic("bno08x: Quaternion() called on non-rotation sensor type")
-	}
-}
-
-// QuaternionAccuracy returns the quaternion accuracy estimate.
-// Panics if called on a sensor type that doesn't provide quaternion accuracy.
-func (sv SensorValue) QuaternionAccuracy() float32 {
-	switch sv.id {
-	case SensorRotationVector, SensorGeomagneticRotationVector, SensorARVRStabilizedRV:
-		return sv.quaternionAccuracy
-	default:
-		panic("bno08x: QuaternionAccuracy() called on sensor type without accuracy data")
-	}
-}
-
-// Linear measurement accessor methods
-
-// Accelerometer returns the accelerometer vector.
-// Panics if called on a sensor type other than SensorAccelerometer.
-func (sv SensorValue) Accelerometer() Vector3 {
-	if sv.id != SensorAccelerometer {
-		panic("bno08x: Accelerometer() called on non-accelerometer sensor type")
-	}
-	return sv.accelerometer
-}
-
-// LinearAcceleration returns the linear acceleration vector.
-// Panics if called on a sensor type other than SensorLinearAcceleration.
-func (sv SensorValue) LinearAcceleration() Vector3 {
-	if sv.id != SensorLinearAcceleration {
-		panic("bno08x: LinearAcceleration() called on wrong sensor type")
-	}
-	return sv.linearAcceleration
-}
-
-// Gravity returns the gravity vector.
-// Panics if called on a sensor type other than SensorGravity.
-func (sv SensorValue) Gravity() Vector3 {
-	if sv.id != SensorGravity {
-		panic("bno08x: Gravity() called on non-gravity sensor type")
-	}
-	return sv.gravity
-}
-
-// Gyroscope returns the gyroscope vector.
-// Panics if called on a sensor type other than SensorGyroscope.
-func (sv SensorValue) Gyroscope() Vector3 {
-	if sv.id != SensorGyroscope {
-		panic("bno08x: Gyroscope() called on non-gyroscope sensor type")
-	}
-	return sv.gyroscope
-}
-
-// GyroscopeUncal returns the uncalibrated gyroscope data.
-// Panics if called on a sensor type other than SensorGyroscopeUncalibrated.
-func (sv SensorValue) GyroscopeUncal() GyroscopeUncalibrated {
-	if sv.id != SensorGyroscopeUncalibrated {
-		panic("bno08x: GyroscopeUncal() called on wrong sensor type")
-	}
-	return sv.gyroscopeUncal
-}
-
-// MagneticField returns the magnetic field vector.
-// Panics if called on a sensor type other than SensorMagneticField.
-func (sv SensorValue) MagneticField() Vector3 {
-	if sv.id != SensorMagneticField {
-		panic("bno08x: MagneticField() called on wrong sensor type")
-	}
-	return sv.magneticField
-}
-
-// MagneticFieldUncal returns the uncalibrated magnetic field data.
-// Panics if called on a sensor type other than SensorMagneticFieldUncalibrated.
-func (sv SensorValue) MagneticFieldUncal() MagneticFieldUncalibrated {
-	if sv.id != SensorMagneticFieldUncalibrated {
-		panic("bno08x: MagneticFieldUncal() called on wrong sensor type")
-	}
-	return sv.magneticFieldUncal
-}
-
-// Raw sensor data accessor methods
-
-// RawAccelerometer returns the raw accelerometer data.
-// Panics if called on a sensor type other than SensorRawAccelerometer.
-func (sv SensorValue) RawAccelerometer() RawVector3 {
-	if sv.id != SensorRawAccelerometer {
-		panic("bno08x: RawAccelerometer() called on wrong sensor type")
-	}
-	return sv.rawAccelerometer
-}
-
-// RawGyroscope returns the raw gyroscope data.
-// Panics if called on a sensor type other than SensorRawGyroscope.
-func (sv SensorValue) RawGyroscope() RawGyroscope {
-	if sv.id != SensorRawGyroscope {
-		panic("bno08x: RawGyroscope() called on wrong sensor type")
-	}
-	return sv.rawGyroscope
-}
-
-// RawMagnetometer returns the raw magnetometer data.
-// Panics if called on a sensor type other than SensorRawMagnetometer.
-func (sv SensorValue) RawMagnetometer() RawVector3 {
-	if sv.id != SensorRawMagnetometer {
-		panic("bno08x: RawMagnetometer() called on wrong sensor type")
-	}
-	return sv.rawMagnetometer
-}
-
-// Environmental sensor accessor methods
-
-// Pressure returns the pressure reading in hPa.
-// Panics if called on a sensor type other than SensorPressure.
-func (sv SensorValue) Pressure() float32 {
-	if sv.id != SensorPressure {
-		panic("bno08x: Pressure() called on non-pressure sensor type")
-	}
-	return sv.pressure
-}
-
-// AmbientLight returns the ambient light reading in lux.
-// Panics if called on a sensor type other than SensorAmbientLight.
-func (sv SensorValue) AmbientLight() float32 {
-	if sv.id != SensorAmbientLight {
-		panic("bno08x: AmbientLight() called on wrong sensor type")
-	}
-	return sv.ambientLight
-}
-
-// Humidity returns the humidity reading in percent.
-// Panics if called on a sensor type other than SensorHumidity.
-func (sv SensorValue) Humidity() float32 {
-	if sv.id != SensorHumidity {
-		panic("bno08x: Humidity() called on non-humidity sensor type")
-	}
-	return sv.humidity
-}
-
-// Proximity returns the proximity reading in cm.
-// Panics if called on a sensor type other than SensorProximity.
-func (sv SensorValue) Proximity() float32 {
-	if sv.id != SensorProximity {
-		panic("bno08x: Proximity() called on non-proximity sensor type")
-	}
-	return sv.proximity
-}
-
-// Temperature returns the temperature reading in °C.
-// Panics if called on a sensor type other than SensorTemperature.
-func (sv SensorValue) Temperature() float32 {
-	if sv.id != SensorTemperature {
-		panic("bno08x: Temperature() called on non-temperature sensor type")
-	}
-	return sv.temperature
-}
-
-// Activity detection accessor methods
-
-// TapDetector returns the tap detector data.
-// Panics if called on a sensor type other than SensorTapDetector.
-func (sv SensorValue) TapDetector() TapDetector {
-	if sv.id != SensorTapDetector {
-		panic("bno08x: TapDetector() called on wrong sensor type")
-	}
-	return sv.tapDetector
-}
-
-// StepCounter returns the step counter value.
-// Panics if called on a sensor type other than SensorStepCounter.
-func (sv SensorValue) StepCounter() StepCounter {
-	if sv.id != SensorStepCounter {
-		panic("bno08x: StepCounter() called on wrong sensor type")
-	}
-	return sv.stepCounter
-}
-
-// StepDetector returns the step detector data.
-// Panics if called on a sensor type other than SensorStepDetector.
-func (sv SensorValue) StepDetector() StepDetector {
-	if sv.id != SensorStepDetector {
-		panic("bno08x: StepDetector() called on wrong sensor type")
-	}
-	return sv.stepDetector
-}
-
-// SignificantMotion returns the significant motion data.
-// Panics if called on a sensor type other than SensorSignificantMotion.
-func (sv SensorValue) SignificantMotion() SignificantMotion {
-	if sv.id != SensorSignificantMotion {
-		panic("bno08x: SignificantMotion() called on wrong sensor type")
-	}
-	return sv.significantMotion
-}
-
-// ShakeDetector returns the shake detector data.
-// Panics if called on a sensor type other than SensorShakeDetector.
-func (sv SensorValue) ShakeDetector() ShakeDetector {
-	if sv.id != SensorShakeDetector {
-		panic("bno08x: ShakeDetector() called on wrong sensor type")
-	}
-	return sv.shakeDetector
-}
-
-// FlipDetector returns the flip detector data.
-// Panics if called on a sensor type other than SensorFlipDetector.
-func (sv SensorValue) FlipDetector() uint16 {
-	if sv.id != SensorFlipDetector {
-		panic("bno08x: FlipDetector() called on wrong sensor type")
-	}
-	return sv.flipDetector
-}
-
-// StabilityClassifier returns the stability classifier data.
-// Panics if called on a sensor type other than SensorStabilityClassifier.
-func (sv SensorValue) StabilityClassifier() StabilityClassifier {
-	if sv.id != SensorStabilityClassifier {
-		panic("bno08x: StabilityClassifier() called on wrong sensor type")
-	}
-	return sv.stabilityClassifier
-}
-
-// StabilityDetector returns the stability detector value.
-// Panics if called on a sensor type other than SensorStabilityDetector.
-func (sv SensorValue) StabilityDetector() uint8 {
-	if sv.id != SensorStabilityDetector {
-		panic("bno08x: StabilityDetector() called on wrong sensor type")
-	}
-	return sv.stabilityDetector
-}
-
-// ActivityClassifier returns the activity classification data.
-// Note: This field appears unused in decode.go, keeping for API compatibility.
-func (sv SensorValue) ActivityClassifier() ActivityClassification {
-	return sv.activityClassifier
-}
-
-// PersonalActivityClassifier returns the personal activity classifier data.
-// Panics if called on a sensor type other than SensorPersonalActivityClassifier.
-func (sv SensorValue) PersonalActivityClassifier() PersonalActivityClassifier {
-	if sv.id != SensorPersonalActivityClassifier {
-		panic("bno08x: PersonalActivityClassifier() called on wrong sensor type")
-	}
-	return sv.personalActivityClassifier
-}
-
-// SleepDetector returns the sleep detector value.
-// Panics if called on a sensor type other than SensorSleepDetector.
-func (sv SensorValue) SleepDetector() uint8 {
-	if sv.id != SensorSleepDetector {
-		panic("bno08x: SleepDetector() called on wrong sensor type")
-	}
-	return sv.sleepDetector
-}
-
-// TiltDetector returns the tilt detector value.
-// Panics if called on a sensor type other than SensorTiltDetector.
-func (sv SensorValue) TiltDetector() uint8 {
-	if sv.id != SensorTiltDetector {
-		panic("bno08x: TiltDetector() called on wrong sensor type")
-	}
-	return sv.tiltDetector
-}
-
-// PocketDetector returns the pocket detector value.
-// Panics if called on a sensor type other than SensorPocketDetector.
-func (sv SensorValue) PocketDetector() uint8 {
-	if sv.id != SensorPocketDetector {
-		panic("bno08x: PocketDetector() called on wrong sensor type")
-	}
-	return sv.pocketDetector
-}
-
-// CircleDetector returns the circle detector value.
-// Panics if called on a sensor type other than SensorCircleDetector.
-func (sv SensorValue) CircleDetector() uint8 {
-	if sv.id != SensorCircleDetector {
-		panic("bno08x: CircleDetector() called on wrong sensor type")
-	}
-	return sv.circleDetector
-}
-
-// HeartRateMonitor returns the heart rate monitor value.
-// Panics if called on a sensor type other than SensorHeartRateMonitor.
-func (sv SensorValue) HeartRateMonitor() uint16 {
-	if sv.id != SensorHeartRateMonitor {
-		panic("bno08x: HeartRateMonitor() called on wrong sensor type")
-	}
-	return sv.heartRateMonitor
-}
@@ -2,22 +2,22 @@
 package buzzer // import "tinygo.org/x/drivers/buzzer"

 import (
-	"time"
+	"machine"

-	"tinygo.org/x/drivers/internal/pin"
+	"time"
 )

 // Device wraps a GPIO connection to a buzzer.
 type Device struct {
-	pin  pin.OutputFunc
+	pin  machine.Pin
 	High bool
 	BPM  float64
 }

 // New returns a new buzzer driver given which pin to use
-func New(pin pin.Output) Device {
+func New(pin machine.Pin) Device {
 	return Device{
-		pin:  pin.Set,
+		pin:  pin,
 		High: false,
 		BPM:  96.0,
 	}
@@ -25,14 +25,14 @@ func New(pin pin.Output) Device {

 // On sets the buzzer to a high state.
 func (l *Device) On() (err error) {
-	l.pin.High()
+	l.pin.Set(true)
 	l.High = true
 	return
 }

 // Off sets the buzzer to a low state.
 func (l *Device) Off() (err error) {
-	l.pin.Low()
+	l.pin.Set(false)
 	l.High = false
 	return
 }
@@ -1,711 +0,0 @@
-// Package comboat implements WiFi driver for the Aithinker-Combo-AT WiFi
-// device found on the Elecrow W5 rp2040 and rp2350 devices.  Ths WiFi device
-// is a RTL8720d variant.  The driver interface is via AT command set over UART
-// (see reference docs below).
-//
-// NOTE: the driver doesn't support UDP/TCP server connections in STA mode,
-// currently.  UDP/TCP/TLS client connections are supported in STA mode.
-//
-// https://aithinker-combo-guide.readthedocs.io/en/latest/docs/instruction/index.html
-// https://aithinker-combo-guide.readthedocs.io/en/latest/docs/command-set/index.html
-// https://aithinker-combo-guide.readthedocs.io/en/latest/docs/command-examples/index.html
-
-package comboat // import "tinygo.org/x/drivers/comboat"
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"machine"
-	"net"
-	"net/netip"
-	"strconv"
-	"sync"
-	"time"
-
-	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/netdev"
-	"tinygo.org/x/drivers/netlink"
-)
-
-type Config struct {
-	BaudRate uint32
-	Uart     *machine.UART
-	Tx       machine.Pin
-	Rx       machine.Pin
-}
-
-type socket struct {
-	protocol  int
-	id        string
-	rx        chan []byte
-	remainder []byte
-	laddr     netip.AddrPort // Set in Bind()
-}
-
-type device struct {
-	cfg     *Config
-	uart    *machine.UART
-	uartMu  sync.Mutex
-	mac     net.HardwareAddr
-	ip      netip.Addr
-	gateway netip.Addr
-	buf     [1500]byte
-	pos     int
-	last    []byte
-	ok      chan bool
-	txReady chan bool
-	accept  chan string
-	err     chan error
-	sockets [8]*socket
-	sync.Mutex
-}
-
-func NewDevice(cfg *Config) *device {
-	return &device{
-		cfg:     cfg,
-		ok:      make(chan bool),
-		txReady: make(chan bool),
-		accept:  make(chan string),
-		err:     make(chan error),
-	}
-}
-
-func logDebug(msg string) {
-	//println("[DEBUG] " + msg)
-}
-
-func logError(msg string) {
-	println("[ERROR] " + msg)
-}
-
-func split(resp []byte, part int, del, on string) string {
-	parts := bytes.Split(resp, []byte(del))
-	if part >= len(parts) {
-		return "Split parts error getting " + on
-	}
-	return string(parts[part])
-}
-
-func (d *device) getFWVersion() string {
-	return split(d.last, 1, ":", "FW version")
-}
-
-func (d *device) saveMAC() {
-	raw := split(d.last, 1, ":", "MAC")
-	if len(raw) > 11 {
-		macStr := fmt.Sprintf("%s:%s:%s:%s:%s:%s",
-			raw[0:2], raw[2:4], raw[4:6],
-			raw[6:8], raw[8:10], raw[10:12])
-		d.mac, _ = net.ParseMAC(macStr)
-	}
-}
-
-var countryCodes = map[int]string{
-	1:  "JP Japan",
-	2:  "American Samoa",
-	3:  "CA Canada",
-	4:  "US",
-	5:  "CN China",
-	6:  "Hong Kong, China",
-	7:  "Taiwan, China",
-	8:  "MO Macau, China",
-	9:  "IL Israel",
-	10: "Singapore",
-	11: "KR South Korea",
-	12: "TR Türkiye",
-	13: "AU Australia",
-	14: "ZA South Africa",
-	15: "BR Brazil",
-}
-
-func (d *device) getCountry() (code string) {
-	code = split(d.last, 1, ":", "county code")
-	codeNum, err := strconv.Atoi(code)
-	if err != nil {
-		return
-	}
-	if val, ok := countryCodes[codeNum]; ok {
-		code = val
-	}
-	return
-}
-
-func (d *device) saveIP() {
-	ipStr := split(d.last, 7, ",", "IP address")
-	gwStr := split(d.last, 8, ",", "gateway address")
-	d.ip, _ = netip.ParseAddr(ipStr)
-	d.gateway, _ = netip.ParseAddr(gwStr)
-}
-
-func (d *device) execute(cmd string, timeout int) (err error) {
-	logDebug("EXECUTE " + cmd)
-
-	d.uartMu.Lock()
-	_, err = d.uart.Write([]byte(cmd + "\r\n"))
-	d.uartMu.Unlock()
-
-	if err != nil {
-		return
-	}
-
-	t := time.NewTicker(time.Duration(timeout) * time.Millisecond)
-	defer t.Stop()
-
-	select {
-	case <-t.C:
-		return errors.New("Timed out")
-	case <-d.ok:
-		return
-	case err = <-d.err:
-		return
-	}
-}
-
-func (d *device) send(cmd string, timeout int) (err error) {
-	logDebug("EXECUTE " + cmd)
-
-	d.uartMu.Lock()
-	_, err = d.uart.Write([]byte(cmd + "\r\n"))
-	d.uartMu.Unlock()
-
-	if err != nil {
-		return
-	}
-
-	t := time.NewTicker(time.Duration(timeout) * time.Millisecond)
-	defer t.Stop()
-
-	select {
-	case <-t.C:
-		return errors.New("Timed out")
-	case <-d.txReady:
-		return
-	case err = <-d.err:
-		return
-	}
-}
-
-func (d *device) findSocket(id string) (*socket, error) {
-	for _, s := range d.sockets {
-		if s.id == id {
-			return s, nil
-		}
-	}
-	return nil, errors.New("Socket not found with id: " + id)
-}
-
-func (d *device) getSocket(sockfd int) (*socket, error) {
-	if sockfd < 0 || sockfd+1 > len(d.sockets) {
-		return nil, netdev.ErrInvalidSocketFd
-	}
-	if d.sockets[sockfd] == nil {
-		return nil, netdev.ErrInvalidSocketFd
-	}
-	return d.sockets[sockfd], nil
-}
-
-func (d *device) handle(event []byte) {
-	logDebug("GOT EVENT " + string(event))
-	switch {
-
-	// SocketDisconnect,<id>
-	case bytes.HasPrefix(event, []byte("SocketDisconnect")):
-		id := split(event, 1, ",", "SocketDisconnect")
-		s, err := d.findSocket(id)
-		if err == nil {
-			close(s.rx) // Sends io.EOF
-		}
-
-	// SocketSeed,<id>,<server id>
-	case bytes.HasPrefix(event, []byte("SocketSeed,2,1")):
-		//d.uart.Write([]byte("AT+SOCKET?" + "\r\n"))
-	}
-}
-
-func (d *device) processUART() {
-
-	if d.pos == 1 && d.buf[0] == '>' {
-		d.pos = 0
-		logDebug("GOT >")
-		d.txReady <- true
-	}
-
-	sofar := d.buf[:d.pos]
-
-	if !bytes.HasSuffix(sofar, []byte("\r\n")) {
-		return
-	}
-
-	// Strip CR/LF off end
-	sofar = sofar[:len(sofar)-2]
-
-	switch {
-
-	case bytes.HasPrefix(sofar, []byte("+EVENT:SocketDown")):
-		// +EVENT:SocketDown,<id>,<length>,<data>
-		parts := bytes.SplitN(sofar, []byte(","), 4)
-		if len(parts) != 4 {
-			logError("Error parsing +EVENT:SocketDown: " + string(sofar))
-			d.pos = 0
-			return
-		}
-		id := string(parts[1])
-		length, err := strconv.Atoi(string(parts[2]))
-		if err != nil {
-			logError("Error parsing length from: " + string(parts[2]))
-			d.pos = 0
-			return
-		}
-		if length != len(parts[3]) {
-			// This can happen if <data> actually contains a CR/LF.
-			// Return without resetting d.pos to continue reading
-			// in the full <data>.
-			return
-		}
-		s, err := d.findSocket(id)
-		if err != nil {
-			logError(err.Error())
-			d.pos = 0
-			return
-		}
-		logDebug("GOT +EVENT:SocketDown," + id + "," + string(parts[2]))
-		d.pos = 0
-		data := make([]byte, len(parts[3]))
-		copy(data, parts[3])
-		s.rx <- data
-
-	case bytes.HasPrefix(sofar, []byte("OK")):
-		d.pos = 0
-		logDebug("GOT OK")
-		d.ok <- true
-
-	case bytes.HasPrefix(sofar, []byte("ERROR")):
-		d.pos = 0
-		logDebug("GOT ERROR")
-		errStr := getErrStr(d.last)
-		d.err <- errors.New(errStr)
-
-	case bytes.HasPrefix(sofar, []byte("+EVENT:")):
-		d.pos = 0
-		event := sofar[len("+EVENT:"):]
-		d.handle(event)
-
-	default:
-		// Catch everything else and store in d.last
-		d.pos = 0
-		size := len(sofar)
-		if size > 0 {
-			d.last = make([]byte, size)
-			copy(d.last, sofar[:size])
-			logDebug("GOT LINE " + string(d.last))
-		}
-	}
-}
-
-func (d *device) serviceUART() {
-	for {
-		d.uartMu.Lock()
-		for d.uart.Buffered() > 0 {
-			if d.pos >= len(d.buf) {
-				println("Trying to write past buffer")
-				d.pos = 0
-				break
-			}
-			var err error
-			d.buf[d.pos], err = d.uart.ReadByte()
-			if err == nil {
-				d.pos++
-				d.processUART()
-			}
-		}
-		d.uartMu.Unlock()
-		time.Sleep(10 * time.Millisecond)
-	}
-}
-
-func (d *device) NetConnect(params *netlink.ConnectParams) error {
-
-	d.Lock()
-	defer d.Unlock()
-
-	d.uart = d.cfg.Uart
-	d.uart.Configure(machine.UARTConfig{
-		BaudRate: d.cfg.BaudRate,
-		TX:       d.cfg.Tx,
-		RX:       d.cfg.Rx,
-	})
-
-	go d.serviceUART()
-
-	fmt.Printf("\r\n")
-	fmt.Printf("TinyGo Combo-AT WiFi network device driver\r\n")
-
-	fmt.Printf("\r\n")
-	fmt.Printf("Driver version            : %s\r\n", drivers.Version)
-
-	if len(params.Ssid) == 0 {
-		return netlink.ErrMissingSSID
-	}
-
-	// AT Test to see if device is alive
-	if err := d.execute("AT", 1000); err != nil {
-		return err
-	}
-
-	// Disable echo
-	if err := d.execute("ATE0", 1000); err != nil {
-		return err
-	}
-
-	// Get FW version
-	if err := d.execute("AT+GMR", 1000); err != nil {
-		return err
-	}
-	fmt.Printf("Combo-AT firmware version : %s\r\n", d.getFWVersion())
-
-	// Get/save MAC addresses
-	if err := d.execute("AT+CIPSTAMAC_DEF?", 1000); err != nil {
-		return err
-	}
-	d.saveMAC()
-	fmt.Printf("MAC address               : %s\r\n", d.mac.String())
-
-	// Set country code US
-	if err := d.execute("AT+WCOUNTRY=4", 1000); err != nil {
-		return err
-	}
-
-	// Get country code
-	if err := d.execute("AT+WCOUNTRY?", 1000); err != nil {
-		return err
-	}
-	fmt.Printf("WiFi country code         : %s\r\n", d.getCountry())
-
-	// Set Wi-Fi working mode to STA and save to flash
-	if err := d.execute("AT+WMODE=1,1", 1000); err != nil {
-		return err
-	}
-
-	// Connect to Wifi AP (keep trying until connected)
-	fmt.Printf("\r\n")
-	cmd := "AT+WJAP=" + params.Ssid + "," + params.Passphrase
-
-	for {
-		fmt.Printf("Connecting to WiFi SSID '%s'...", params.Ssid)
-		if err := d.execute(cmd, 20000); err != nil {
-			fmt.Printf("FAILED (%s)\r\n", err.Error())
-			continue
-		}
-		break
-	}
-
-	fmt.Printf("CONNECTED\r\n")
-
-	// Automatically reconnect to Wi-Fi after power on
-	if err := d.execute("AT+WAUTOCONN=1", 1000); err != nil {
-		return err
-	}
-
-	// Get/save IP/gateway addresses
-	if err := d.execute("AT+WJAP?", 1000); err != nil {
-		return err
-	}
-	d.saveIP()
-
-	fmt.Printf("\r\n")
-	fmt.Printf("DHCP-assigned IP          : %s\r\n", d.ip)
-	fmt.Printf("DHCP-assigned gateway     : %s\r\n", d.gateway)
-	fmt.Printf("\r\n")
-
-	// Set socket receiving mode to active
-	if err := d.execute("AT+SOCKETRECVCFG=1", 1000); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (d *device) NetDisconnect() {
-	d.Lock()
-	defer d.Unlock()
-	// Disconnect from WiFi AP
-	d.execute("AT+WDISCONNECT", 1000)
-}
-
-func (d *device) NetNotify(cb func(netlink.Event)) {
-	fmt.Printf("\r\n%s\r\n", netlink.ErrNotSupported)
-}
-
-func (d *device) GetHardwareAddr() (net.HardwareAddr, error) {
-	return d.mac, nil
-}
-
-func (d *device) _getHostByName(name string) (ip netip.Addr, err error) {
-	if err = d.execute("AT+WDOMAIN="+name, 1000); err != nil {
-		return
-	}
-	ipStr := split(d.last, 1, ":", "host by name")
-	return netip.ParseAddr(ipStr)
-}
-
-func (d *device) GetHostByName(name string) (ip netip.Addr, err error) {
-
-	// If it's already a dotted-network address, and not a host name,
-	// return it
-	ip, err = netip.ParseAddr(name)
-	if err == nil {
-		return
-	}
-
-	d.Lock()
-	defer d.Unlock()
-
-	return d._getHostByName(name)
-}
-
-func (d *device) Addr() (netip.Addr, error) {
-	return d.ip, nil
-}
-
-func (d *device) Socket(domain, stype, protocol int) (int, error) {
-
-	switch domain {
-	case netdev.AF_INET:
-	default:
-		return -1, netdev.ErrFamilyNotSupported
-	}
-
-	switch {
-	case protocol == netdev.IPPROTO_TCP && stype == netdev.SOCK_STREAM:
-	case protocol == netdev.IPPROTO_TLS && stype == netdev.SOCK_STREAM:
-	case protocol == netdev.IPPROTO_UDP && stype == netdev.SOCK_DGRAM:
-	default:
-		return -1, netdev.ErrProtocolNotSupported
-	}
-
-	d.Lock()
-	defer d.Unlock()
-
-	// Search for empty slot in sockets array
-	for fd, s := range d.sockets {
-		if s == nil {
-			// Found one
-			d.sockets[fd] = &socket{
-				protocol: protocol,
-				rx:       make(chan []byte, 10),
-			}
-			return fd, nil
-		}
-	}
-
-	return -1, netdev.ErrNoMoreSockets
-}
-
-func (d *device) Bind(sockfd int, ip netip.AddrPort) error {
-
-	d.Lock()
-	defer d.Unlock()
-
-	s, err := d.getSocket(sockfd)
-	if err != nil {
-		return err
-	}
-
-	s.laddr = ip
-	return nil
-}
-
-func (d *device) Connect(sockfd int, host string, ip netip.AddrPort) error {
-
-	var addr string
-	var cmd string
-
-	d.Lock()
-	defer d.Unlock()
-
-	s, err := d.getSocket(sockfd)
-	if err != nil {
-		return err
-	}
-
-	if host == "" {
-		addr = ip.Addr().String()
-	} else {
-		ip, err := d._getHostByName(host)
-		if err != nil {
-			return err
-		}
-		addr = ip.String()
-	}
-	port := strconv.Itoa(int(ip.Port()))
-
-	switch s.protocol {
-	case netdev.IPPROTO_UDP:
-		cmd = "AT+SOCKET=2," + addr + "," + port
-	case netdev.IPPROTO_TCP:
-		cmd = "AT+SOCKET=4," + addr + "," + port
-	case netdev.IPPROTO_TLS:
-		cmd = "AT+SOCKET=7," + addr + "," + port
-	}
-
-	if cmd == "" {
-		return netdev.ErrProtocolNotSupported
-	}
-
-	if err := d.execute(cmd, 20000); err != nil {
-		return err
-	}
-
-	s.id = split(d.last, 1, "=", "connection ID")
-
-	return nil
-}
-
-func (d *device) Listen(sockfd, backlog int) error {
-
-	// TODO Creating a TCP server socket isn't working when in STA mode,
-	// TODO returning error "Socket bind error".
-	// TODO The reference example shows a TCP server example in AP mode.
-
-	/*
-		var cmd string
-
-		d.Lock()
-		defer d.Unlock()
-
-		s, err := d.getSocket(sockfd)
-		if err != nil {
-			return err
-		}
-
-		port := strconv.Itoa(int(s.laddr.Port()))
-
-		switch s.protocol {
-		case netdev.IPPROTO_UDP:
-			cmd = "AT+SOCKET=1," + port
-		case netdev.IPPROTO_TCP:
-			cmd = "AT+SOCKET=3," + port
-		}
-
-		if cmd == "" {
-			return netdev.ErrProtocolNotSupported
-		}
-
-		if err := d.execute(cmd, 20000); err != nil {
-			return err
-		}
-
-		s.id = split(d.last, 1, "=", "connection ID")
-	*/
-
-	return netdev.ErrNotSupported
-}
-
-func (d *device) Accept(sockfd int) (int, netip.AddrPort, error) {
-	return 0, netip.AddrPort{}, netdev.ErrNotSupported
-}
-
-func (d *device) Send(sockfd int, buf []byte, flags int, deadline time.Time) (int, error) {
-
-	d.Lock()
-	defer d.Unlock()
-
-	s, err := d.getSocket(sockfd)
-	if err != nil {
-		return 0, err
-	}
-
-	cmd := fmt.Sprintf("AT+SOCKETSEND=%s,%d", s.id, len(buf))
-
-	if err := d.send(cmd, 1000); err != nil {
-		return 0, err
-	}
-
-	// AT+SOCKETSEND will sub-packet send data into 1024-byte chunks,
-	// automatically, so send the full buffer in one shot, even if it's
-	// bigger than 1024 bytes.
-
-	d.uartMu.Lock()
-	n, err := d.uart.Write(buf)
-	d.uartMu.Unlock()
-
-	if err != nil {
-		return 0, err
-	}
-
-	// Expecting "OK" after good send, or "ERROR"
-
-	t := time.NewTicker(time.Duration(1000) * time.Millisecond)
-	defer t.Stop()
-
-	select {
-	case <-t.C:
-		return 0, errors.New("Timed out")
-	case <-d.ok:
-		return n, nil
-	case err = <-d.err:
-		return 0, err
-	}
-}
-
-func (d *device) Recv(sockfd int, buf []byte, flags int, deadline time.Time) (int, error) {
-
-	d.Lock()
-	defer d.Unlock()
-
-	s, err := d.getSocket(sockfd)
-	if err != nil {
-		return 0, err
-	}
-
-	// 1. Use leftover data first
-	if len(s.remainder) > 0 {
-		n := copy(buf, s.remainder)
-		s.remainder = s.remainder[n:]
-		return n, nil
-	}
-
-	// 2. Get new data from the channel
-	data, ok := <-s.rx
-	if !ok {
-		// Socket closed, return EOF
-		return 0, io.EOF
-	}
-
-	// 3. Copy data, handle leftovers
-	n := copy(buf, data)
-	if n < len(data) {
-		s.remainder = data[n:]
-	}
-
-	return n, nil
-}
-
-func (d *device) Close(sockfd int) error {
-
-	d.Lock()
-	defer d.Unlock()
-
-	s, err := d.getSocket(sockfd)
-	if err != nil {
-		return err
-	}
-
-	// Delete socket only if connection was successful (s.id is set)
-	if s.id != "" {
-		cmd := fmt.Sprintf("AT+SOCKETDEL=%s", s.id)
-		if err = d.execute(cmd, 1000); err != nil {
-			return err
-		}
-	}
-
-	d.sockets[sockfd] = nil
-
-	return nil
-}
-
-func (d *device) SetSockOpt(sockfd, level, opt int, value interface{}) error {
-	return netdev.ErrNotSupported
-}
@@ -1,86 +0,0 @@
-package comboat
-
-import (
-	"bytes"
-	"strconv"
-)
-
-var errStrings = map[int]string{
-
-	// System framework related error codes
-
-	0:  "success",
-	1:  "The command is not supported (the combo framework contains the command but the current platform has not transplanted or adapted to support it)",
-	2:  "The command parameters contain unsupported operations (the current platform only supports some operations for this command)",
-	3:  "The instruction format is incorrect (this refers to the wrong number of parameters, for example, two parameters are required, but only one parameter is entered)",
-	4:  "Parameter error (the content of the parameter is wrong, for example, a number between 0 and 9 is required, but 10 or xyz is passed in, which is a parameter error)",
-	5:  "Parameter length error (command length exceeds the maximum supported length)",
-	31: "The current command has not ended and needs to report the status asynchronously. This value is used by the state machine to determine the use of the command and no message is returned.",
-	32: "Unknown error (or unhandled error type)",
-
-	// Common error codes
-
-	33: "malloc error",
-	34: "Failed to read buf",
-	35: "Failed to write buf",
-	36: "Configuration error (configuration error loaded from memory, for example, we set port -1 for OTA upgrade, and check port error when executing AT+OTA, then configuration error will be reported)",
-	37: "Failed to create task",
-	38: "Flash read and write failure",
-	39: "Serial port configuration error, unsupported baud rate",
-	40: "Serial port configuration error, unsupported data bits",
-	41: "Serial port configuration error, unsupported stop bit",
-	42: "Serial port configuration error, unsupported parity bit",
-	43: "Serial port configuration error, unsupported flow control",
-	44: "Serial port configuration failed",
-	45: "Wrong username/password",
-	46: "Low power mode error or unsupported low power mode",
-	47: "Uninitialized configuration data error (including io mapping data)",
-	63: "General error code (without other information)",
-
-	// Wi-Fi related error codes
-
-	64: "Wi-Fi not initialized or initialization failed",
-	65: "Wi-Fi mode error (unable to connect to Wi-Fi in single AP mode)",
-	66: "Wi-Fi connection failed",
-	67: "Wi-Fi connection successful, error in obtaining IP (DHCP)",
-	68: "Failed to obtain encryption method",
-	69: "The specified AP was not found.",
-	70: "Wi-Fi scan start failed",
-	71: "Wi-Fi scan timeout",
-	72: "Failed to enable AP hotspot",
-	73: "Failed to obtain the Wi-Fi information of the router or the AP information that you enabled yourself",
-	74: "The network card (STA/AP) is not running",
-	75: "Wi-Fi country code error (unsupported Wi-Fi country code)",
-	76: "The current network configuration mode is wrong.",
-	95: "Wi-Fi connection unknown error",
-
-	// Socket related error codes
-
-	96:  "Failed to create socket",
-	97:  "Socket connection failed",
-	98:  "DNS Failure",
-	99:  "The socket status is wrong (for example, TCP is not connected yet)",
-	100: "Socket type error",
-	101: "Socket send failed",
-	102: "Socket receive failed",
-	103: "Socket monitoring thread creation failed",
-	104: "Socket bind error",
-	105: "The current connection cannot be transparently linked (wrong socket type or number)",
-	106: "PING test failed (all packets lost)",
-	107: "Wi-Fi country code error (unsupported Wi-Fi country code)",
-	108: "SSL Config Error",
-	109: "SSL verification error (usually caused by unsupported SSL encryption type or certificate error)",
-	127: "Unknown socket error",
-}
-
-func getErrStr(errLine []byte) (errStr string) {
-	errStr = "Can't parse ERROR response"
-	tokens := bytes.Split(errLine, []byte(":"))
-	if len(tokens) > 1 {
-		errCode, err := strconv.Atoi(string(tokens[1]))
-		if err == nil {
-			errStr = errStrings[errCode]
-		}
-	}
-	return
-}
@@ -19,7 +19,7 @@ type OneWireDevice interface {
 	Write(uint8)
 	Read() uint8
 	Select([]uint8) error
-	Сrc8([]uint8) uint8
+	Сrc8([]uint8, int) uint8
 }

 // Device wraps a connection to an 1-Wire devices.
@@ -69,7 +69,7 @@ func (d Device) ReadTemperatureRaw(romid []uint8) ([]uint8, error) {
 	for i := 0; i < 9; i++ {
 		spb[i] = d.owd.Read()
 	}
-	if d.owd.Сrc8(spb) != 0 {
+	if d.owd.Сrc8(spb, 8) != spb[8] {
 		return nil, errReadTemperature
 	}
 	return spb[:2:2], nil
@@ -5,12 +5,10 @@
 package ds3231 // import "tinygo.org/x/drivers/ds3231"

 import (
-	"encoding/binary"
-	"errors"
 	"time"

 	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/internal/regmap"
+	"tinygo.org/x/drivers/internal/legacy"
 )

 type Mode uint8
@@ -19,7 +17,6 @@ type Mode uint8
 type Device struct {
 	bus     drivers.I2C
 	Address uint16
-	d       regmap.Device8I2C
 }

 // New creates a new DS3231 connection. The I2C bus must already be
@@ -27,50 +24,54 @@ type Device struct {
 //
 // This function only creates the Device object, it does not touch the device.
 func New(bus drivers.I2C) Device {
-	d := Device{
+	return Device{
 		bus:     bus,
 		Address: Address,
 	}
-	d.Configure()
-	return d
 }

 // Configure sets up the device for communication
 func (d *Device) Configure() bool {
-	d.d.SetBus(d.bus, d.Address, binary.BigEndian)
 	return true
 }

 // IsTimeValid return true/false is the time in the device is valid
 func (d *Device) IsTimeValid() bool {
-	status, err := d.d.Read8(REG_STATUS)
+	data := []byte{0}
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), REG_STATUS, data)
 	if err != nil {
 		return false
 	}
-	return (status & (1 << OSF)) == 0x00
+	return (data[0] & (1 << OSF)) == 0x00
 }

 // IsRunning returns if the oscillator is running
 func (d *Device) IsRunning() bool {
-	control, err := d.d.Read8(REG_CONTROL)
+	data := []uint8{0}
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), REG_CONTROL, data)
 	if err != nil {
 		return false
 	}
-	return (control & (1 << EOSC)) == 0x00
+	return (data[0] & (1 << EOSC)) == 0x00
 }

 // SetRunning starts the internal oscillator
 func (d *Device) SetRunning(isRunning bool) error {
-	control, err := d.d.Read8(REG_CONTROL)
+	data := []uint8{0}
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), REG_CONTROL, data)
 	if err != nil {
 		return err
 	}
 	if isRunning {
-		control &^= uint8(1 << EOSC)
+		data[0] &^= uint8(1 << EOSC)
 	} else {
-		control |= 1 << EOSC
+		data[0] |= 1 << EOSC
 	}
-	return d.d.Write8(REG_CONTROL, control)
+	err = legacy.WriteRegister(d.bus, uint8(d.Address), REG_CONTROL, data)
+	if err != nil {
+		return err
+	}
+	return nil
 }

 // SetTime sets the date and time in the DS3231. The DS3231 hardware supports
@@ -85,16 +86,18 @@ func (d *Device) SetRunning(isRunning bool) error {
 // 2100 as a leap year, causing it to increment from 2100-02-28 to 2100-02-29
 // instead of 2100-03-01.
 func (d *Device) SetTime(dt time.Time) error {
-	status, err := d.d.Read8(REG_STATUS)
+	data := []byte{0}
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), REG_STATUS, data)
 	if err != nil {
 		return err
 	}
-	status &^= 1 << OSF
-	if err = d.d.Write8(REG_STATUS, status); err != nil {
+	data[0] &^= 1 << OSF
+	err = legacy.WriteRegister(d.bus, uint8(d.Address), REG_STATUS, data)
+	if err != nil {
 		return err
 	}

-	data := make([]uint8, 7)
+	data = make([]uint8, 7)
 	data[0] = uint8ToBCD(uint8(dt.Second()))
 	data[1] = uint8ToBCD(uint8(dt.Minute()))
 	data[2] = uint8ToBCD(uint8(dt.Hour()))
@@ -115,16 +118,21 @@ func (d *Device) SetTime(dt time.Time) error {
 	data[5] = uint8ToBCD(uint8(dt.Month()) | centuryFlag)
 	data[6] = uint8ToBCD(year)

-	return d.bus.Tx(d.Address, append([]byte{REG_TIMEDATE}, data...), nil)
+	err = legacy.WriteRegister(d.bus, uint8(d.Address), REG_TIMEDATE, data)
+	if err != nil {
+		return err
+	}
+
+	return nil
 }

 // ReadTime returns the date and time
 func (d *Device) ReadTime() (dt time.Time, err error) {
 	data := make([]uint8, 7)
-	if err = d.d.ReadData(REG_TIMEDATE, data); err != nil {
+	err = legacy.ReadRegister(d.bus, uint8(d.Address), REG_TIMEDATE, data)
+	if err != nil {
 		return
 	}
-
 	second := bcdToInt(data[0] & 0x7F)
 	minute := bcdToInt(data[1])
 	hour := hoursBCDToInt(data[2])
@@ -142,264 +150,12 @@ func (d *Device) ReadTime() (dt time.Time, err error) {

 // ReadTemperature returns the temperature in millicelsius (mC)
 func (d *Device) ReadTemperature() (int32, error) {
-	temp, err := d.d.Read16(REG_TEMP)
+	data := make([]uint8, 2)
+	err := legacy.ReadRegister(d.bus, uint8(d.Address), REG_TEMP, data)
 	if err != nil {
 		return 0, err
 	}
-	return milliCelsius(temp), nil
-}
-
-// GetSqwPinMode returns the current square wave output frequency
-func (d *Device) GetSqwPinMode() SqwPinMode {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return SQW_OFF
-	}
-
-	control &= 0x1C // turn off INTCON
-	if control&0x04 != 0 {
-		return SQW_OFF
-	}
-
-	return SqwPinMode(control)
-}
-
-// SetSqwPinMode sets the square wave output mode to the given frequency
-func (d *Device) SetSqwPinMode(mode SqwPinMode) error {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return err
-	}
-
-	control &^= 0x04 // turn off INTCON
-	control &^= 0x18 // set freq bits to 0
-
-	control |= uint8(mode)
-
-	return d.d.Write8(REG_CONTROL, control)
-}
-
-// SetAlarm1 sets alarm1 to the given time and mode
-func (d *Device) SetAlarm1(dt time.Time, mode Alarm1Mode) error {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return err
-	}
-	if control&(1<<INTCN) == 0x00 {
-		return errors.New("INTCN has to be disabled")
-	}
-
-	A1M1 := uint8((mode & 0x01) << 7)
-	A1M2 := uint8((mode & 0x02) << 6)
-	A1M3 := uint8((mode & 0x04) << 5)
-	A1M4 := uint8((mode & 0x08) << 4)
-	DY_DT := uint8((mode & 0x10) << 2)
-
-	day := dt.Day()
-	if DY_DT > 0 {
-		day = dowToDS3231(int(dt.Weekday()))
-	}
-
-	alarm1 := uint32(uint8ToBCD(uint8(dt.Second()))|A1M1) << 24
-	alarm1 |= uint32(uint8ToBCD(uint8(dt.Minute()))|A1M2) << 16
-	alarm1 |= uint32(uint8ToBCD(uint8(dt.Hour()))|A1M3) << 8
-	alarm1 |= uint32(uint8ToBCD(uint8(day)) | A1M4 | DY_DT)
-
-	if err := d.d.Write32(REG_ALARMONE, alarm1); err != nil {
-		return err
-	}
-
-	control |= AlarmFlag_Alarm1
-	return d.d.Write8(REG_CONTROL, control)
-}
-
-// ReadAlarm1 returns the alarm1 time
-func (d *Device) ReadAlarm1() (dt time.Time, err error) {
-	data := make([]uint8, 4)
-	if err = d.d.ReadData(REG_ALARMONE, data); err != nil {
-		return
-	}
-	second := bcdToInt(data[0] & 0x7F)
-	minute := bcdToInt(data[1] & 0x7F)
-	hour := hoursBCDToInt(data[2] & 0x3F)
-
-	isDayOfWeek := (data[3] & 0x40) >> 6
-	var day int
-	if isDayOfWeek > 0 {
-		day = bcdToInt(data[3] & 0x0F)
-	} else {
-		day = bcdToInt(data[3] & 0x3F)
-	}
-
-	dt = time.Date(2000, 5, day, hour, minute, second, 0, time.UTC)
-	return
-}
-
-// SetAlarm2 sets alarm2 to the given time and mode
-func (d *Device) SetAlarm2(dt time.Time, mode Alarm2Mode) error {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return err
-	}
-	if control&(1<<INTCN) == 0x00 {
-		return errors.New("INTCN has to be disabled")
-	}
-
-	A2M2 := uint8((mode & 0x01) << 7)
-	A2M3 := uint8((mode & 0x02) << 6)
-	A2M4 := uint8((mode & 0x04) << 5)
-	DY_DT := uint8((mode & 0x08) << 3)
-
-	day := dt.Day()
-	if DY_DT > 0 {
-		day = dowToDS3231(int(dt.Weekday()))
-	}
-
-	data := make([]uint8, 4)
-	data[0] = uint8ToBCD(uint8(dt.Minute())) | A2M2
-	data[1] = uint8ToBCD(uint8(dt.Hour())) | A2M3
-	data[2] = uint8ToBCD(uint8(day)) | A2M4 | DY_DT
-	if err = d.bus.Tx(d.Address, append([]byte{REG_ALARMTWO}, data...), nil); err != nil {
-		return err
-	}
-
-	control |= AlarmFlag_Alarm2
-	return d.d.Write8(REG_CONTROL, control)
-}
-
-// ReadAlarm2 returns the alarm2 time
-func (d *Device) ReadAlarm2() (dt time.Time, err error) {
-	data := make([]uint8, 3)
-	if err = d.d.ReadData(REG_ALARMTWO, data); err != nil {
-		return
-	}
-	minute := bcdToInt(data[0] & 0x7F)
-	hour := hoursBCDToInt(data[1] & 0x3F)
-
-	isDayOfWeek := (data[2] & 0x40) >> 6
-	var day int
-	if isDayOfWeek > 0 {
-		day = bcdToInt(data[2] & 0x0F)
-	} else {
-		day = bcdToInt(data[2] & 0x3F)
-	}
-
-	dt = time.Date(2000, 5, day, hour, minute, 0, 0, time.UTC)
-	return
-}
-
-// IsEnabledAlarm1 returns true when alarm1 is enabled
-func (d *Device) IsEnabledAlarm1() bool {
-	return d.isEnabledAlarm(1)
-}
-
-// SetEnabledAlarm1 sets the enabled status of alarm1
-func (d *Device) SetEnabledAlarm1(enable bool) error {
-	if enable {
-		return d.enableAlarm(1)
-	}
-	return d.disableAlarm(1)
-}
-
-// IsEnabledAlarm2 returns true when alarm2 is enabled
-func (d *Device) IsEnabledAlarm2() bool {
-	return d.isEnabledAlarm(2)
-}
-
-// SetEnabledAlarm2 sets the enabled status of alarm2
-func (d *Device) SetEnabledAlarm2(enable bool) error {
-	if enable {
-		return d.enableAlarm(2)
-	}
-	return d.disableAlarm(2)
-}
-
-// ClearAlarm1 clears status of alarm1
-func (d *Device) ClearAlarm1() error {
-	return d.clearAlarm(1)
-}
-
-// ClearAlarm2 clears status of alarm2
-func (d *Device) ClearAlarm2() error {
-	return d.clearAlarm(2)
-}
-
-// IsAlarm1Fired returns true when alarm1 is firing
-func (d *Device) IsAlarm1Fired() bool {
-	return d.isAlarmFired(1)
-}
-
-// IsAlarm2Fired returns true when alarm2 is firing
-func (d *Device) IsAlarm2Fired() bool {
-	return d.isAlarmFired(2)
-}
-
-// SetEnabled32K sets the enabled status of the 32KHz output
-func (d *Device) SetEnabled32K(enable bool) error {
-	status, err := d.d.Read8(REG_STATUS)
-	if err != nil {
-		return err
-	}
-
-	if enable {
-		status |= 1 << EN32KHZ
-	} else {
-		status &^= 1 << EN32KHZ
-	}
-
-	return d.d.Write8(REG_STATUS, status)
-}
-
-// IsEnabled32K returns true when the 32KHz output is enabled
-func (d *Device) IsEnabled32K() bool {
-	status, err := d.d.Read8(REG_STATUS)
-	if err != nil {
-		return false
-	}
-	return (status & (1 << EN32KHZ)) != 0x00
-}
-
-func (d *Device) disableAlarm(alarm_num uint8) error {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return err
-	}
-	control &^= (1 << (alarm_num - 1))
-	return d.d.Write8(REG_CONTROL, control)
-}
-
-func (d *Device) enableAlarm(alarm_num uint8) error {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return err
-	}
-	control |= (1 << (alarm_num - 1))
-	return d.d.Write8(REG_CONTROL, control)
-}
-
-func (d *Device) isEnabledAlarm(alarm_num uint8) bool {
-	control, err := d.d.Read8(REG_CONTROL)
-	if err != nil {
-		return false
-	}
-	return (control & (1 << (alarm_num - 1))) != 0x00
-}
-
-func (d *Device) clearAlarm(alarm_num uint8) error {
-	status, err := d.d.Read8(REG_STATUS)
-	if err != nil {
-		return err
-	}
-	status &^= (1 << (alarm_num - 1))
-	return d.d.Write8(REG_STATUS, status)
-}
-
-func (d *Device) isAlarmFired(alarm_num uint8) bool {
-	status, err := d.d.Read8(REG_STATUS)
-	if err != nil {
-		return false
-	}
-	return (status & (1 << (alarm_num - 1))) != 0x00
+	return milliCelsius(data[0], data[1]), nil
 }

 // milliCelsius converts the raw temperature bytes (msb and lsb) from the DS3231
@@ -416,8 +172,8 @@ func (d *Device) isAlarmFired(alarm_num uint8) bool {
 // 16-bit signed integer in units of centi Celsius (1/100 deg C) with no loss of
 // precision or dynamic range. But for backwards compatibility, let's instead
 // convert this into a 32-bit signed integer in units of milli Celsius.
-func milliCelsius(tempBytes uint16) int32 {
-	t256 := int16(uint16(tempBytes>>8)<<8 | uint16(tempBytes&0xFF))
+func milliCelsius(msb uint8, lsb uint8) int32 {
+	t256 := int16(uint16(msb)<<8 | uint16(lsb))
 	t1000 := int32(t256) / 64 * 250
 	return t1000
 }
@@ -444,11 +200,3 @@ func hoursBCDToInt(value uint8) (hour int) {
 	}
 	return
 }
-
-// dowToDS3231 converts the day of the week to internal DS3231 format
-func dowToDS3231(d int) int {
-	if d == 0 {
-		return 7
-	}
-	return d
-}
@@ -5,71 +5,71 @@ import (
 )

 func TestPositiveMilliCelsius(t *testing.T) {
-	t1000 := milliCelsius(0)
+	t1000 := milliCelsius(0, 0)
 	if t1000 != 0 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b0000000001000000)
+	t1000 = milliCelsius(0, 0b01000000)
 	if t1000 != 250 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b0000000010000000)
+	t1000 = milliCelsius(0, 0b10000000)
 	if t1000 != 500 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b0000000011000000)
+	t1000 = milliCelsius(0, 0b11000000)
 	if t1000 != 750 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b0000000100000000)
+	t1000 = milliCelsius(1, 0b00000000)
 	if t1000 != 1000 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b0000001000000000)
+	t1000 = milliCelsius(2, 0b00000000)
 	if t1000 != 2000 {
 		t.Fatal(t1000)
 	}

 	// highest temperature is 127.750C
-	t1000 = milliCelsius(0b0111111111000000)
+	t1000 = milliCelsius(0x7f, 0b11000000)
 	if t1000 != 127750 {
 		t.Fatal(t1000)
 	}
 }

 func TestNegativeMilliCelsius(t *testing.T) {
-	t1000 := milliCelsius(0b1111111111000000)
+	t1000 := milliCelsius(0xff, 0b11000000)
 	if t1000 != -250 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b1111111110000000)
+	t1000 = milliCelsius(0xff, 0b10000000)
 	if t1000 != -500 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b1111111101000000)
+	t1000 = milliCelsius(0xff, 0b01000000)
 	if t1000 != -750 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b1111111100000000)
+	t1000 = milliCelsius(0xff, 0b00000000)
 	if t1000 != -1000 {
 		t.Fatal(t1000)
 	}

-	t1000 = milliCelsius(0b1111111000000000)
+	t1000 = milliCelsius(0xfe, 0b00000000)
 	if t1000 != -2000 {
 		t.Fatal(t1000)
 	}

 	// lowest temperature is -128.000C
-	t1000 = milliCelsius(0b1000000000000000)
+	t1000 = milliCelsius(0x80, 0b00000000)
 	if t1000 != -128000 {
 		t.Fatal(t1000)
 	}
@@ -46,52 +46,3 @@ const (
 	AlarmTwo      Mode = 4
 	ModeAlarmBoth Mode = 5
 )
-
-// SQW Pin Modes
-type SqwPinMode uint8
-
-const (
-	SQW_OFF  SqwPinMode = 0x1C
-	SQW_1HZ  SqwPinMode = 0x00
-	SQW_1KHZ SqwPinMode = 0x08
-	SQW_4KHZ SqwPinMode = 0x10
-	SQW_8KHZ SqwPinMode = 0x18
-)
-
-// Alarm1 Modes define which parts of the set alarm time has to match the current timestamp of the clock device for
-// alarm1 to fire
-type Alarm1Mode uint8
-
-const (
-	// Alarm1 fires every second
-	A1_PER_SECOND Alarm1Mode = 0x0F
-	// Alarm1 fires when the seconds match
-	A1_SECOND Alarm1Mode = 0x0E
-	// Alarm1 fires when both seconds and minutes match
-	A1_MINUTE Alarm1Mode = 0x0C
-	// Alarm1 fires when seconds, minutes and hours match
-	A1_HOUR Alarm1Mode = 0x08
-	// Alarm1 fires when seconds, minutes, hours and the day of the month match
-	A1_DATE Alarm1Mode = 0x00
-	// Alarm1 fires when seconds, minutes, hours and the day of the week match
-	A1_DAY Alarm1Mode = 0x10
-)
-
-// Alarm2 Modes define which parts of the set alarm time has to match the current timestamp of the clock device for
-// alarm2 to fire.
-//
-// Alarm2 only supports matching down to the minute unlike alarm1 which supports matching down to the second.
-type Alarm2Mode uint8
-
-const (
-	// Alarm2 fires every minute
-	A2_PER_MINUTE Alarm2Mode = 0x07
-	// Alarm2 fires when the minutes match
-	A2_MINUTE Alarm2Mode = 0x06
-	// Alarm2 fires when both minutes and hours match
-	A2_HOUR Alarm2Mode = 0x04
-	// Alarm2 fires when minutes, hours and the day of the month match
-	A2_DATE Alarm2Mode = 0x00
-	// Alarm2 fires when minutes, hours and the day of the week match
-	A2_DAY Alarm2Mode = 0x08
-)
@@ -1,34 +0,0 @@
-package encoders
-
-type QuadratureDevice struct {
-	cfg  QuadratureConfig
-	impl quadratureImpl
-}
-
-type QuadratureConfig struct {
-	Precision int
-}
-
-type quadratureImpl interface {
-	configure(cfg QuadratureConfig) error
-	readValue() int
-	writeValue(int)
-}
-
-func (enc *QuadratureDevice) Configure(cfg QuadratureConfig) error {
-	if cfg.Precision < 1 {
-		cfg.Precision = 4
-	}
-	enc.cfg = cfg
-	return enc.impl.configure(cfg)
-}
-
-// Position returns the stored int value for the encoder
-func (enc *QuadratureDevice) Position() int {
-	return enc.impl.readValue() / enc.cfg.Precision
-}
-
-// SetPosition overwrites the currently stored value with the specified int value
-func (enc *QuadratureDevice) SetPosition(v int) {
-	enc.impl.writeValue(v * enc.cfg.Precision)
-}
@@ -1,69 +0,0 @@
-//go:build tinygo && (rp2040 || rp2350 || stm32 || k210 || esp32c3 || nrf || sam || (avr && (atmega328p || atmega328pb)))
-
-// Implementation based on:
-// https://gist.github.com/aykevl/3fc1683ed77bb0a9c07559dfe857304a
-
-// Note: build constraints in this file list targets that define machine.PinToggle.
-// If this is supported for additional targets in the future, they can be added above.
-
-package encoders
-
-import (
-	"machine"
-	"runtime/volatile"
-)
-
-var (
-	states = []int8{0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0}
-)
-
-// NewQuadratureViaInterrupt returns a rotary encoder device that uses GPIO
-// interrupts and a lookup table to keep track of quadrature state changes.
-//
-// This constructur is only available for TinyGo targets for which machine.PinToggle
-// is defined as a valid interrupt type.
-func NewQuadratureViaInterrupt(pinA, pinB machine.Pin) *QuadratureDevice {
-	return &QuadratureDevice{impl: &quadInterruptImpl{pinA: pinA, pinB: pinB, oldAB: 0b00000011}}
-}
-
-type quadInterruptImpl struct {
-	pinA machine.Pin
-	pinB machine.Pin
-
-	// precision int
-
-	oldAB int
-	value volatile.Register32
-}
-
-func (enc *quadInterruptImpl) configure(cfg QuadratureConfig) error {
-	enc.pinA.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
-	enc.pinA.SetInterrupt(machine.PinToggle, enc.interrupt)
-
-	enc.pinB.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
-	enc.pinB.SetInterrupt(machine.PinToggle, enc.interrupt)
-
-	return nil
-}
-
-func (enc *quadInterruptImpl) interrupt(pin machine.Pin) {
-	aHigh, bHigh := enc.pinA.Get(), enc.pinB.Get()
-	enc.oldAB <<= 2
-	if aHigh {
-		enc.oldAB |= 1 << 1
-	}
-	if bHigh {
-		enc.oldAB |= 1
-	}
-	enc.writeValue(enc.readValue() + int(states[enc.oldAB&0x0f]))
-}
-
-// readValue gets the value using volatile operations and returns it as an int
-func (enc *quadInterruptImpl) readValue() int {
-	return int(enc.value.Get())
-}
-
-// writeValue set the value to the specified int using volatile operations
-func (enc *quadInterruptImpl) writeValue(v int) {
-	enc.value.Set(uint32(v))
-}
@@ -1,225 +0,0 @@
-// Package ens160 provides a driver for the ScioSense ENS160 digital gas sensor.
-//
-// Datasheet: https://www.sciosense.com/wp-content/uploads/2023/12/ENS160-Datasheet.pdf
-package ens160
-
-import (
-	"encoding/binary"
-	"errors"
-	"time"
-
-	"tinygo.org/x/drivers"
-)
-
-const (
-	defaultTimeout = 30 * time.Millisecond
-	shortTimeout   = 1 * time.Millisecond
-)
-
-// Conversion constants for environment data compensation.
-const (
-	kelvinOffsetMilli = 273150          // 273.15 K in milli-units
-	tempRawFactor     = 64              // As per datasheet for TEMP_IN
-	humRawFactor      = 512             // As per datasheet for RH_IN
-	milliFactor       = 1000            // For converting from milli-units
-	roundingTerm      = milliFactor / 2 // For rounding before integer division
-)
-
-// validityStrings provides human-readable descriptions for validity flags.
-var validityStrings = [...]string{
-	ValidityNormalOperation:     "normal operation",
-	ValidityWarmUpPhase:         "warm-up phase, wait ~3 minutes for valid data",
-	ValidityInitialStartUpPhase: "initial start-up phase, wait ~1 hour for valid data",
-	ValidityInvalidOutput:       "invalid output",
-}
-
-// Device wraps an I2C connection to an ENS160 device.
-type Device struct {
-	bus  drivers.I2C // I²C implementation
-	addr uint16      // 7‑bit bus address, promoted to uint16 per drivers.I2C
-
-	// shadow registers / last measurements
-	lastTvocPPB  uint16
-	lastEco2PPM  uint16
-	lastAqiUBA   uint8
-	lastValidity uint8 // Store the latest validity status
-
-	// pre‑allocated buffers
-	wbuf [5]byte // longest write: reg + 4 bytes (TEMP+RH)
-	rbuf [5]byte // longest read: DATA burst (5 bytes)
-}
-
-// New returns a new ENS160 driver.
-func New(bus drivers.I2C, addr uint16) *Device {
-	if addr == 0 {
-		addr = DefaultAddress
-	}
-	return &Device{
-		bus:          bus,
-		addr:         addr,
-		lastValidity: ValidityInvalidOutput,
-	}
-}
-
-// Connected returns whether a ENS160 has been found.
-func (d *Device) Connected() bool {
-	d.wbuf[0] = regPartID
-	err := d.bus.Tx(d.addr, d.wbuf[:1], d.rbuf[:2])
-	return err == nil && d.rbuf[0] == LowPartID && d.rbuf[1] == HighPartID
-}
-
-// Configure sets up the device for reading.
-func (d *Device) Configure() error {
-	// 1. Soft-reset. The device will automatically enter IDLE mode.
-	if err := d.write1(regOpMode, ModeReset); err != nil {
-		return err
-	}
-	time.Sleep(defaultTimeout)
-
-	// 2. Clear GPR registers, then go to STANDARD mode.
-	if err := d.write1(regCommand, cmdClrGPR); err != nil {
-		return err
-	}
-	time.Sleep(defaultTimeout)
-
-	if err := d.write1(regOpMode, ModeStandard); err != nil {
-		return err
-	}
-	time.Sleep(defaultTimeout)
-
-	return nil
-}
-
-// calculateTempRaw converts temperature from milli-degrees Celsius to the sensor's raw format.
-func calculateTempRaw(tempMilliC int32) uint16 {
-	// Clip temperature
-	const (
-		minC = -40 * 1000
-		maxC = 85 * 1000
-	)
-	if tempMilliC < minC {
-		tempMilliC = minC
-	} else if tempMilliC > maxC {
-		tempMilliC = maxC
-	}
-
-	// Integer fixed-point conversion to format required by the sensor.
-	// Formula from datasheet: T_IN = (T_ambient_C + 273.15) * 64
-	return uint16((((tempMilliC + kelvinOffsetMilli) * tempRawFactor) + roundingTerm) / milliFactor)
-}
-
-// calculateHumRaw converts relative humidity from milli-percent to the sensor's raw format.
-func calculateHumRaw(rhMilliPct int32) uint16 {
-	// Clip humidity
-	if rhMilliPct < 0 {
-		rhMilliPct = 0
-	} else if rhMilliPct > 100*1000 {
-		rhMilliPct = 100 * 1000
-	}
-
-	// Integer fixed-point conversion to format required by the sensor.
-	// Formula from datasheet: RH_IN = (RH_ambient_% * 512)
-	return uint16(((rhMilliPct * humRawFactor) + roundingTerm) / milliFactor)
-}
-
-// SetEnvDataMilli sets the ambient temperature and humidity for compensation.
-//
-// tempMilliC is the temperature in milli-degrees Celsius.
-// rhMilliPct is the relative humidity in milli-percent.
-func (d *Device) SetEnvDataMilli(tempMilliC, rhMilliPct int32) error {
-	tempRaw := calculateTempRaw(tempMilliC)
-	humRaw := calculateHumRaw(rhMilliPct)
-
-	d.wbuf[0] = regTempIn // start address (auto‑increment)
-	binary.LittleEndian.PutUint16(d.wbuf[1:3], tempRaw)
-	binary.LittleEndian.PutUint16(d.wbuf[3:5], humRaw)
-
-	return d.bus.Tx(d.addr, d.wbuf[:5], nil)
-}
-
-// Update refreshes the concentration measurements.
-func (d *Device) Update(which drivers.Measurement) error {
-	if which&drivers.Concentration == 0 {
-		return nil // nothing requested
-	}
-
-	const maxTries = 1000
-	var (
-		status   uint8
-		validity uint8
-	)
-	var gotData bool
-
-	// Poll DEVICE_STATUS until NEWDAT or timeout
-	for range maxTries {
-		var err error
-		status, err = d.read1(regStatus)
-		if err != nil {
-			return err
-		}
-		if status&statusSTATER != 0 {
-			return errors.New("ENS160: error (STATER set)")
-		}
-		validity = (status & statusValidityMask) >> statusValidityShift
-
-		if status&statusNEWDAT != 0 {
-			gotData = true
-			break // Always break when data available
-		}
-		time.Sleep(shortTimeout)
-	}
-	if !gotData {
-		return errors.New("ENS160: timeout waiting for NEWDAT")
-	}
-
-	// Burst-read data regardless of validity state
-	d.wbuf[0] = regAQI
-	if err := d.bus.Tx(d.addr, d.wbuf[:1], d.rbuf[:5]); err != nil {
-		return errors.New("ENS160: burst read failed")
-	}
-
-	d.lastAqiUBA = d.rbuf[0]
-	d.lastTvocPPB = binary.LittleEndian.Uint16(d.rbuf[1:3])
-	d.lastEco2PPM = binary.LittleEndian.Uint16(d.rbuf[3:5])
-	d.lastValidity = validity // Store the validity status
-
-	return nil
-}
-
-// TVOC returns the last total‑VOC concentration in parts‑per‑billion.
-func (d *Device) TVOC() uint16 { return d.lastTvocPPB }
-
-// ECO2 returns the last equivalent CO₂ concentration in parts‑per‑million.
-func (d *Device) ECO2() uint16 { return d.lastEco2PPM }
-
-// AQI returns the last Air‑Quality Index according to UBA (1–5).
-func (d *Device) AQI() uint8 { return d.lastAqiUBA }
-
-// Validity returns the current operating state of the sensor.
-func (d *Device) Validity() uint8 {
-	return d.lastValidity
-}
-
-// ValidityString returns a human-readable string describing the current validity status.
-func (d *Device) ValidityString() string {
-	if int(d.lastValidity) < len(validityStrings) {
-		return validityStrings[d.lastValidity]
-	}
-	return "unknown"
-}
-
-// write1 writes a single byte to a register.
-func (d *Device) write1(reg, val uint8) error {
-	d.wbuf[0] = reg
-	d.wbuf[1] = val
-	return d.bus.Tx(d.addr, d.wbuf[:2], nil)
-}
-
-// read1 reads a single byte from a register.
-func (d *Device) read1(reg uint8) (uint8, error) {
-	d.wbuf[0] = reg
-	if err := d.bus.Tx(d.addr, d.wbuf[:1], d.rbuf[:1]); err != nil {
-		return 0, err
-	}
-	return d.rbuf[0], nil
-}
@@ -1,54 +0,0 @@
-package ens160
-
-import (
-	"testing"
-)
-
-func TestCalculateTempRaw(t *testing.T) {
-	testCases := []struct {
-		name        string
-		tempMilliC  int32
-		expectedRaw uint16
-	}{
-		{"25°C", 25000, 19082},
-		{"-10.5°C", -10500, 16810},
-		{"Min temp", -40000, 14922},
-		{"Below min", -50000, 14922},
-		{"Max temp", 85000, 22922},
-		{"Above max", 90000, 22922},
-		{"Zero", 0, 17482},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			raw := calculateTempRaw(tc.tempMilliC)
-			if raw != tc.expectedRaw {
-				t.Errorf("expected %d, got %d", tc.expectedRaw, raw)
-			}
-		})
-	}
-}
-
-func TestCalculateHumRaw(t *testing.T) {
-	testCases := []struct {
-		name        string
-		rhMilliPct  int32
-		expectedRaw uint16
-	}{
-		{"50%", 50000, 25600},
-		{"0%", 0, 0},
-		{"100%", 100000, 51200},
-		{"Below 0%", -10000, 0},
-		{"Above 100%", 110000, 51200},
-		{"33.3%", 33300, 17050},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			raw := calculateHumRaw(tc.rhMilliPct)
-			if raw != tc.expectedRaw {
-				t.Errorf("expected %d, got %d", tc.expectedRaw, raw)
-			}
-		})
-	}
-}
@@ -1,65 +0,0 @@
-package ens160
-
-// DefaultAddress is the default I2C address for the ENS160 when the ADDR pin is
-// connected to high (3.3V). When connected to low (GND), the address is 0x52.
-const DefaultAddress = 0x53
-
-// Registers
-const (
-	regPartID   = 0x00
-	regOpMode   = 0x10
-	regConfig   = 0x11
-	regCommand  = 0x12
-	regTempIn   = 0x13
-	regRhIn     = 0x15
-	regStatus   = 0x20
-	regAQI      = 0x21
-	regTVOC     = 0x22
-	regECO2     = 0x24
-	regDataT    = 0x30
-	regDataRH   = 0x32
-	regMISR     = 0x38
-	regGPRWrite = 0x40
-	regGPRRead  = 0x48
-)
-
-// Operating modes
-const (
-	ModeDeepSleep = 0x00
-	ModeIdle      = 0x01
-	ModeStandard  = 0x02
-	ModeReset     = 0xF0
-)
-
-// Status register bits
-const (
-	statusSTATAS = 1 << 7
-	statusSTATER = 1 << 6
-
-	statusValidityMask  = 0x0C
-	statusValidityShift = 2
-
-	statusNEWDAT = 1 << 1
-	statusNEWGPR = 1 << 0
-)
-
-// Validity flags
-const (
-	ValidityNormalOperation     = 0x00
-	ValidityWarmUpPhase         = 0x01 // need ~3 minutes until valid data
-	ValidityInitialStartUpPhase = 0x02 // need ~1 hour until valid data
-	ValidityInvalidOutput       = 0x03
-)
-
-// Commands
-const (
-	cmdNOP       = 0x00
-	cmdGetAppVer = 0x0E
-	cmdClrGPR    = 0xCC
-)
-
-// Part IDs
-const (
-	LowPartID  = 0x60
-	HighPartID = 0x01
-)
@@ -0,0 +1,20 @@
+package espat
+
+import (
+	"time"
+
+	"tinygo.org/x/drivers/net"
+)
+
+func (d *Device) ConnectToAccessPoint(ssid, pass string, timeout time.Duration) error {
+	if len(ssid) == 0 {
+		return net.ErrWiFiMissingSSID
+	}
+
+	d.SetWifiMode(WifiModeClient)
+	return d.ConnectToAP(ssid, pass, int(timeout.Seconds()))
+}
+
+func (d *Device) Disconnect() error {
+	return d.DisconnectFromAP()
+}
@@ -15,302 +15,41 @@
 //
 // AT command set:
 // https://www.espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf
-//
-// 02/2023    sfeldma@gmail.com    Heavily modified to use netdev interface
-
 package espat // import "tinygo.org/x/drivers/espat"

 import (
 	"errors"
-	"fmt"
-	"machine"
-	"net"
-	"net/netip"
 	"strconv"
 	"strings"
-	"sync"
 	"time"

-	"tinygo.org/x/drivers/netdev"
-	"tinygo.org/x/drivers/netlink"
+	"tinygo.org/x/drivers"
+	"tinygo.org/x/drivers/net"
 )

-type Config struct {
-	// UART config
-	Uart *machine.UART
-	Tx   machine.Pin
-	Rx   machine.Pin
-}
-
-type socket struct {
-	inUse    bool
-	protocol int
-	laddr    netip.AddrPort
-}
-
+// Device wraps UART connection to the ESP8266/ESP32.
 type Device struct {
-	cfg  *Config
-	uart *machine.UART
+	bus drivers.UART
+
 	// command responses that come back from the ESP8266/ESP32
 	response []byte
+
 	// data received from a TCP/UDP connection forwarded by the ESP8266/ESP32
-	data   []byte
-	socket socket
-	mu     sync.Mutex
+	socketdata []byte
 }

-func NewDevice(cfg *Config) *Device {
-	return &Device{
-		cfg:      cfg,
-		response: make([]byte, 1500),
-		data:     make([]byte, 0, 1500),
-	}
+// ActiveDevice is the currently configured Device in use. There can only be one.
+var ActiveDevice *Device
+
+// New returns a new espat driver. Pass in a fully configured UART bus.
+func New(b drivers.UART) *Device {
+	return &Device{bus: b, response: make([]byte, 512), socketdata: make([]byte, 0, 1024)}
 }

-func (d *Device) NetConnect(params *netlink.ConnectParams) error {
-
-	if len(params.Ssid) == 0 {
-		return netlink.ErrMissingSSID
-	}
-
-	d.uart = d.cfg.Uart
-	d.uart.Configure(machine.UARTConfig{TX: d.cfg.Tx, RX: d.cfg.Rx})
-
-	// Connect to ESP8266/ESP32
-	fmt.Printf("Connecting to device...")
-
-	for i := 0; i < 5; i++ {
-		if d.Connected() {
-			break
-		}
-		time.Sleep(1 * time.Second)
-	}
-
-	if !d.Connected() {
-		fmt.Printf("FAILED\r\n")
-		return netlink.ErrConnectFailed
-	}
-
-	fmt.Printf("CONNECTED\r\n")
-
-	// Connect to Wifi AP
-	fmt.Printf("Connecting to Wifi SSID '%s'...", params.Ssid)
-
-	d.SetWifiMode(WifiModeClient)
-
-	err := d.ConnectToAP(params.Ssid, params.Passphrase, 10 /* secs */)
-	if err != nil {
-		fmt.Printf("FAILED\r\n")
-		return err
-	}
-
-	fmt.Printf("CONNECTED\r\n")
-
-	ip, err := d.Addr()
-	if err != nil {
-		return err
-	}
-	fmt.Printf("DHCP-assigned IP: %s\r\n", ip)
-	fmt.Printf("\r\n")
-
-	return nil
-}
-
-func (d *Device) NetDisconnect() {
-	d.DisconnectFromAP()
-	fmt.Printf("\r\nDisconnected from Wifi\r\n\r\n")
-}
-
-func (d *Device) NetNotify(cb func(netlink.Event)) {
-	fmt.Printf("\r\n%s\r\n", netlink.ErrNotSupported)
-}
-
-func (d *Device) GetHostByName(name string) (netip.Addr, error) {
-	ip, err := d.GetDNS(name)
-	if err != nil {
-		return netip.Addr{}, err
-	}
-	return netip.ParseAddr(ip)
-}
-
-func (d *Device) GetHardwareAddr() (net.HardwareAddr, error) {
-	return net.HardwareAddr{}, netlink.ErrNotSupported
-}
-
-func (d *Device) Addr() (netip.Addr, error) {
-	resp, err := d.GetClientIP()
-	if err != nil {
-		return netip.Addr{}, err
-	}
-	prefix := "+CIPSTA:ip:"
-	for _, line := range strings.Split(resp, "\n") {
-		if ok := strings.HasPrefix(line, prefix); ok {
-			ip := line[len(prefix)+1 : len(line)-2]
-			return netip.ParseAddr(ip)
-		}
-	}
-	return netip.Addr{}, fmt.Errorf("Error getting IP address")
-}
-
-func (d *Device) Socket(domain int, stype int, protocol int) (int, error) {
-
-	switch domain {
-	case netdev.AF_INET:
-	default:
-		return -1, netdev.ErrFamilyNotSupported
-	}
-
-	switch {
-	case protocol == netdev.IPPROTO_TCP && stype == netdev.SOCK_STREAM:
-	case protocol == netdev.IPPROTO_TLS && stype == netdev.SOCK_STREAM:
-	case protocol == netdev.IPPROTO_UDP && stype == netdev.SOCK_DGRAM:
-	default:
-		return -1, netdev.ErrProtocolNotSupported
-	}
-
-	// Only supporting single connection mode, so only one socket at a time
-	if d.socket.inUse {
-		return -1, netdev.ErrNoMoreSockets
-	}
-	d.socket.inUse = true
-	d.socket.protocol = protocol
-
-	return 0, nil
-}
-
-func (d *Device) Bind(sockfd int, ip netip.AddrPort) error {
-	d.socket.laddr = ip
-	return nil
-}
-
-func (d *Device) Connect(sockfd int, host string, ip netip.AddrPort) error {
-	var err error
-	var addr = ip.Addr().String()
-	var rport = strconv.Itoa(int(ip.Port()))
-	var lport = strconv.Itoa(int(d.socket.laddr.Port()))
-
-	switch d.socket.protocol {
-	case netdev.IPPROTO_TCP:
-		err = d.ConnectTCPSocket(addr, rport)
-	case netdev.IPPROTO_UDP:
-		err = d.ConnectUDPSocket(addr, rport, lport)
-	case netdev.IPPROTO_TLS:
-		err = d.ConnectSSLSocket(host, rport)
-	}
-
-	if err != nil {
-		if host == "" {
-			return fmt.Errorf("Connect to %s timed out", ip)
-		} else {
-			return fmt.Errorf("Connect to %s:%d timed out", host, ip.Port())
-		}
-	}
-
-	return nil
-}
-
-func (d *Device) Listen(sockfd int, backlog int) error {
-	switch d.socket.protocol {
-	case netdev.IPPROTO_UDP:
-	default:
-		return netdev.ErrProtocolNotSupported
-	}
-	return nil
-}
-
-func (d *Device) Accept(sockfd int) (int, netip.AddrPort, error) {
-	return -1, netip.AddrPort{}, netdev.ErrNotSupported
-}
-
-func (d *Device) sendChunk(sockfd int, buf []byte, deadline time.Time) (int, error) {
-	// Check if we've timed out
-	if !deadline.IsZero() {
-		if time.Now().After(deadline) {
-			return -1, netdev.ErrTimeout
-		}
-	}
-	err := d.StartSocketSend(len(buf))
-	if err != nil {
-		return -1, err
-	}
-	n, err := d.Write(buf)
-	if err != nil {
-		return -1, err
-	}
-	_, err = d.Response(1000)
-	if err != nil {
-		return -1, err
-	}
-	return n, err
-}
-
-func (d *Device) Send(sockfd int, buf []byte, flags int, deadline time.Time) (int, error) {
-
-	d.mu.Lock()
-	defer d.mu.Unlock()
-
-	// Break large bufs into chunks so we don't overrun the hw queue
-
-	chunkSize := 1436
-	for i := 0; i < len(buf); i += chunkSize {
-		end := i + chunkSize
-		if end > len(buf) {
-			end = len(buf)
-		}
-		_, err := d.sendChunk(sockfd, buf[i:end], deadline)
-		if err != nil {
-			return -1, err
-		}
-	}
-
-	return len(buf), nil
-}
-
-func (d *Device) Recv(sockfd int, buf []byte, flags int, deadline time.Time) (int, error) {
-
-	d.mu.Lock()
-	defer d.mu.Unlock()
-
-	var length = len(buf)
-
-	// Limit length read size to chunk large read requests
-	if length > 1436 {
-		length = 1436
-	}
-
-	for {
-		// Check if we've timed out
-		if !deadline.IsZero() {
-			if time.Now().After(deadline) {
-				return -1, netdev.ErrTimeout
-			}
-		}
-
-		n, err := d.ReadSocket(buf[:length])
-		if err != nil {
-			return -1, err
-		}
-		if n == 0 {
-			d.mu.Unlock()
-			time.Sleep(100 * time.Millisecond)
-			d.mu.Lock()
-			continue
-		}
-
-		return n, nil
-	}
-}
-
-func (d *Device) Close(sockfd int) error {
-	d.mu.Lock()
-	defer d.mu.Unlock()
-
-	d.socket.inUse = false
-	return d.DisconnectSocket()
-}
-
-func (d *Device) SetSockOpt(sockfd int, level int, opt int, value interface{}) error {
-	return netdev.ErrNotSupported
+// Configure sets up the device for communication.
+func (d Device) Configure() {
+	ActiveDevice = &d
+	net.ActiveDevice = ActiveDevice
 }

 // Connected checks if there is communication with the ESP8266/ESP32.
@@ -318,7 +57,7 @@ func (d *Device) Connected() bool {
 	d.Execute(Test)

 	// handle response here, should include "OK"
-	_, err := d.Response(1000)
+	_, err := d.Response(100)
 	if err != nil {
 		return false
 	}
@@ -327,12 +66,12 @@ func (d *Device) Connected() bool {

 // Write raw bytes to the UART.
 func (d *Device) Write(b []byte) (n int, err error) {
-	return d.uart.Write(b)
+	return d.bus.Write(b)
 }

 // Read raw bytes from the UART.
 func (d *Device) Read(b []byte) (n int, err error) {
-	return d.uart.Read(b)
+	return d.bus.Read(b)
 }

 // how long in milliseconds to pause after sending AT commands
@@ -361,10 +100,9 @@ func (d Device) Set(cmd, params string) error {
 // Version returns the ESP8266/ESP32 firmware version info.
 func (d Device) Version() []byte {
 	d.Execute(Version)
-	r, err := d.Response(2000)
+	r, err := d.Response(100)
 	if err != nil {
-		//return []byte("unknown")
-		return []byte(err.Error())
+		return []byte("unknown")
 	}
 	return r
 }
@@ -394,16 +132,16 @@ func (d *Device) ReadSocket(b []byte) (n int, err error) {
 	d.Response(300)

 	count := len(b)
-	if len(b) >= len(d.data) {
+	if len(b) >= len(d.socketdata) {
 		// copy it all, then clear socket data
-		count = len(d.data)
-		copy(b, d.data[:count])
-		d.data = d.data[:0]
+		count = len(d.socketdata)
+		copy(b, d.socketdata[:count])
+		d.socketdata = d.socketdata[:0]
 	} else {
 		// copy all we can, then keep the remaining socket data around
-		copy(b, d.data[:count])
-		copy(d.data, d.data[count:])
-		d.data = d.data[:len(d.data)-count]
+		copy(b, d.socketdata[:count])
+		copy(d.socketdata, d.socketdata[count:])
+		d.socketdata = d.socketdata[:len(d.socketdata)-count]
 	}

 	return count, nil
@@ -419,11 +157,11 @@ func (d *Device) Response(timeout int) ([]byte, error) {
 	retries := timeout / pause

 	for {
-		size = d.uart.Buffered()
+		size = d.bus.Buffered()

 		if size > 0 {
 			end += size
-			d.uart.Read(d.response[start:end])
+			d.bus.Read(d.response[start:end])

 			// if "+IPD" then read socket data
 			if strings.Contains(string(d.response[:end]), "+IPD") {
@@ -466,18 +204,18 @@ func (d *Device) parseIPD(end int) error {
 	val := string(d.response[s+5 : e])

 	// TODO: verify count
-	v, err := strconv.Atoi(val)
+	_, err := strconv.Atoi(val)
 	if err != nil {
 		// not expected data here. what to do?
 		return err
 	}

 	// load up the socket data
-	d.data = append(d.data, d.response[e+1:e+1+v]...)
+	d.socketdata = append(d.socketdata, d.response[e+1:end]...)
 	return nil
 }

 // IsSocketDataAvailable returns of there is socket data available
 func (d *Device) IsSocketDataAvailable() bool {
-	return len(d.data) > 0 || d.uart.Buffered() > 0
+	return len(d.socketdata) > 0 || d.bus.Buffered() > 0
 }
@@ -51,7 +51,7 @@ func (d *Device) ConnectTCPSocket(addr, port string) error {
 // ConnectUDPSocket creates a new UDP connection for the ESP8266/ESP32.
 func (d *Device) ConnectUDPSocket(addr, sendport, listenport string) error {
 	protocol := "UDP"
-	val := "\"" + protocol + "\",\"" + addr + "\"," + sendport + "," + listenport + ",0"
+	val := "\"" + protocol + "\",\"" + addr + "\"," + sendport + "," + listenport + ",2"
 	err := d.Set(TCPConnect, val)
 	if err != nil {
 		return err
@@ -44,7 +44,10 @@ func (d *Device) ConnectToAP(ssid, pwd string, ws int) error {
 	d.Set(ConnectAP, val)

 	_, err := d.Response(ws * 1000)
-	return err
+	if err != nil {
+		return err
+	}
+	return nil
 }

 // DisconnectFromAP disconnects the ESP8266/ESP32 from the current access point.
@@ -1,66 +0,0 @@
-// Package main provides a basic example of using the BNO08x driver
-// to read rotation vector (quaternion) data from the sensor.
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/bno08x"
-)
-
-func main() {
-	time.Sleep(2 * time.Second) // Wait for sensor to power up
-	// Initialize I2C bus
-	i2c := machine.I2C0
-	err := i2c.Configure(machine.I2CConfig{
-		Frequency: 400 * machine.KHz,
-	})
-	if err != nil {
-		println("Failed to configure I2C:", err.Error())
-		return
-	}
-
-	println("Initializing BNO08x sensor...")
-
-	// Create and configure sensor using I2C
-	sensor := bno08x.NewI2C(i2c)
-	err = sensor.Configure(bno08x.Config{})
-	if err != nil {
-		println("Failed to configure sensor:", err.Error())
-		return
-	}
-
-	println("Sensor initialized successfully")
-
-	// Enable Game Rotation Vector reports at 100Hz (10000 microseconds = 10ms interval)
-	// Using Game Rotation Vector (0x08) to match the working channel_debug test
-	err = sensor.EnableReport(bno08x.SensorGameRotationVector, 10000)
-	if err != nil {
-		println("Failed to enable game rotation vector:", err.Error())
-		return
-	}
-
-	println("Reading rotation vectors...")
-	println("Format: Real I J K Accuracy")
-
-	// Add a delay after enabling reports (Arduino does this)
-	time.Sleep(100 * time.Millisecond)
-
-	// Main loop - read and display quaternion data
-	for {
-		event, ok := sensor.GetSensorEvent()
-		if ok && (event.ID() == bno08x.SensorRotationVector || event.ID() == bno08x.SensorGameRotationVector) {
-			q := event.Quaternion()
-			if event.ID() == bno08x.SensorRotationVector {
-				println(q.Real, q.I, q.J, q.K, event.QuaternionAccuracy())
-			} else {
-				// GameRotationVector doesn't have accuracy
-				println(q.Real, q.I, q.J, q.K)
-			}
-		}
-
-		// Arduino uses 10ms delay in loop
-		time.Sleep(10 * time.Millisecond)
-	}
-}
@@ -1,74 +0,0 @@
-// Connects to an DS3231 I2C Real Time Clock (RTC) and sets both alarms. It then repeatedly checks
-// if the alarms are firing and prints out a message if that is the case.
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/ds3231"
-)
-
-func main() {
-	machine.I2C0.Configure(machine.I2CConfig{})
-
-	rtc := ds3231.New(machine.I2C0)
-	rtc.Configure()
-
-	valid := rtc.IsTimeValid()
-	if !valid {
-		date := time.Date(2019, 12, 05, 20, 34, 12, 0, time.UTC)
-		rtc.SetTime(date)
-	}
-
-	// Set alarm1 so it triggers when the seconds match 59 => repeats every minute at dd:hh:mm:59
-	if err := rtc.SetAlarm1(time.Date(0, 0, 0, 0, 0, 59, 0, time.UTC), ds3231.A1_SECOND); err != nil {
-		println("Error while setting Alarm1")
-	}
-	if err := rtc.SetEnabledAlarm1(true); err != nil {
-		println("Error while enabling Alarm1")
-	}
-
-	// Set alarm2 so it triggers when the minutes match 35 => repeats every hour at dd:hh:35:ss
-	if err := rtc.SetAlarm2(time.Date(0, 0, 0, 0, 35, 0, 0, time.UTC), ds3231.A2_MINUTE); err != nil {
-		println("Error while setting Alarm2")
-	}
-	if err := rtc.SetEnabledAlarm2(true); err != nil {
-		println("Error while enabling Alarm2")
-	}
-
-	running := rtc.IsRunning()
-	if !running {
-		err := rtc.SetRunning(true)
-		if err != nil {
-			println("Error configuring RTC")
-		}
-	}
-
-	for {
-		dt, err := rtc.ReadTime()
-		if err != nil {
-			println("Error reading date:", err)
-			continue
-		}
-
-		a1 := rtc.IsAlarm1Fired()
-		a2 := rtc.IsAlarm2Fired()
-
-		println(dt.Format(time.DateTime), "A1:", a1, "A2:", a2)
-
-		if a1 {
-			if err := rtc.ClearAlarm1(); err != nil {
-				println("Error while clearing alarm1")
-			}
-		}
-		if a2 {
-			if err := rtc.ClearAlarm2(); err != nil {
-				println("Error while clearing alarm2")
-			}
-
-		}
-
-		time.Sleep(time.Second * 1)
-	}
-}
@@ -3,9 +3,10 @@ package main

 import (
 	"machine"
-	"strconv"
 	"time"

+	"fmt"
+
 	"tinygo.org/x/drivers/ds3231"
 )

@@ -25,19 +26,19 @@ func main() {
 	if !running {
 		err := rtc.SetRunning(true)
 		if err != nil {
-			println("Error configuring RTC")
+			fmt.Println("Error configuring RTC")
 		}
 	}

 	for {
 		dt, err := rtc.ReadTime()
 		if err != nil {
-			println("Error reading date:", err)
+			fmt.Println("Error reading date:", err)
 		} else {
-			println(dt.Format(time.DateTime))
+			fmt.Printf("Date: %d/%s/%02d %02d:%02d:%02d \r\n", dt.Year(), dt.Month(), dt.Day(), dt.Hour(), dt.Minute(), dt.Second())
 		}
 		temp, _ := rtc.ReadTemperature()
-		println("Temperature:", strconv.FormatFloat(float64(temp)/1000, 'f', -1, 32), "°C")
+		fmt.Printf("Temperature: %.2f °C \r\n", float32(temp)/1000)

 		time.Sleep(time.Second * 1)
 	}
@@ -1,28 +0,0 @@
-//go:build macropad_rp2040
-
-package main
-
-import (
-	"machine"
-
-	"tinygo.org/x/drivers/encoders"
-)
-
-var (
-	enc = encoders.NewQuadratureViaInterrupt(machine.ROT_A, machine.ROT_B)
-)
-
-func main() {
-
-	enc.Configure(encoders.QuadratureConfig{
-		Precision: 4,
-	})
-
-	for oldValue := 0; ; {
-		if newValue := enc.Position(); newValue != oldValue {
-			println("value: ", newValue)
-			oldValue = newValue
-		}
-	}
-
-}
@@ -1,56 +0,0 @@
-// This example demonstrates ENS160 usage.
-//
-// Wiring:
-// - VCC to 3.3V, GND to ground
-// - SDA to board SDA, SCL to board SCL
-
-package main
-
-import (
-	"time"
-
-	"machine"
-
-	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/ens160"
-)
-
-func main() {
-	err := machine.I2C0.Configure(machine.I2CConfig{
-		Frequency: 400 * machine.KHz,
-	})
-	if err != nil {
-		println("Failed to configure I2C:", err)
-	}
-
-	dev := ens160.New(machine.I2C0, ens160.DefaultAddress)
-
-	connected := dev.Connected()
-	if !connected {
-		println("ENS160 not detected")
-		return
-	}
-	println("ENS160 detected")
-
-	if err := dev.Configure(); err != nil {
-		println("Failed to configure ENS160:", err)
-	}
-
-	for {
-		err := dev.Update(drivers.Concentration)
-		if err != nil {
-			println("Error reading ENS160: %v\n", err)
-			time.Sleep(5 * time.Second)
-			continue
-		}
-
-		println(
-			"AQI:", dev.AQI(),
-			"TVOC:", dev.TVOC(),
-			"eCO2:", dev.ECO2(),
-			"Validity:", dev.ValidityString(),
-		)
-
-		time.Sleep(2 * time.Second)
-	}
-}
@@ -0,0 +1,145 @@
+// This is a console to a ESP8266/ESP32 running on the device UART1.
+// Allows you to type AT commands from your computer via the microcontroller.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266 <--> INTERNET
+//
+// More information on the Espressif AT command set at:
+// https://www.espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf
+package main
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+)
+
+// change actAsAP to true to act as an access point instead of connecting to one.
+const actAsAP = false
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	uart = machine.UART1
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	console = machine.Serial
+
+	adaptor *espat.Device
+)
+
+func main() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	// Init esp8266
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	println("Type an AT command then press enter:")
+	prompt()
+
+	input := make([]byte, 64)
+	i := 0
+	for {
+		if console.Buffered() > 0 {
+			data, _ := console.ReadByte()
+
+			switch data {
+			case 13:
+				// return key
+				console.Write([]byte("\r\n"))
+
+				// send command to ESP8266
+				input[i] = byte('\r')
+				input[i+1] = byte('\n')
+				adaptor.Write(input[:i+2])
+
+				// display response
+				r, _ := adaptor.Response(500)
+				console.Write(r)
+
+				// prompt
+				prompt()
+
+				i = 0
+				continue
+			default:
+				// just echo the character
+				console.WriteByte(data)
+				input[i] = data
+				i++
+			}
+		}
+		time.Sleep(10 * time.Millisecond)
+	}
+}
+
+func prompt() {
+	print("ESPAT>")
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+// provide access point
+func provideAP() {
+	println("Starting wifi network as access point '" + ssid + "'...")
+	adaptor.SetWifiMode(espat.WifiModeAP)
+	adaptor.SetAPConfig(ssid, pass, 7, espat.WifiAPSecurityWPA2_PSK)
+	println("Ready.")
+	ip, _ := adaptor.GetAPIP()
+	println(ip)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,131 @@
+// This is a sensor hub that uses a ESP8266/ESP32 running on the device UART1.
+// It creates a UDP "server" you can use to get info to/from your computer via the microcontroller.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266 <--> INTERNET
+package main
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+	"tinygo.org/x/drivers/net"
+)
+
+// change actAsAP to true to act as an access point instead of connecting to one.
+const actAsAP = false
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	uart = machine.UART1
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	adaptor *espat.Device
+)
+
+func main() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	// Init esp8266
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	readyled := machine.LED
+	readyled.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	readyled.High()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	// now make UDP connection
+	laddr := &net.UDPAddr{Port: 2222}
+	println("Loading UDP listener...")
+	conn, _ := net.ListenUDP("UDP", laddr)
+
+	println("Waiting for data...")
+	data := make([]byte, 50)
+	blink := true
+	for {
+		n, _ := conn.Read(data)
+		if n > 0 {
+			println(string(data[:n]))
+			conn.Write([]byte("hello back\r\n"))
+		}
+		blink = !blink
+		if blink {
+			readyled.High()
+		} else {
+			readyled.Low()
+		}
+		time.Sleep(500 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting UDP...")
+	conn.Close()
+	println("Done.")
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+// provide access point
+func provideAP() {
+	println("Starting wifi network as access point '" + ssid + "'...")
+	adaptor.SetWifiMode(espat.WifiModeAP)
+	adaptor.SetAPConfig(ssid, pass, 7, espat.WifiAPSecurityWPA2_PSK)
+	println("Ready.")
+	ip, _ := adaptor.GetAPIP()
+	println(ip)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,110 @@
+// This is a sensor station that uses a ESP8266 or ESP32 running on the device UART1.
+// It creates a UDP connection you can use to get info to/from your computer via the microcontroller.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266
+package main
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+	"tinygo.org/x/drivers/net"
+)
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// IP address of the listener aka "hub". Replace with your own info.
+const hubIP = "0.0.0.0"
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	uart = machine.UART1
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	adaptor *espat.Device
+)
+
+func main() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	// Init esp8266/esp32
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	// now make UDP connection
+	ip := net.ParseIP(hubIP)
+	raddr := &net.UDPAddr{IP: ip, Port: 2222}
+	laddr := &net.UDPAddr{Port: 2222}
+
+	println("Dialing UDP connection...")
+	conn, _ := net.DialUDP("udp", laddr, raddr)
+
+	for {
+		// send data
+		println("Sending data...")
+		conn.Write([]byte("hello\r\n"))
+
+		time.Sleep(1000 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting UDP...")
+	conn.Close()
+	println("Done.")
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,144 @@
+// This is a sensor station that uses a ESP8266 or ESP32 running on the device UART1.
+// It creates an MQTT connection that publishes a message every second
+// to an MQTT broker.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266 <--> Internet <--> MQTT broker.
+//
+// You must install the Paho MQTT package to build this program:
+//
+//	go get -u github.com/eclipse/paho.mqtt.golang
+package main
+
+import (
+	"machine"
+	"math/rand"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+	"tinygo.org/x/drivers/net/mqtt"
+)
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// IP address of the MQTT broker to use. Replace with your own info.
+const server = "tcp://test.mosquitto.org:1883"
+
+//const server = "ssl://test.mosquitto.org:8883"
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	uart = machine.UART2
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	console = machine.Serial
+
+	adaptor *espat.Device
+	topic   = "tinygo"
+)
+
+func main() {
+	time.Sleep(3000 * time.Millisecond)
+
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+	rand.Seed(time.Now().UnixNano())
+
+	// Init esp8266/esp32
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	opts := mqtt.NewClientOptions()
+	opts.AddBroker(server).SetClientID("tinygo-client-" + randomString(10))
+
+	println("Connecting to MQTT broker at", server)
+	cl := mqtt.NewClient(opts)
+	if token := cl.Connect(); token.Wait() && token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	for {
+		println("Publishing MQTT message...")
+		data := []byte("{\"e\":[{ \"n\":\"hello\", \"v\":101 }]}")
+		token := cl.Publish(topic, 0, false, data)
+		token.Wait()
+		if token.Error() != nil {
+			println(token.Error().Error())
+		}
+
+		time.Sleep(1000 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting MQTT...")
+	cl.Disconnect(100)
+
+	println("Done.")
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+// Returns an int >= min, < max
+func randomInt(min, max int) int {
+	return min + rand.Intn(max-min)
+}
+
+// Generate a random string of A-Z chars with len = l
+func randomString(len int) string {
+	bytes := make([]byte, len)
+	for i := 0; i < len; i++ {
+		bytes[i] = byte(randomInt(65, 90))
+	}
+	return string(bytes)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,165 @@
+// This is a sensor station that uses a ESP8266 or ESP32 running on the device UART1.
+// It creates an MQTT connection that publishes a message every second
+// to an MQTT broker.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266 <--> Internet <--> MQTT broker.
+//
+// You must also install the Paho MQTT package to build this program:
+//
+//	go get -u github.com/eclipse/paho.mqtt.golang
+package main
+
+import (
+	"fmt"
+	"machine"
+	"math/rand"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+	"tinygo.org/x/drivers/net/mqtt"
+)
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// IP address of the MQTT broker to use. Replace with your own info.
+//const server = "tcp://test.mosquitto.org:1883"
+
+const server = "ssl://test.mosquitto.org:8883"
+
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	// these are defaults for the Arduino Nano33 IoT.
+	uart = machine.UART1
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	console = machine.Serial
+
+	adaptor *espat.Device
+	cl      mqtt.Client
+	topicTx = "tinygo/tx"
+	topicRx = "tinygo/rx"
+)
+
+func subHandler(client mqtt.Client, msg mqtt.Message) {
+	fmt.Printf("[%s]  ", msg.Topic())
+	fmt.Printf("%s\r\n", msg.Payload())
+}
+
+func main() {
+	time.Sleep(3000 * time.Millisecond)
+
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+	rand.Seed(time.Now().UnixNano())
+
+	// Init esp8266/esp32
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	opts := mqtt.NewClientOptions()
+	opts.AddBroker(server).SetClientID("tinygo-client-" + randomString(10))
+
+	println("Connecting to MQTT broker at", server)
+	cl = mqtt.NewClient(opts)
+	if token := cl.Connect(); token.Wait() && token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	// subscribe
+	token := cl.Subscribe(topicRx, 0, subHandler)
+	token.Wait()
+	if token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	go publishing()
+
+	select {}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting MQTT...")
+	cl.Disconnect(100)
+
+	println("Done.")
+}
+
+func publishing() {
+	for {
+		println("Publishing MQTT message...")
+		data := []byte("{\"e\":[{ \"n\":\"hello\", \"v\":101 }]}")
+		token := cl.Publish(topicTx, 0, false, data)
+		token.Wait()
+		if token.Error() != nil {
+			println(token.Error().Error())
+		}
+
+		time.Sleep(1000 * time.Millisecond)
+	}
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+// Returns an int >= min, < max
+func randomInt(min, max int) int {
+	return min + rand.Intn(max-min)
+}
+
+// Generate a random string of A-Z chars with len = l
+func randomString(len int) string {
+	bytes := make([]byte, len)
+	for i := 0; i < len; i++ {
+		bytes[i] = byte(randomInt(65, 90))
+	}
+	return string(bytes)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,113 @@
+// This is a sensor station that uses a ESP8266 or ESP32 running on the device UART1.
+// It creates a UDP connection you can use to get info to/from your computer via the microcontroller.
+//
+// In other words:
+// Your computer <--> UART0 <--> MCU <--> UART1 <--> ESP8266
+package main
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/espat"
+	"tinygo.org/x/drivers/net"
+)
+
+var (
+	// access point info
+	ssid string
+	pass string
+)
+
+// IP address of the server aka "hub". Replace with your own info.
+const serverIP = "0.0.0.0"
+
+// these are the default pins for the Arduino Nano33 IoT.
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	uart = machine.UART1
+	tx   = machine.PA22
+	rx   = machine.PA23
+
+	adaptor *espat.Device
+)
+
+func main() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	// Init esp8266/esp32
+	adaptor = espat.New(uart)
+	adaptor.Configure()
+
+	// first check if connected
+	if connectToESP() {
+		println("Connected to wifi adaptor.")
+		adaptor.Echo(false)
+
+		connectToAP()
+	} else {
+		println("")
+		failMessage("Unable to connect to wifi adaptor.")
+		return
+	}
+
+	// now make TCP connection
+	ip := net.ParseIP(serverIP)
+	raddr := &net.TCPAddr{IP: ip, Port: 8080}
+	laddr := &net.TCPAddr{Port: 8080}
+
+	println("Dialing TCP connection...")
+	conn, err := net.DialTCP("tcp", laddr, raddr)
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	for {
+		// send data
+		println("Sending data...")
+		conn.Write([]byte("hello\r\n"))
+
+		time.Sleep(1000 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting TCP...")
+	conn.Close()
+	println("Done.")
+}
+
+// connect to ESP8266/ESP32
+func connectToESP() bool {
+	for i := 0; i < 5; i++ {
+		println("Connecting to wifi adaptor...")
+		if adaptor.Connected() {
+			return true
+		}
+		time.Sleep(1 * time.Second)
+	}
+	return false
+}
+
+// connect to access point
+func connectToAP() {
+	println("Connecting to wifi network '" + ssid + "'")
+
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
+
+	println("Connected.")
+	ip, err := adaptor.GetClientIP()
+	if err != nil {
+		failMessage(err.Error())
+	}
+
+	println(ip)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -10,7 +10,7 @@ import (
 func main() {
 	console_example.RunFor(
 		flash.NewSPI(
-			machine.SPI1,
+			&machine.SPI1,
 			machine.SPI1_SDO_PIN,
 			machine.SPI1_SDI_PIN,
 			machine.SPI1_SCK_PIN,
@@ -10,7 +10,7 @@ import (
 func main() {
 	println("GPS I2C Example")
 	machine.I2C0.Configure(machine.I2CConfig{})
-	ublox := gps.NewI2CWithAddress(machine.I2C0, gps.UBLOX_I2C_ADDRESS)
+	ublox := gps.NewI2C(machine.I2C0)
 	parser := gps.NewParser()
 	var fix gps.Fix
 	for {
@@ -8,6 +8,7 @@ import (
 )

 func main() {
+	println("GPS UART Example")
 	machine.UART1.Configure(machine.UARTConfig{BaudRate: 9600})
 	ublox := gps.NewUART(machine.UART1)
 	parser := gps.NewParser()
@@ -15,24 +16,14 @@ func main() {
 	for {
 		s, err := ublox.NextSentence()
 		if err != nil {
-			switch err {
-			case gps.ErrUnknownNMEASentence, gps.ErrInvalidNMEASentence, gps.ErrInvalidNMEASentenceLength:
-				continue
-			default:
-				println("sentence error:", err)
-				continue
-			}
+			println(err)
+			continue
 		}

 		fix, err = parser.Parse(s)
 		if err != nil {
-			switch err {
-			case gps.ErrUnknownNMEASentence, gps.ErrInvalidNMEASentence, gps.ErrInvalidNMEASentenceLength:
-				continue
-			default:
-				println("parse error:", err)
-				continue
-			}
+			println(err)
+			continue
 		}
 		if fix.Valid {
 			print(fix.Time.Format("15:04:05"))
@@ -52,10 +43,7 @@ func main() {
 			}
 			println()
 		} else {
-			if fix.Type == gps.GSV {
-				// GSV sentence provides satellite count even if no fix yet
-				println(fix.Satellites, "satellites visible")
-			}
+			println("No fix")
 		}
 		time.Sleep(200 * time.Millisecond)
 	}
@@ -1,49 +0,0 @@
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers"
-	"tinygo.org/x/drivers/honeyhsc"
-)
-
-// Data taken from https://github.com/rodan/honeywell_hsc_ssc_i2c/blob/master/hsc_ssc_i2c.cpp
-// these defaults are valid for the HSCMRNN030PA2A3 chip
-const (
-	i2cAddress = 0x28
-	// 10%
-	outputMinimum = 0x666
-	// 90% of 2^14 - 1
-	outputMax = 0x399A
-	// min is 0 for sensors that give absolute values
-	pressureMin = 0
-	// 30psi (and we want results in millipascals)
-	// pressureMax = 206842.7
-	pressureMax = 206843 * 1000
-)
-
-func main() {
-	bus := machine.I2C0
-	err := bus.Configure(machine.I2CConfig{
-		Frequency: 400_000, // 100kHz minimum and 400kHz I2C maximum clock. 50 to 800 for SPI.
-		SDA:       machine.I2C0_SDA_PIN,
-		SCL:       machine.I2C0_SCL_PIN,
-	})
-	if err != nil {
-		panic(err.Error())
-	}
-	sensor := honeyhsc.NewDevI2C(bus, i2cAddress, outputMinimum, outputMax, pressureMin, pressureMax)
-	for {
-		time.Sleep(time.Second)
-		const measuremask = drivers.Pressure | drivers.Temperature
-		err := sensor.Update(measuremask)
-		if err != nil {
-			println("error updating measurements:", err.Error())
-			continue
-		}
-		P := sensor.Pressure()
-		T := sensor.Temperature()
-		println("pressure:", P, "temperature:", T)
-	}
-}
@@ -1,29 +0,0 @@
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/ina219"
-)
-
-func main() {
-	machine.I2C0.Configure(machine.I2CConfig{})
-
-	dev := ina219.New(machine.I2C0)
-	dev.Configure()
-
-	for {
-		busVoltage, shuntVoltage, current, power, err := dev.Measurements()
-		if err != nil {
-			println("Error reading measurements", err)
-		}
-
-		println("Bus Voltage:", busVoltage, "V")
-		println("Shunt Voltage:", shuntVoltage/100, "mV")
-		println("Current:", current, "mA")
-		println("Power:", power, "mW")
-
-		time.Sleep(10 * time.Millisecond)
-	}
-}
@@ -14,18 +14,9 @@ func main() {
 	i2c.Configure(machine.I2CConfig{SCL: machine.SCL1_PIN, SDA: machine.SDA1_PIN})

 	accel := lis3dh.New(i2c)
-	err := accel.Configure(lis3dh.Config{
-		Address: lis3dh.Address1, // address on the Circuit Playground Express
-	})
-	for err != nil {
-		println("could not configure LIS3DH:", err)
-		time.Sleep(time.Second)
-	}
-	err = accel.SetRange(lis3dh.RANGE_2_G)
-	for err != nil {
-		println("could not set acceleration range:", err)
-		time.Sleep(time.Second)
-	}
+	accel.Address = lis3dh.Address1 // address on the Circuit Playground Express
+	accel.Configure()
+	accel.SetRange(lis3dh.RANGE_2_G)

 	println(accel.Connected())

@@ -1,58 +0,0 @@
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/lsm303dlhc"
-)
-
-func main() {
-
-	// LSM303DLHC is connected to the I2C0 bus on Adafruit Feather M4 via pins: 20(SDA) and 21(SCL).
-	machine.I2C0.Configure(machine.I2CConfig{})
-
-	sensor := lsm303dlhc.New(machine.I2C0)
-	//default settings
-	err := sensor.Configure(lsm303dlhc.Configuration{
-		AccelPowerMode: lsm303dlhc.ACCEL_POWER_NORMAL,
-		AccelRange:     lsm303dlhc.ACCEL_RANGE_2G,
-		AccelDataRate:  lsm303dlhc.ACCEL_DATARATE_100HZ,
-		MagPowerMode:   lsm303dlhc.MAG_POWER_NORMAL,
-		MagSystemMode:  lsm303dlhc.MAG_SYSTEM_CONTINUOUS,
-		MagDataRate:    lsm303dlhc.MAG_DATARATE_10HZ,
-	})
-	if err != nil {
-		for {
-			println("Failed to configure", err.Error())
-			time.Sleep(time.Second)
-		}
-	}
-
-	for {
-		accel_x, accel_y, accel_z, err := sensor.ReadAcceleration()
-		if err != nil {
-			println("Failed to read accel", err.Error())
-		}
-		println("ACCEL_X:", accel_x, " ACCEL_Y:", accel_y, " ACCEL_Z:", accel_z)
-
-		mag_x, mag_y, mag_z, err := sensor.ReadMagneticField()
-		if err != nil {
-			println("Failed to read mag", err.Error())
-		}
-		println("MAG_X:", mag_x, " MAG_Y:", mag_y, " MAG_Z:", mag_z)
-
-		pitch, roll, _ := sensor.ReadPitchRoll()
-		println("Pitch:", float32(pitch), " Roll:", float32(roll))
-
-		heading, _ := sensor.ReadCompass()
-		println("Heading:", float32(heading), "degrees")
-
-		temp, _ := sensor.ReadTemperature()
-		println("Temperature:", float32(temp)/1000, "*C")
-
-		println("\n")
-		time.Sleep(time.Millisecond * 250)
-	}
-
-}
@@ -1,34 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/max6675"
-)
-
-// example for reading temperature from a thermocouple
-func main() {
-	// Pins are for an Adafruit Feather nRF52840 Express
-	machine.D5.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	machine.D5.High()
-
-	machine.SPI0.Configure(machine.SPIConfig{
-		Frequency: 1_000_000,
-		SCK:       machine.SPI0_SCK_PIN,
-		SDI:       machine.SPI0_SDI_PIN,
-	})
-
-	thermocouple := max6675.NewDevice(machine.SPI0, machine.D5)
-
-	for {
-		temp, err := thermocouple.Read()
-		if err != nil {
-			println(err)
-			return
-		}
-		fmt.Printf("%0.02f C : %0.02f F\n", temp, (temp*9/5)+32)
-		time.Sleep(time.Second)
-	}
-}
@@ -21,7 +21,7 @@ func main() {
 		SDI:       machine.SPI0_SDI_PIN,
 		Mode:      0})
 	can := mcp2515.New(spi, csPin)
-	can.Configure(mcp2515.Configuration{})
+	can.Configure()
 	err := can.Begin(mcp2515.CAN500kBps, mcp2515.Clock8MHz)
 	if err != nil {
 		failMessage(err.Error())
@@ -1,48 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/mcp9808"
-)
-
-func main() {
-
-	//tinygo monitor
-	time.Sleep(time.Millisecond * 5000)
-
-	//Configure I2C (in this case, I2C0 on RPI Pico), and wire the module accordingly
-	machine.I2C0.Configure(machine.I2CConfig{
-		SCL: machine.GP1,
-		SDA: machine.GP0,
-	})
-
-	//Create sensor
-	sensor := mcp9808.New(machine.I2C0)
-	if !sensor.Connected() {
-		println("MCP9808 not found")
-		return
-	} else {
-		println("MCP9808 found")
-	}
-
-	time.Sleep(time.Millisecond * 1000)
-
-	//Set resolution
-	sensor.SetResolution(mcp9808.Maximum)
-
-	time.Sleep(time.Millisecond * 1000)
-
-	//Read temp.
-	temp, err := sensor.ReadTemperature()
-	if err != nil {
-		println("MCP9808 error reading temperature")
-		println(err.Error())
-		return
-	} else {
-		fmt.Printf("Temperature: %.2f \n", temp)
-	}
-	return
-}
@@ -1,88 +0,0 @@
-// This example gets an URL using http.Get().  URL scheme can be http or https.
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-//
-// Some targets (Arduino Nano33 IoT) don't have enough SRAM to run http.Get().
-// Use the following for those targets:
-//
-//     examples/net/webclient (for HTTP)
-//     examples/net/tlsclient (for HTTPS)
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-)
-
-func main() {
-
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	name := "John Doe"
-	occupation := "gardener"
-
-	params := "name=" + url.QueryEscape(name) + "&" +
-		"occupation=" + url.QueryEscape(occupation)
-
-	path := fmt.Sprintf("https://httpbin.org/get?%s", params)
-
-	cnt := 0
-	for {
-		fmt.Printf("Getting %s\r\n\r\n", path)
-		resp, err := http.Get(path)
-		if err != nil {
-			fmt.Printf("%s\r\n", err.Error())
-			time.Sleep(10 * time.Second)
-			continue
-		}
-
-		fmt.Printf("%s %s\r\n", resp.Proto, resp.Status)
-		for k, v := range resp.Header {
-			fmt.Printf("%s: %s\r\n", k, strings.Join(v, " "))
-		}
-		fmt.Printf("\r\n")
-
-		body, err := io.ReadAll(resp.Body)
-		println(string(body))
-		resp.Body.Close()
-
-		cnt++
-		fmt.Printf("-------- %d --------\r\n", cnt)
-		time.Sleep(10 * time.Second)
-	}
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,68 +0,0 @@
-// This example gets an URL using http.Head().  URL scheme can be http or https.
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-//
-// Some targets (Arduino Nano33 IoT) don't have enough SRAM to run http.Head().
-// Use the following for those targets:
-//
-//     examples/net/webclient (for HTTP)
-//     examples/net/tlsclient (for HTTPS)
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"log"
-	"machine"
-	"net/http"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	url  string = "https://httpbin.org"
-)
-
-func main() {
-
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	resp, err := http.Head(url)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer resp.Body.Close()
-
-	var buf bytes.Buffer
-	if err := resp.Write(&buf); err != nil {
-		log.Fatal(err)
-	}
-	fmt.Println(string(buf.Bytes()))
-
-	link.NetDisconnect()
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,72 +0,0 @@
-// This example posts an URL using http.Post().  URL scheme can be http or https.
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-//
-// Some targets (Arduino Nano33 IoT) don't have enough SRAM to run http.Post().
-// Use the following for those targets:
-//
-//     examples/net/webclient (for HTTP)
-//     examples/net/tlsclient (for HTTPS)
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net/http"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-)
-
-func main() {
-
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	path := "https://httpbin.org/post"
-	data := []byte("{\"name\":\"John Doe\",\"occupation\":\"gardener\"}")
-
-	resp, err := http.Post(path, "application/json", bytes.NewBuffer(data))
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	fmt.Println(string(body))
-
-	link.NetDisconnect()
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,73 +0,0 @@
-// This example posts an URL using http.PostForm().  URL scheme can be http or https.
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-//
-// Some targets (Arduino Nano33 IoT) don't have enough SRAM to run
-// http.PostForm().  Use the following for those targets:
-//
-//     examples/net/webclient (for HTTP)
-//     examples/net/tlsclient (for HTTPS)
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net/http"
-	"net/url"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-)
-
-func main() {
-
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	path := "https://httpbin.org/post"
-	data := url.Values{
-		"name":       {"John Doe"},
-		"occupation": {"gardener"},
-	}
-
-	resp, err := http.PostForm(path, data)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	fmt.Println(string(body))
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,146 +0,0 @@
-// This example is an MQTT client built with the natiu-mqtt package.  It sends
-// machine.CPUFrequency() readings to the broker every second for 10 seconds.
-//
-// Note: It may be necessary to increase the stack size when using
-// paho.mqtt.golang.  Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal || challenger_rp2040 || comboat_fw
-
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"math/rand"
-	"net"
-	"time"
-
-	mqtt "github.com/soypat/natiu-mqtt"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid   string
-	pass   string
-	broker string = "test.mosquitto.org:1883"
-	topic  string = "cpu/freq"
-)
-
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	clientId := "tinygo-client-" + randomString(10)
-	fmt.Printf("ClientId: %s\n", clientId)
-
-	// Get a transport for MQTT packets
-	fmt.Printf("Connecting to MQTT broker at %s\n", broker)
-	conn, err := net.Dial("tcp", broker)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer conn.Close()
-
-	// Create new client
-	client := mqtt.NewClient(mqtt.ClientConfig{
-		Decoder: mqtt.DecoderNoAlloc{make([]byte, 1500)},
-		OnPub: func(_ mqtt.Header, _ mqtt.VariablesPublish, r io.Reader) error {
-			message, _ := io.ReadAll(r)
-			fmt.Printf("Message %s received on topic %s\n", string(message), topic)
-			return nil
-		},
-	})
-
-	// Connect client
-	var varconn mqtt.VariablesConnect
-	varconn.SetDefaultMQTT([]byte(clientId))
-	ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
-	err = client.Connect(ctx, conn, &varconn)
-	if err != nil {
-		log.Fatal("failed to connect: ", err)
-	}
-
-	// Subscribe to topic
-	ctx, _ = context.WithTimeout(context.Background(), 10*time.Second)
-	err = client.Subscribe(ctx, mqtt.VariablesSubscribe{
-		PacketIdentifier: 23,
-		TopicFilters: []mqtt.SubscribeRequest{
-			{TopicFilter: []byte(topic), QoS: mqtt.QoS0},
-		},
-	})
-	if err != nil {
-		log.Fatal("failed to subscribe to", topic, err)
-	}
-	fmt.Printf("Subscribed to topic %s\n", topic)
-
-	// Publish on topic
-	pubFlags, _ := mqtt.NewPublishFlags(mqtt.QoS0, false, false)
-	pubVar := mqtt.VariablesPublish{
-		TopicName: []byte(topic),
-	}
-
-	for i := 0; i < 10; i++ {
-		if !client.IsConnected() {
-			log.Fatal("client disconnected: ", client.Err())
-		}
-
-		freq := float32(machine.CPUFrequency()) / 1000000
-		payload := fmt.Sprintf("%.02fMhz", freq)
-
-		pubVar.PacketIdentifier++
-		err = client.PublishPayload(pubFlags, pubVar, []byte(payload))
-		if err != nil {
-			log.Fatal("error transmitting message: ", err)
-		}
-
-		time.Sleep(time.Second)
-
-		conn.SetReadDeadline(time.Now().Add(10 * time.Second))
-		err = client.HandleNext()
-		if err != nil {
-			log.Fatal("handle next: ", err)
-		}
-
-	}
-
-	client.Disconnect(errors.New("disconnected gracefully"))
-
-	for {
-		select {}
-	}
-}
-
-// Returns an int >= min, < max
-func randomInt(min, max int) int {
-	return min + rand.Intn(max-min)
-}
-
-// Generate a random string of A-Z chars with len = l
-func randomString(len int) string {
-	bytes := make([]byte, len)
-	for i := 0; i < len; i++ {
-		bytes[i] = byte(randomInt(65, 90))
-	}
-	return string(bytes)
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,114 +0,0 @@
-// This example is an MQTT client built with the paho-mqtt package.  It sends
-// machine.CPUFrequency() readings to the broker every second for 10 seconds.
-//
-// Note: It may be necessary to increase the stack size when using
-// paho.mqtt.golang.  Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal || challenger_rp2040 || comboat_fw
-
-package main
-
-import (
-	"fmt"
-	"log"
-	"machine"
-	"math/rand"
-	"time"
-
-	mqtt "github.com/eclipse/paho.mqtt.golang"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid   string
-	pass   string
-	broker string = "tcp://test.mosquitto.org:1883"
-)
-
-var messagePubHandler mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message) {
-	fmt.Printf("Message %s received on topic %s\n", msg.Payload(), msg.Topic())
-}
-
-var connectHandler mqtt.OnConnectHandler = func(client mqtt.Client) {
-	fmt.Println("Connected")
-}
-
-var connectionLostHandler mqtt.ConnectionLostHandler = func(client mqtt.Client, err error) {
-	fmt.Printf("Connection Lost: %s\n", err.Error())
-}
-
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	clientId := "tinygo-client-" + randomString(10)
-	fmt.Printf("ClientId: %s\n", clientId)
-
-	options := mqtt.NewClientOptions()
-	options.AddBroker(broker)
-	options.SetClientID(clientId)
-	options.SetDefaultPublishHandler(messagePubHandler)
-	options.OnConnect = connectHandler
-	options.OnConnectionLost = connectionLostHandler
-
-	fmt.Printf("Connecting to MQTT broker at %s\n", broker)
-	client := mqtt.NewClient(options)
-	token := client.Connect()
-	if token.Wait() && token.Error() != nil {
-		panic(token.Error())
-	}
-
-	topic := "cpu/freq"
-	token = client.Subscribe(topic, 1, nil)
-	if token.Wait() && token.Error() != nil {
-		panic(token.Error())
-	}
-	fmt.Printf("Subscribed to topic %s\n", topic)
-
-	for i := 0; i < 10; i++ {
-		freq := float32(machine.CPUFrequency()) / 1000000
-		payload := fmt.Sprintf("%.02fMhz", freq)
-		token = client.Publish(topic, 0, false, payload)
-		if token.Wait() && token.Error() != nil {
-			panic(token.Error())
-		}
-		time.Sleep(time.Second)
-	}
-
-	client.Disconnect(100)
-
-	for {
-		select {}
-	}
-}
-
-// Returns an int >= min, < max
-func randomInt(min, max int) int {
-	return min + rand.Intn(max-min)
-}
-
-// Generate a random string of A-Z chars with len = l
-func randomString(len int) string {
-	bytes := make([]byte, len)
-	for i := 0; i < len; i++ {
-		bytes[i] = byte(randomInt(65, 90))
-	}
-	return string(bytes)
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,115 +0,0 @@
-// This is an example of an NTP client.
-//
-// It creates a UDP connection to request the current time and parse the
-// response from a NTP server.  The system time is set to NTP time.
-
-//go:build ninafw || wioterminal || challenger_rp2040 || comboat_fw
-
-package main
-
-import (
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net"
-	"runtime"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	// IP address of the server aka "hub". Replace with your own info.
-	ntpHost string = "0.pool.ntp.org:123"
-)
-
-const NTP_PACKET_SIZE = 48
-
-var response = make([]byte, NTP_PACKET_SIZE)
-
-func main() {
-
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	conn, err := net.Dial("udp", ntpHost)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	println("Requesting NTP time...")
-
-	t, err := getCurrentTime(conn)
-	if err != nil {
-		log.Fatal(fmt.Sprintf("Error getting current time: %v", err))
-	} else {
-		message("NTP time: %v", t)
-	}
-
-	conn.Close()
-	link.NetDisconnect()
-
-	runtime.AdjustTimeOffset(-1 * int64(time.Since(t)))
-
-	for {
-		message("Current time: %v", time.Now())
-		time.Sleep(time.Minute)
-	}
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
-
-func getCurrentTime(conn net.Conn) (time.Time, error) {
-	if err := sendNTPpacket(conn); err != nil {
-		return time.Time{}, err
-	}
-
-	n, err := conn.Read(response)
-	if err != nil && err != io.EOF {
-		return time.Time{}, err
-	}
-	if n != NTP_PACKET_SIZE {
-		return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
-	}
-
-	return parseNTPpacket(response), nil
-}
-
-func sendNTPpacket(conn net.Conn) error {
-	var request = [48]byte{
-		0xe3,
-	}
-
-	_, err := conn.Write(request[:])
-	return err
-}
-
-func parseNTPpacket(r []byte) time.Time {
-	// the timestamp starts at byte 40 of the received packet and is four bytes,
-	// this is NTP time (seconds since Jan 1 1900):
-	t := uint32(r[40])<<24 | uint32(r[41])<<16 | uint32(r[42])<<8 | uint32(r[43])
-	const seventyYears = 2208988800
-	return time.Unix(int64(t-seventyYears), 0)
-}
-
-func message(format string, args ...interface{}) {
-	println(fmt.Sprintf(format, args...), "\r")
-}
@@ -1,30 +0,0 @@
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"log"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-)
-
-func init() {
-	time.Sleep(2 * time.Second)
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-}
@@ -1,120 +0,0 @@
-// This example is the classic snake network test.  The snake is feed a steady
-// diet of pkts and the pkts work themselves thru the snake segments and exit
-// the tail.  Each snake segment is a TCP socket connection to a server.  The
-// server echos pkts received back to the snake, and serves each segment on a
-// different port.  (See server/main.go for server).
-//
-//                snake     |    server
-//                          |
-//            head ----->---|-->--+
-//             seg a        |     |
-//                    +---<-|--<--+
-//                    |     |
-//                    +-->--|-->--+
-//             seg b        |     |
-//                    +---<-|--<--+
-//                    |     |
-//                    +-->--|-->--+
-//             seg c        |     |
-//                    +---<-|--<--+
-//                    |     |
-//                    +-->--|-->--+
-//              ...         |     |
-//                    +---<-|--<--+
-//                    |     |
-//                    +-->--|-->--+
-//             seg n        |     |
-//            tail -------<-|--<--+
-//                          |
-
-// The snake segments are linked by channels and each segment is run as a go
-// func.  This forces segments to connect and run concurrently, which is a good
-// test of the underlying driver's ability to handle concurrent connections.
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	_ "embed"
-	"fmt"
-	"log"
-	"net"
-	"strings"
-	"time"
-)
-
-//go:embed main.go
-var code string
-
-var (
-	server string = "10.0.0.100:8080"
-)
-
-func segment(in chan []byte, out chan []byte) {
-	var buf [512]byte
-	for {
-		c, err := net.Dial("tcp", server)
-		for ; err != nil; c, err = net.Dial("tcp", server) {
-			println(err.Error())
-			time.Sleep(5 * time.Second)
-		}
-		for {
-			select {
-			case msg := <-in:
-				_, err := c.Write(msg)
-				if err != nil {
-					log.Fatal(err.Error())
-				}
-				time.Sleep(100 * time.Millisecond)
-				n, err := c.Read(buf[:])
-				if err != nil {
-					log.Fatal(err.Error())
-				}
-				out <- buf[:n]
-			}
-		}
-	}
-}
-
-func feedit(head chan []byte) {
-	for i := 0; i < 100; i++ {
-		head <- []byte(fmt.Sprintf("\n---%d---\n", i))
-		for _, line := range strings.Split(code, "\n") {
-			if len(line) == 0 {
-				line = " "
-			}
-			head <- []byte(line)
-		}
-	}
-}
-
-var head = make(chan []byte)
-var a = make(chan []byte)
-var b = make(chan []byte)
-var c = make(chan []byte)
-var d = make(chan []byte)
-var e = make(chan []byte)
-var f = make(chan []byte)
-var tail = make(chan []byte)
-
-func main() {
-
-	// The snake
-	go segment(head, a)
-	go segment(a, b)
-	go segment(b, c)
-	go segment(c, d)
-	go segment(d, e)
-	go segment(e, f)
-	go segment(f, tail)
-
-	go feedit(head)
-
-	for {
-		select {
-		case msg := <-tail:
-			println(string(msg))
-		}
-	}
-}
@@ -1,34 +0,0 @@
-package main
-
-import (
-	"io"
-	"log"
-	"net"
-)
-
-func main() {
-	// Listen for connections
-	l, err := net.Listen("tcp", ":8080")
-	if err != nil {
-		log.Fatal(err.Error())
-	}
-	defer l.Close()
-	println("Listening on port", ":8080")
-	for {
-		// Wait for a connection
-		conn, err := l.Accept()
-		if err != nil {
-			log.Fatal(err)
-		}
-		println("Accepted connection from", conn.RemoteAddr().String())
-		// Service the new connection in a goroutine.
-		// The loop then returns to accepting, so that
-		// multiple connections may be served concurrently
-		go func(c net.Conn) {
-			// Echo all incoming data
-			io.Copy(c, c)
-			// Shut down the connection
-			c.Close()
-		}(conn)
-	}
-}
@@ -1,108 +0,0 @@
-// This example opens a TCP connection and sends some data using netdev sockets.
-//
-// You can open a server to accept connections from this program using:
-//
-// nc -lk 8080
-
-//go:build ninafw || wioterminal || challenger_rp2040 || comboat_fw
-
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"log"
-	"machine"
-	"net/netip"
-	"time"
-
-	"tinygo.org/x/drivers/netdev"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	addr string = "10.0.0.100:8080"
-)
-
-var buf = &bytes.Buffer{}
-var link netlink.Netlinker
-var dev netdev.Netdever
-
-func main() {
-
-	waitSerial()
-
-	link, dev = probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for {
-		sendBatch()
-		time.Sleep(500 * time.Millisecond)
-	}
-}
-
-func sendBatch() {
-
-	addrPort, _ := netip.ParseAddrPort(addr)
-
-	// make TCP connection
-	message("---------------\r\nDialing TCP connection")
-	fd, _ := dev.Socket(netdev.AF_INET, netdev.SOCK_STREAM, netdev.IPPROTO_TCP)
-	err := dev.Connect(fd, "", addrPort)
-	for ; err != nil; err = dev.Connect(fd, "", addrPort) {
-		message(err.Error())
-		time.Sleep(5 * time.Second)
-	}
-
-	n := 0
-	w := 0
-	start := time.Now()
-
-	// send data
-	message("Sending data")
-
-	for i := 0; i < 1000; i++ {
-		buf.Reset()
-		fmt.Fprint(buf,
-			"\r---------------------------- i == ", i, " ----------------------------"+
-				"\r---------------------------- i == ", i, " ----------------------------")
-		if w, err = dev.Send(fd, buf.Bytes(), 0, time.Time{}); err != nil {
-			println("error:", err.Error(), "\r")
-			break
-		}
-		n += w
-	}
-
-	buf.Reset()
-	ms := time.Now().Sub(start).Milliseconds()
-	fmt.Fprint(buf, "\nWrote ", n, " bytes in ", ms, " ms\r\n")
-	message(buf.String())
-
-	if _, err := dev.Send(fd, buf.Bytes(), 0, time.Time{}); err != nil {
-		println("error:", err.Error(), "\r")
-	}
-
-	println("Disconnecting TCP...")
-	dev.Close(fd)
-}
-
-func message(msg string) {
-	println(msg, "\r")
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
@@ -1,70 +0,0 @@
-// This example listens on port :8080 for client connections.  Bytes
-// received from the client are echo'ed back to the client.  Multiple
-// clients can connect as the same time, each consuming a client socket,
-// and being serviced by it's own go func.
-//
-// Example test using nc as client to copy file:
-//
-// $ nc 10.0.0.2 8080 <file >copy ; cmp file copy
-
-//go:build ninafw || wioterminal
-
-package main
-
-import (
-	"io"
-	"log"
-	"net"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	port string = ":8080"
-)
-
-var buf [1024]byte
-
-func echo(conn net.Conn) {
-	println("Client", conn.RemoteAddr(), "connected")
-	defer conn.Close()
-	_, err := io.CopyBuffer(conn, conn, buf[:])
-	if err != nil && err != io.EOF {
-		log.Fatal(err.Error())
-	}
-	println("Client", conn.RemoteAddr(), "closed")
-}
-
-func main() {
-
-	time.Sleep(2 * time.Second)
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	println("Starting TCP server listening on", port)
-	l, err := net.Listen("tcp", port)
-	if err != nil {
-		log.Fatal(err.Error())
-	}
-	defer l.Close()
-
-	for {
-		conn, err := l.Accept()
-		if err != nil {
-			log.Fatal(err.Error())
-		}
-		go echo(conn)
-	}
-}
@@ -1,106 +0,0 @@
-// This example uses TLS to send an HTTPS request to retrieve a webpage
-//
-// You shall see "strict-transport-security" header in the response,
-// this confirms communication is indeed over HTTPS
-//
-// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"bufio"
-	"crypto/tls"
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net"
-	"strings"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	// HTTPS server address to hit with a GET / request
-	address string = "httpbin.org:443"
-)
-
-var conn net.Conn
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
-
-func check(err error) {
-	if err != nil {
-		println("Hit an error:", err.Error())
-		panic("BYE")
-	}
-}
-
-func readResponse() {
-	r := bufio.NewReader(conn)
-	resp, err := io.ReadAll(r)
-	check(err)
-	println(string(resp))
-}
-
-func closeConnection() {
-	conn.Close()
-}
-
-func dialConnection() {
-	var err error
-
-	println("\r\n---------------\r\nDialing TLS connection")
-	conn, err = tls.Dial("tcp", address, nil)
-	for ; err != nil; conn, err = tls.Dial("tcp", address, nil) {
-		println("Connection failed:", err.Error())
-		time.Sleep(5 * time.Second)
-	}
-	println("Connected!\r")
-}
-
-func makeRequest() {
-	print("Sending HTTPS request...")
-	w := bufio.NewWriter(conn)
-	fmt.Fprintln(w, "GET /get HTTP/1.1")
-	fmt.Fprintln(w, "Host:", strings.Split(address, ":")[0])
-	fmt.Fprintln(w, "User-Agent: TinyGo")
-	fmt.Fprintln(w, "Connection: close")
-	fmt.Fprintln(w)
-	check(w.Flush())
-	println("Sent!\r\n\r")
-}
-
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for i := 0; ; i++ {
-		dialConnection()
-		makeRequest()
-		readResponse()
-		closeConnection()
-		println("--------", i, "--------\r\n")
-		time.Sleep(10 * time.Second)
-	}
-}
@@ -1,120 +0,0 @@
-// This example runs on wioterminal.  It gets an URL using http.Get() and
-// displays the output on the wioterminal LCD screen.
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-
-//go:build wioterminal
-
-package main
-
-import (
-	"fmt"
-	"image/color"
-	"io"
-	"log"
-	"machine"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-
-	"tinygo.org/x/drivers/ili9341"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-	"tinygo.org/x/tinyfont/proggy"
-	"tinygo.org/x/tinyterm"
-)
-
-var (
-	ssid string
-	pass string
-)
-
-var (
-	display = ili9341.NewSPI(
-		machine.SPI3,
-		machine.LCD_DC,
-		machine.LCD_SS_PIN,
-		machine.LCD_RESET,
-	)
-
-	backlight = machine.LCD_BACKLIGHT
-
-	terminal = tinyterm.NewTerminal(display)
-
-	black = color.RGBA{0, 0, 0, 255}
-	white = color.RGBA{255, 255, 255, 255}
-	red   = color.RGBA{255, 0, 0, 255}
-	blue  = color.RGBA{0, 0, 255, 255}
-	green = color.RGBA{0, 255, 0, 255}
-
-	font = &proggy.TinySZ8pt7b
-)
-
-func main() {
-
-	machine.SPI3.Configure(machine.SPIConfig{
-		SCK:       machine.LCD_SCK_PIN,
-		SDO:       machine.LCD_SDO_PIN,
-		SDI:       machine.LCD_SDI_PIN,
-		Frequency: 40000000,
-	})
-
-	display.Configure(ili9341.Config{})
-	display.FillScreen(black)
-
-	backlight.Configure(machine.PinConfig{machine.PinOutput})
-	backlight.High()
-
-	terminal.Configure(&tinyterm.Config{
-		Font:       font,
-		FontHeight: 10,
-		FontOffset: 6,
-	})
-
-	fmt.Fprintf(terminal, "Connecting to %s...\r\n", ssid)
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	name := "John Doe"
-	occupation := "gardener"
-
-	params := "name=" + url.QueryEscape(name) + "&" +
-		"occupation=" + url.QueryEscape(occupation)
-
-	path := fmt.Sprintf("https://httpbin.org/get?%s", params)
-
-	cnt := 0
-	for {
-		fmt.Fprintf(terminal, "Getting %s\r\n\r\n", path)
-		resp, err := http.Get(path)
-		if err != nil {
-			fmt.Fprintf(terminal, "%s\r\n", err.Error())
-			time.Sleep(10 * time.Second)
-			continue
-		}
-
-		fmt.Fprintf(terminal, "%s %s\r\n", resp.Proto, resp.Status)
-		for k, v := range resp.Header {
-			fmt.Fprintf(terminal, "%s: %s\r\n", k, strings.Join(v, " "))
-		}
-		fmt.Fprintf(terminal, "\r\n")
-
-		body, err := io.ReadAll(resp.Body)
-		fmt.Fprintf(terminal, string(body))
-		resp.Body.Close()
-
-		cnt++
-		fmt.Fprintf(terminal, "-------- %d --------\r\n", cnt)
-		time.Sleep(10 * time.Second)
-	}
-}
@@ -1,117 +0,0 @@
-// This example uses TCP to send an HTTP request to retrieve a webpage.  The
-// HTTP request is hand-rolled to avoid the overhead of using http.Get() from
-// the "net/http" package.  See example/net/http-get for the full http.Get()
-// functionality.
-//
-// Example HTTP server:
-// ---------------------------------------------------------------------------
-// package main
-//
-// import "net/http"
-//
-// func main() {
-//        http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-//                w.Write([]byte("hello"))
-//        })
-//        http.ListenAndServe(":8080", nil)
-// }
-// ---------------------------------------------------------------------------
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"log"
-	"machine"
-	"net"
-	"strings"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	// HTTP server address to hit with a GET / request
-	address string = "10.0.0.100:8080"
-)
-
-var conn net.Conn
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
-
-func dialConnection() {
-	var err error
-
-	println("\r\n---------------\r\nDialing TCP connection")
-	conn, err = net.Dial("tcp", address)
-	for ; err != nil; conn, err = net.Dial("tcp", address) {
-		println("Connection failed:", err.Error())
-		time.Sleep(5 * time.Second)
-	}
-	println("Connected!\r")
-}
-
-func check(err error) {
-	if err != nil {
-		println("Hit an error:", err.Error())
-		panic("BYE")
-	}
-}
-
-func makeRequest() {
-	println("Sending HTTP request...")
-	w := bufio.NewWriter(conn)
-	fmt.Fprintln(w, "GET / HTTP/1.1")
-	fmt.Fprintln(w, "Host:", strings.Split(address, ":")[0])
-	fmt.Fprintln(w, "User-Agent: TinyGo")
-	fmt.Fprintln(w, "Connection: close")
-	fmt.Fprintln(w)
-	check(w.Flush())
-	println("Sent!\r\n\r")
-}
-
-func readResponse() {
-	r := bufio.NewReader(conn)
-	resp, err := io.ReadAll(r)
-	check(err)
-	println(string(resp))
-}
-
-func closeConnection() {
-	conn.Close()
-}
-
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for i := 0; ; i++ {
-		dialConnection()
-		makeRequest()
-		readResponse()
-		closeConnection()
-		println("--------", i, "--------\r\n")
-		time.Sleep(10 * time.Second)
-	}
-}
@@ -1,64 +0,0 @@
-// This example is a websocket client.  It connects to a websocket server
-// which echos messages back to the client.  For server, see
-//
-//     https://pkg.go.dev/golang.org/x/net/websocket#example-Handler
-//
-// Note: It may be necessary to increase the stack size when using
-// "golang.org/x/net/websocket".  Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal || comboat_fw
-
-package main
-
-import (
-	"fmt"
-	"log"
-	"machine"
-	"time"
-
-	"golang.org/x/net/websocket"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	url  string = "ws://10.0.0.100:8080/echo"
-)
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
-
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	origin := "http://localhost/"
-	ws, err := websocket.Dial(url, "", origin)
-	if err != nil {
-		log.Fatal(err)
-	}
-	if _, err := ws.Write([]byte("hello, world!\n")); err != nil {
-		log.Fatal(err)
-	}
-	var msg = make([]byte, 512)
-	var n int
-	if n, err = ws.Read(msg); err != nil {
-		log.Fatal(err)
-	}
-	fmt.Printf("Received: %s", msg[:n])
-}
@@ -1,62 +0,0 @@
-// This example is a websocket server.  It listens for websocket clients
-// to connect and echos messages back to the client.  For client, see
-//
-//     https://pkg.go.dev/golang.org/x/net/websocket#example-Dial
-//
-// Note: It may be necessary to increase the stack size when using
-// "golang.org/x/net/websocket".  Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal
-
-package main
-
-import (
-	"io"
-	"log"
-	"machine"
-	"net/http"
-	"time"
-
-	"golang.org/x/net/websocket"
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	port string = ":8080"
-)
-
-// Echo the data received on the WebSocket.
-func EchoServer(ws *websocket.Conn) {
-	io.Copy(ws, ws)
-}
-
-// Wait for user to open serial console
-func waitSerial() {
-	for !machine.Serial.DTR() {
-		time.Sleep(100 * time.Millisecond)
-	}
-}
-
-// This example demonstrates a trivial echo server.
-func main() {
-	waitSerial()
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	http.Handle("/echo", websocket.Handler(EchoServer))
-	err = http.ListenAndServe(port, nil)
-	if err != nil {
-		panic("ListenAndServe: " + err.Error())
-	}
-}
@@ -1,28 +0,0 @@
-<html>
-<head>
-	<title>TinyGo - A Go Compiler For Small Places</title>
-	<style>
-		body {
-			background-color: rgb(4, 111, 143);
-			text-align: center;
-			display: flex;
-			flex-direction: column;
-			align-items: center;
-		}
-		img {
-			display: block;
-			margin: 0 auto;
-			width: 299px;
-			height: 255px;
-		}
-		h1 {
-			color: white;
-			text-align: center;
-		}
-	</style>
-</head>
-<body>
-	<h1>TinyGo - A Go Compiler For Small Places</h1>
-	<img src="images/tinygo-logo.png">
-</body>
-</html>
@@ -1,49 +0,0 @@
-// This example is an HTTP server serving up a static file system
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal
-
-package main
-
-import (
-	"embed"
-	"log"
-	"net/http"
-	"time"
-
-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
-)
-
-var (
-	ssid string
-	pass string
-	port string = ":80"
-)
-
-//go:embed index.html main.go images
-var fs embed.FS
-
-func main() {
-	// wait a bit for console
-	time.Sleep(2 * time.Second)
-
-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	hfs := http.FileServer(http.FS(fs))
-	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		hfs.ServeHTTP(w, r)
-	})
-
-	log.Fatal(http.ListenAndServe(port, nil))
-}
@@ -1,28 +0,0 @@
-// Connects to a pcf8591 ADC via I2C.
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/pcf8591"
-)
-
-var (
-	i2c = machine.I2C0
-)
-
-func main() {
-	i2c.Configure(machine.I2CConfig{})
-	adc := pcf8591.New(i2c)
-	adc.Configure()
-
-	// get "CH0" aka "machine.ADC" interface to channel 0 from ADC.
-	p := adc.CH0
-
-	for {
-		val := p.Get()
-		println(val)
-		time.Sleep(50 * time.Millisecond)
-	}
-}
@@ -0,0 +1,131 @@
+// This is a sensor station that uses a RTL8720DN running on the device UART2.
+// It creates an MQTT connection that publishes a message every second
+// to an MQTT broker.
+//
+// In other words:
+// Your computer <--> USB-CDC <--> MCU <--> UART2 <--> RTL8720DN <--> Internet <--> MQTT broker.
+//
+// You must install the Paho MQTT package to build this program:
+//
+//	go get -u github.com/eclipse/paho.mqtt.golang
+//
+// You can check that mqttpub is running successfully with the following command.
+//
+//	mosquitto_sub -h test.mosquitto.org -t tinygo
+package main
+
+import (
+	"machine"
+
+	"fmt"
+	"math/rand"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/net/mqtt"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    debug = true
+//    server = "tinygo.org"
+// }
+
+var (
+	ssid   string
+	pass   string
+	server string = "tcp://test.mosquitto.org:1883"
+	debug         = false
+)
+
+var buf [0x400]byte
+
+var lastRequestTime time.Time
+var conn net.Conn
+var adaptor *rtl8720dn.Driver
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+var (
+	topic = "tinygo"
+)
+
+func run() error {
+	// change the UART and pins as needed for platforms other than the WioTerminal.
+	adaptor = rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	rand.Seed(time.Now().UnixNano())
+
+	opts := mqtt.NewClientOptions()
+	opts.AddBroker(server).SetClientID("tinygo-client-" + randomString(10))
+
+	println("Connectng to MQTT...")
+	cl := mqtt.NewClient(opts)
+	if token := cl.Connect(); token.Wait() && token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	for i := 0; ; i++ {
+		println("Publishing MQTT message...")
+		data := []byte(fmt.Sprintf(`{"e":[{"n":"hello %d","v":101}]}`, i))
+		token := cl.Publish(topic, 0, false, data)
+		token.Wait()
+		if err := token.Error(); err != nil {
+			return err
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting MQTT...")
+	cl.Disconnect(100)
+
+	println("Done.")
+
+	return nil
+}
+
+// Returns an int >= min, < max
+func randomInt(min, max int) int {
+	return min + rand.Intn(max-min)
+}
+
+// Generate a random string of A-Z chars with len = l
+func randomString(len int) string {
+	bytes := make([]byte, len)
+	for i := 0; i < len; i++ {
+		bytes[i] = byte(randomInt(65, 90))
+	}
+	return string(bytes)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,154 @@
+// This is a sensor station that uses a RTL8720DN running on the device UART2.
+// It creates an MQTT connection that publishes a message every second
+// to an MQTT broker.
+//
+// In other words:
+// Your computer <--> USB-CDC <--> MCU <--> UART2 <--> RTL8720DN <--> Internet <--> MQTT broker.
+//
+// You must also install the Paho MQTT package to build this program:
+//
+//	go get -u github.com/eclipse/paho.mqtt.golang
+//
+// You can check that mqttpub/mqttsub is running successfully with the following command.
+//
+//	mosquitto_sub -h test.mosquitto.org -t tinygo/tx
+//	mosquitto_pub -h test.mosquitto.org -t tinygo/rx -m "hello world"
+package main
+
+import (
+	"machine"
+
+	"fmt"
+	"math/rand"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/net/mqtt"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    debug = true
+//    server = "tinygo.org"
+// }
+
+var (
+	ssid   string
+	pass   string
+	server string = "tcp://test.mosquitto.org:1883"
+	debug         = false
+)
+
+var buf [0x400]byte
+
+var lastRequestTime time.Time
+var conn net.Conn
+var adaptor *rtl8720dn.Driver
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+// change these to connect to a different UART or pins for the ESP8266/ESP32
+var (
+	cl      mqtt.Client
+	topicTx = "tinygo/tx"
+	topicRx = "tinygo/rx"
+)
+
+func subHandler(client mqtt.Client, msg mqtt.Message) {
+	fmt.Printf("[%s]  ", msg.Topic())
+	fmt.Printf("%s\r\n", msg.Payload())
+}
+
+func run() error {
+	// change the UART and pins as needed for platforms other than the WioTerminal.
+	adaptor = rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	rand.Seed(time.Now().UnixNano())
+
+	opts := mqtt.NewClientOptions()
+	opts.AddBroker(server).SetClientID("tinygo-client-" + randomString(10))
+
+	println("Connecting to MQTT broker at", server)
+	cl = mqtt.NewClient(opts)
+	if token := cl.Connect(); token.Wait() && token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	// subscribe
+	token := cl.Subscribe(topicRx, 0, subHandler)
+	token.Wait()
+	if token.Error() != nil {
+		failMessage(token.Error().Error())
+	}
+
+	go publishing()
+
+	select {}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting MQTT...")
+	cl.Disconnect(100)
+
+	println("Done.")
+
+	return nil
+}
+
+func publishing() {
+	for i := 0; ; i++ {
+		println("Publishing MQTT message...")
+		data := []byte(fmt.Sprintf(`{"e":[{"n":"hello %d","v":101}]}`, i))
+		token := cl.Publish(topicTx, 0, false, data)
+		token.Wait()
+		if token.Error() != nil {
+			println(token.Error().Error())
+		}
+
+		time.Sleep(20 * 100 * time.Millisecond)
+	}
+}
+
+// Returns an int >= min, < max
+func randomInt(min, max int) int {
+	return min + rand.Intn(max-min)
+}
+
+// Generate a random string of A-Z chars with len = l
+func randomString(len int) string {
+	bytes := make([]byte, len)
+	for i := 0; i < len; i++ {
+		bytes[i] = byte(randomInt(65, 90))
+	}
+	return string(bytes)
+}
+
+func failMessage(msg string) {
+	for {
+		println(msg)
+		time.Sleep(1 * time.Second)
+	}
+}
@@ -0,0 +1,143 @@
+// This is an example of using the rtl8720dn driver to implement a NTP client.
+// It creates a UDP connection to request the current time and parse the
+// response from a NTP server.
+package main
+
+import (
+	"machine"
+
+	"errors"
+	"fmt"
+	"runtime"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// IP address of the server aka "hub". Replace with your own info.
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    ntpHost = "129.6.15.29"
+//    debug = true
+// }
+
+var (
+	ssid    string
+	pass    string
+	ntpHost = "129.6.15.29"
+	debug   = false
+)
+
+const NTP_PACKET_SIZE = 48
+
+var b = make([]byte, NTP_PACKET_SIZE)
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	// now make UDP connection
+	hip := net.ParseIP(ntpHost)
+	raddr := &net.UDPAddr{IP: hip, Port: 123}
+	laddr := &net.UDPAddr{Port: 2390}
+	conn, err := net.DialUDP("udp", laddr, raddr)
+	if err != nil {
+		return err
+	}
+
+	for {
+		// send data
+		println("Requesting NTP time...")
+		t, err := getCurrentTime(conn)
+		if err != nil {
+			message("Error getting current time: %v", err)
+		} else {
+			message("NTP time: %v", t)
+		}
+		runtime.AdjustTimeOffset(-1 * int64(time.Since(t)))
+		for i := 0; i < 10; i++ {
+			message("Current time: %v", time.Now())
+			time.Sleep(1 * time.Second)
+		}
+	}
+
+}
+
+func getCurrentTime(conn *net.UDPSerialConn) (time.Time, error) {
+	if err := sendNTPpacket(conn); err != nil {
+		return time.Time{}, err
+	}
+	clearBuffer()
+	for now := time.Now(); time.Since(now) < time.Second; {
+		time.Sleep(5 * time.Millisecond)
+		if n, err := conn.Read(b); err != nil {
+			return time.Time{}, fmt.Errorf("error reading UDP packet: %w", err)
+		} else if n == 0 {
+			continue // no packet received yet
+		} else if n != NTP_PACKET_SIZE {
+			return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
+		}
+		return parseNTPpacket(), nil
+	}
+	return time.Time{}, errors.New("no packet received after 1 second")
+}
+
+func sendNTPpacket(conn *net.UDPSerialConn) error {
+	clearBuffer()
+	b[0] = 0b11100011 // LI, Version, Mode
+	b[1] = 0          // Stratum, or type of clock
+	b[2] = 6          // Polling Interval
+	b[3] = 0xEC       // Peer Clock Precision
+	// 8 bytes of zero for Root Delay & Root Dispersion
+	b[12] = 49
+	b[13] = 0x4E
+	b[14] = 49
+	b[15] = 52
+	if _, err := conn.Write(b); err != nil {
+		return err
+	}
+	return nil
+}
+
+func parseNTPpacket() time.Time {
+	// the timestamp starts at byte 40 of the received packet and is four bytes,
+	// this is NTP time (seconds since Jan 1 1900):
+	t := uint32(b[40])<<24 | uint32(b[41])<<16 | uint32(b[42])<<8 | uint32(b[43])
+	const seventyYears = 2208988800
+	return time.Unix(int64(t-seventyYears), 0)
+}
+
+func clearBuffer() {
+	for i := range b {
+		b[i] = 0
+	}
+}
+
+func message(format string, args ...interface{}) {
+	println(fmt.Sprintf(format, args...), "\r")
+}
@@ -0,0 +1,121 @@
+// This example opens a TCP connection using a device with RTL8720DN firmware
+// and sends some data, for the purpose of testing speed and connectivity.
+//
+// You can open a server to accept connections from this program using:
+//
+// nc -w 5 -lk 8080
+package main
+
+import (
+	"machine"
+
+	"bytes"
+	"fmt"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    serverIP = "192.168.1.119"
+//    debug = true
+// }
+
+var (
+	ssid     string
+	pass     string
+	serverIP = ""
+	debug    = false
+)
+
+var buf = &bytes.Buffer{}
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	for {
+		sendBatch()
+		time.Sleep(500 * time.Millisecond)
+	}
+	println("Done.")
+
+	return nil
+}
+
+func sendBatch() {
+
+	// make TCP connection
+	ip := net.ParseIP(serverIP)
+	raddr := &net.TCPAddr{IP: ip, Port: 8080}
+	laddr := &net.TCPAddr{Port: 8080}
+
+	message("---------------\r\nDialing TCP connection")
+	conn, err := net.DialTCP("tcp", laddr, raddr)
+	for ; err != nil; conn, err = net.DialTCP("tcp", laddr, raddr) {
+		message(err.Error())
+		time.Sleep(5 * time.Second)
+	}
+
+	n := 0
+	w := 0
+	start := time.Now()
+
+	// send data
+	message("Sending data")
+
+	for i := 0; i < 1000; i++ {
+		buf.Reset()
+		fmt.Fprint(buf,
+			"\r---------------------------- i == ", i, " ----------------------------"+
+				"\r---------------------------- i == ", i, " ----------------------------")
+		if w, err = conn.Write(buf.Bytes()); err != nil {
+			println("error:", err.Error(), "\r")
+			continue
+		}
+		n += w
+	}
+
+	buf.Reset()
+	ms := time.Now().Sub(start).Milliseconds()
+	fmt.Fprint(buf, "\nWrote ", n, " bytes in ", ms, " ms\r\n")
+	message(buf.String())
+
+	if _, err := conn.Write(buf.Bytes()); err != nil {
+		println("error:", err.Error(), "\r")
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting TCP...")
+	conn.Close()
+}
+
+func message(msg string) {
+	println(msg, "\r")
+}
@@ -0,0 +1,137 @@
+package main
+
+import (
+	"machine"
+
+	"bufio"
+	"fmt"
+	"strings"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    debug = true
+//    url = "https://www.example.com"
+//    test_root_ca = "..."
+// }
+
+var (
+	ssid  string
+	pass  string
+	url   string = "https://www.example.com"
+	debug        = false
+)
+
+// Set the test_root_ca created by the following command
+// $ openssl s_client -showcerts -verify 5 -connect www.example.com:443 < /dev/null
+var test_root_ca = `-----BEGIN CERTIFICATE-----
+MIIDrzCCApegAwIBAgIQCDvgVpBCRrGhdWrJWZHHSjANBgkqhkiG9w0BAQUFADBh
+MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
+d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD
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+PnlUkiaY4IBIqDfv8NZ5YBberOgOzW6sRBc4L0na4UU+Krk2U886UAb3LujEV0ls
+YSEY1QSteDwsOoBrp+uvFRTp2InBuThs4pFsiv9kuXclVzDAGySj4dzp30d8tbQk
+CAUw7C29C79Fv1C5qfPrmAESrciIxpg0X40KPMbp1ZWVbd4=
+-----END CERTIFICATE-----
+`
+
+var buf [0x1000]byte
+
+var lastRequestTime time.Time
+var conn net.Conn
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	adaptor.SetRootCA(&test_root_ca)
+	http.SetBuf(buf[:])
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	// You can send and receive cookies in the following way
+	// 	import "tinygo.org/x/drivers/net/http/cookiejar"
+	// 	jar, err := cookiejar.New(nil)
+	// 	if err != nil {
+	// 		return err
+	// 	}
+	// 	client := &http.Client{Jar: jar}
+	// 	http.DefaultClient = client
+
+	cnt := 0
+	for {
+		// Various examples are as follows
+		//
+		// -- Get
+		// 	resp, err := http.Get(url)
+		//
+		// -- Post
+		// 	body := `cnt=12`
+		// 	resp, err = http.Post(url, "application/x-www-form-urlencoded", strings.NewReader(body))
+		//
+		// -- Post with JSON
+		// 	body := `{"msg": "hello"}`
+		// 	resp, err := http.Post(url, "application/json", strings.NewReader(body))
+
+		resp, err := http.Get(url)
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("%s %s\r\n", resp.Proto, resp.Status)
+		for k, v := range resp.Header {
+			fmt.Printf("%s: %s\r\n", k, strings.Join(v, " "))
+		}
+		fmt.Printf("\r\n")
+
+		scanner := bufio.NewScanner(resp.Body)
+		for scanner.Scan() {
+			fmt.Printf("%s\r\n", scanner.Text())
+		}
+		resp.Body.Close()
+
+		cnt++
+		fmt.Printf("-------- %d --------\r\n", cnt)
+		time.Sleep(10 * time.Second)
+	}
+}
@@ -0,0 +1,91 @@
+package main
+
+import (
+	"machine"
+
+	"fmt"
+	"strconv"
+	"time"
+
+	"tinygo.org/x/drivers/net"
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// IP address of the server aka "hub". Replace with your own info.
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    hubIP = "192.168.1.118"
+//    debug = true
+// }
+
+var (
+	ssid  string
+	pass  string
+	hubIP = ""
+	debug = false
+)
+
+var buf [0x400]byte
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	http.SetBuf(buf[:])
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	// now make UDP connection
+	hip := net.ParseIP(hubIP)
+	raddr := &net.UDPAddr{IP: hip, Port: 2222}
+	laddr := &net.UDPAddr{Port: 2222}
+
+	println("Dialing UDP connection...")
+	conn, err := net.DialUDP("udp", laddr, raddr)
+	if err != nil {
+		return err
+	}
+
+	for {
+		// send data
+		println("Sending data...")
+		for i := 0; i < 25; i++ {
+			conn.Write([]byte("hello " + strconv.Itoa(i) + "\r\n"))
+		}
+		time.Sleep(1000 * time.Millisecond)
+	}
+
+	// Right now this code is never reached. Need a way to trigger it...
+	println("Disconnecting UDP...")
+	conn.Close()
+	println("Done.")
+
+	return nil
+}
+
+func message(msg string) {
+	println(msg, "\r")
+}
@@ -0,0 +1,40 @@
+package main
+
+import (
+	"machine"
+
+	"fmt"
+	"time"
+
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+var (
+	debug = false
+)
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	ver, err := adaptor.Version()
+	if err != nil {
+		return nil
+	}
+
+	for {
+		fmt.Printf("RTL8270DN Firmware Version: %s\r\n", ver)
+		time.Sleep(10 * time.Second)
+	}
+
+	return nil
+}
@@ -0,0 +1,162 @@
+package main
+
+import (
+	"machine"
+
+	"bufio"
+	"fmt"
+	"image/color"
+	"strings"
+	"time"
+
+	"tinygo.org/x/drivers/ili9341"
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/rtl8720dn"
+
+	"tinygo.org/x/tinyfont/proggy"
+	"tinygo.org/x/tinyterm"
+)
+
+// You can override the setting with the init() in another source code.
+// If debug is enabled, a serial connection is required.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    debug = false // true
+//    server = "tinygo.org"
+// }
+
+var (
+	ssid  string
+	pass  string
+	url   = "http://tinygo.org/"
+	debug = false
+)
+
+var (
+	display = ili9341.NewSPI(
+		machine.SPI3,
+		machine.LCD_DC,
+		machine.LCD_SS_PIN,
+		machine.LCD_RESET,
+	)
+
+	backlight = machine.LCD_BACKLIGHT
+
+	terminal = tinyterm.NewTerminal(display)
+
+	black = color.RGBA{0, 0, 0, 255}
+	white = color.RGBA{255, 255, 255, 255}
+	red   = color.RGBA{255, 0, 0, 255}
+	blue  = color.RGBA{0, 0, 255, 255}
+	green = color.RGBA{0, 255, 0, 255}
+
+	font = &proggy.TinySZ8pt7b
+)
+
+var buf [0x400]byte
+
+func main() {
+	display.FillScreen(black)
+	backlight.High()
+
+	terminal.Configure(&tinyterm.Config{
+		Font:       font,
+		FontHeight: 10,
+		FontOffset: 6,
+	})
+
+	err := run()
+	for err != nil {
+		fmt.Fprintf(terminal, "error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	fmt.Fprintf(terminal, "setupRTL8720DN()\r\n")
+	if debug {
+		fmt.Fprintf(terminal, "Running in debug mode.\r\n")
+		fmt.Fprintf(terminal, "A serial connection is required to continue execution.\r\n")
+	}
+
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	http.UseDriver(adaptor)
+	http.SetBuf(buf[:])
+
+	fmt.Fprintf(terminal, "ConnectToAP()\r\n")
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+	fmt.Fprintf(terminal, "connected\r\n\r\n")
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Fprintf(terminal, "IP Address : %s\r\n", ip)
+	fmt.Fprintf(terminal, "Mask       : %s\r\n", subnet)
+	fmt.Fprintf(terminal, "Gateway    : %s\r\n", gateway)
+
+	// You can send and receive cookies in the following way
+	// 	import "tinygo.org/x/drivers/net/http/cookiejar"
+	// 	jar, err := cookiejar.New(nil)
+	// 	if err != nil {
+	// 		return err
+	// 	}
+	// 	client := &http.Client{Jar: jar}
+	// 	http.DefaultClient = client
+
+	cnt := 0
+	for {
+		// Various examples are as follows
+		//
+		// -- Get
+		// 	resp, err := http.Get(url)
+		//
+		// -- Post
+		// 	body := `cnt=12`
+		// 	resp, err = http.Post(url, "application/x-www-form-urlencoded", strings.NewReader(body))
+		//
+		// -- Post with JSON
+		// 	body := `{"msg": "hello"}`
+		// 	resp, err := http.Post(url, "application/json", strings.NewReader(body))
+
+		resp, err := http.Get(url)
+		if err != nil {
+			return err
+		}
+
+		fmt.Fprintf(terminal, "%s %s\r\n", resp.Proto, resp.Status)
+		for k, v := range resp.Header {
+			fmt.Fprintf(terminal, "%s: %s\r\n", k, strings.Join(v, " "))
+		}
+		fmt.Printf("\r\n")
+
+		scanner := bufio.NewScanner(resp.Body)
+		for scanner.Scan() {
+			fmt.Fprintf(terminal, "%s\r\n", scanner.Text())
+		}
+		resp.Body.Close()
+
+		cnt++
+		fmt.Fprintf(terminal, "-------- %d --------\r\n", cnt)
+		time.Sleep(10 * time.Second)
+	}
+}
+
+func init() {
+	machine.SPI3.Configure(machine.SPIConfig{
+		SCK:       machine.LCD_SCK_PIN,
+		SDO:       machine.LCD_SDO_PIN,
+		SDI:       machine.LCD_SDI_PIN,
+		Frequency: 40000000,
+	})
+	display.Configure(ili9341.Config{})
+
+	backlight.Configure(machine.PinConfig{machine.PinOutput})
+}
@@ -0,0 +1,106 @@
+package main
+
+import (
+	"machine"
+
+	"bufio"
+	"fmt"
+	"strings"
+	"time"
+
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/rtl8720dn"
+)
+
+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    url = "http://tinygo.org/"
+//    debug = true
+// }
+
+var (
+	ssid  string
+	pass  string
+	url   = "http://tinygo.org/"
+	debug = false
+)
+
+var buf [0x400]byte
+
+func main() {
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	http.UseDriver(adaptor)
+	http.SetBuf(buf[:])
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)
+
+	// You can send and receive cookies in the following way
+	// 	import "tinygo.org/x/drivers/net/http/cookiejar"
+	// 	jar, err := cookiejar.New(nil)
+	// 	if err != nil {
+	// 		return err
+	// 	}
+	// 	client := &http.Client{Jar: jar}
+	// 	http.DefaultClient = client
+
+	cnt := 0
+	for {
+		// Various examples are as follows
+		//
+		// -- Get
+		// 	resp, err := http.Get(url)
+		//
+		// -- Post
+		// 	body := `cnt=12`
+		// 	resp, err = http.Post(url, "application/x-www-form-urlencoded", strings.NewReader(body))
+		//
+		// -- Post with JSON
+		// 	body := `{"msg": "hello"}`
+		// 	resp, err := http.Post(url, "application/json", strings.NewReader(body))
+
+		resp, err := http.Get(url)
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("%s %s\r\n", resp.Proto, resp.Status)
+		for k, v := range resp.Header {
+			fmt.Printf("%s: %s\r\n", k, strings.Join(v, " "))
+		}
+		fmt.Printf("\r\n")
+
+		scanner := bufio.NewScanner(resp.Body)
+		for scanner.Scan() {
+			fmt.Printf("%s\r\n", scanner.Text())
+		}
+		resp.Body.Close()
+
+		cnt++
+		fmt.Printf("-------- %d --------\r\n", cnt)
+		time.Sleep(10 * time.Second)
+	}
+}
@@ -1,51 +1,61 @@
-// This example listens on port :80 serving a web page.  Multiple clients
-// may connect and be serviced at the same time.  IPv4 only.  HTTP only.
-//
-// $ curl http://10.0.0.2
-//
-// Note: It may be necessary to increase the stack size when using "net/http".
-// Use the -stack-size=4KB command line option.
-
-//go:build ninafw || wioterminal
-
 package main

 import (
 	"fmt"
-	"log"
 	"machine"
-	"net/http"
 	"strconv"
 	"time"

-	"tinygo.org/x/drivers/netlink"
-	"tinygo.org/x/drivers/netlink/probe"
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/rtl8720dn"
 )

+// You can override the setting with the init() in another source code.
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+//    debug = true
+// }
+
 var (
-	ssid string
-	pass string
-	port string = ":80"
+	ssid  string
+	pass  string
+	debug = false
 )

 var led = machine.LED
+var backlight = machine.LCD_BACKLIGHT

 func main() {
-
-	// wait a bit for serial
-	time.Sleep(2 * time.Second)
-
 	led.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	backlight.Configure(machine.PinConfig{Mode: machine.PinOutput})

-	link, _ := probe.Probe()
-
-	err := link.NetConnect(&netlink.ConnectParams{
-		Ssid:       ssid,
-		Passphrase: pass,
-	})
-	if err != nil {
-		log.Fatal(err)
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
 	}
+}
+
+func run() error {
+	adaptor := rtl8720dn.New(machine.UART3, machine.PB24, machine.PC24, machine.RTL8720D_CHIP_PU)
+	adaptor.Debug(debug)
+	adaptor.Configure()
+
+	http.UseDriver(adaptor)
+
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	ip, subnet, gateway, err := adaptor.GetIP()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("IP Address : %s\r\n", ip)
+	fmt.Printf("Mask       : %s\r\n", subnet)
+	fmt.Printf("Gateway    : %s\r\n", gateway)

 	http.HandleFunc("/", root)
 	http.HandleFunc("/hello", hello)
@@ -53,12 +63,10 @@ func main() {
 	http.HandleFunc("/6", sixlines)
 	http.HandleFunc("/off", LED_OFF)
 	http.HandleFunc("/on", LED_ON)
-
-	err = http.ListenAndServe(port, nil)
-	for err != nil {
-		fmt.Printf("error: %s\r\n", err.Error())
-		time.Sleep(5 * time.Second)
+	if err := http.ListenAndServe(":80", nil); err != nil {
+		message(err.Error())
 	}
+	return nil
 }

 func root(w http.ResponseWriter, r *http.Request) {
@@ -93,8 +101,8 @@ func root(w http.ResponseWriter, r *http.Request) {
    <title>TinyGo HTTP Server</title>
    <script language="javascript" type="text/javascript">
        var counter = 0
-        function ledOn() { fetch("/on"); }
-        function ledOff() { fetch("/off"); }
+        function ledOn() { fetch("/on").then(response => response.text()).then(text => { led.innerHTML = "<p>on</p>"; }); }
+        function ledOff() { fetch("/off").then(response => response.text()).then(text => { led.innerHTML = "<p>off</p>"; }); }
        function fetchCnt() { fetch("/cnt").then(response => response.json()).then(json => { counter = json.cnt; cnt.innerHTML = counter; }); }
        function incrCnt() { counter = counter + 1; fetch("/cnt?cnt=" + counter, { method: 'POST' }).then(response => response.json()).then(json => { counter = json.cnt; cnt.innerHTML = counter; }); }
        function setCnt() { fetch("/cnt", {
@@ -133,7 +141,7 @@ func root(w http.ResponseWriter, r *http.Request) {
    </p>
 </body>
 </html>
-`, access)
+    `, access)
 }

 func sixlines(w http.ResponseWriter, r *http.Request) {
@@ -147,12 +155,14 @@ func sixlines(w http.ResponseWriter, r *http.Request) {

 func LED_ON(w http.ResponseWriter, r *http.Request) {
 	led.High()
+	backlight.High()
 	w.Header().Set(`Content-Type`, `text/plain; charset=UTF-8`)
 	fmt.Fprintf(w, "led.High()")
 }

 func LED_OFF(w http.ResponseWriter, r *http.Request) {
 	led.Low()
+	backlight.Low()
 	w.Header().Set(`Content-Type`, `text/plain; charset=UTF-8`)
 	fmt.Fprintf(w, "led.Low()")
 }
@@ -177,3 +187,7 @@ func cnt(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set(`Content-Type`, `application/json`)
 	fmt.Fprintf(w, `{"cnt": %d}`, counter)
 }
+
+func message(msg string) {
+	println(msg, "\r")
+}
@@ -1,111 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/sd"
-)
-
-const (
-	SPI_RX_PIN  = machine.GP16
-	SPI_TX_PIN  = machine.GP19
-	SPI_SCK_PIN = machine.GP18
-	SPI_CS_PIN  = machine.GP15
-)
-
-var (
-	spibus = machine.SPI0
-	spicfg = machine.SPIConfig{
-		Frequency: 250000,
-		Mode:      0,
-		SCK:       SPI_SCK_PIN,
-		SDO:       SPI_TX_PIN,
-		SDI:       SPI_RX_PIN,
-	}
-)
-
-func main() {
-	time.Sleep(time.Second)
-	SPI_CS_PIN.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	err := spibus.Configure(spicfg)
-	if err != nil {
-		panic(err.Error())
-	}
-	sdcard := sd.NewSPICard(spibus, SPI_CS_PIN.Set)
-	println("start init")
-	err = sdcard.Init()
-	if err != nil {
-		panic("sd card init:" + err.Error())
-	}
-	// After initialization it's safe to increase SPI clock speed.
-	csd := sdcard.CSD()
-	kbps := csd.TransferSpeed().RateKilobits()
-	spicfg.Frequency = uint32(kbps * 1000)
-	err = spibus.Configure(spicfg)
-
-	cid := sdcard.CID()
-	fmt.Printf("name=%s\ncsd=\n%s\n", cid.ProductName(), csd.String())
-
-	bd, err := sd.NewBlockDevice(sdcard, csd.ReadBlockLen(), csd.NumberOfBlocks())
-	if err != nil {
-		panic("block device creation:" + err.Error())
-	}
-	var mc MemChecker
-
-	ok, badBlkIdx, err := mc.MemCheck(bd, 2, 100)
-	if err != nil {
-		panic("memcheck:" + err.Error())
-	}
-	if !ok {
-		println("bad block", badBlkIdx)
-	} else {
-		println("memcheck ok")
-	}
-}
-
-type MemChecker struct {
-	rdBuf    []byte
-	storeBuf []byte
-	wrBuf    []byte
-}
-
-func (mc *MemChecker) MemCheck(bd *sd.BlockDevice, blockIdx, numBlocks int64) (memOK bool, badBlockIdx int64, err error) {
-	size := bd.BlockSize() * numBlocks
-	if len(mc.rdBuf) < int(size) {
-		mc.rdBuf = make([]byte, size)
-		mc.wrBuf = make([]byte, size)
-		mc.storeBuf = make([]byte, size)
-		for i := range mc.wrBuf {
-			mc.wrBuf[i] = byte(i)
-		}
-	}
-	// Start by storing the original block contents.
-	_, err = bd.ReadAt(mc.storeBuf, blockIdx)
-	if err != nil {
-		return false, blockIdx, err
-	}
-
-	// Write the test pattern.
-	_, err = bd.WriteAt(mc.wrBuf, blockIdx)
-	if err != nil {
-		return false, blockIdx, err
-	}
-	// Read back the test pattern.
-	_, err = bd.ReadAt(mc.rdBuf, blockIdx)
-	if err != nil {
-		return false, blockIdx, err
-	}
-	for j := 0; j < len(mc.rdBuf); j++ {
-		// Compare the read back data with the test pattern.
-		if mc.rdBuf[j] != mc.wrBuf[j] {
-			badBlock := blockIdx + int64(j)/bd.BlockSize()
-			return false, badBlock, nil
-		}
-		mc.rdBuf[j] = 0
-	}
-	// Leave the card in it's previous state.
-	_, err = bd.WriteAt(mc.storeBuf, blockIdx)
-	return true, -1, nil
-}
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI0
+	spi = &machine.SPI0
 	sckPin = machine.SPI0_SCK_PIN
 	sdoPin = machine.SPI0_SDO_PIN
 	sdiPin = machine.SPI0_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI1
+	spi = &machine.SPI1
 	sckPin = machine.SDCARD_SCK_PIN
 	sdoPin = machine.SDCARD_SDO_PIN
 	sdiPin = machine.SDCARD_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI0
+	spi = &machine.SPI0
 	sckPin = machine.SPI0_SCK_PIN
 	sdoPin = machine.SPI0_SDO_PIN
 	sdiPin = machine.SPI0_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SDCARD_SPI
+	spi = &machine.SDCARD_SPI
 	sckPin = machine.SDCARD_SCK_PIN
 	sdoPin = machine.SDCARD_SDO_PIN
 	sdiPin = machine.SDCARD_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI0
+	spi = &machine.SPI0
 	sckPin = machine.SPI0_SCK_PIN
 	sdoPin = machine.SPI0_SDO_PIN
 	sdiPin = machine.SPI0_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI0
+	spi = &machine.SPI0
 	sckPin = machine.SPI0_SCK_PIN
 	sdoPin = machine.SPI0_SDO_PIN
 	sdiPin = machine.SPI0_SDI_PIN
@@ -7,7 +7,7 @@ import (
 )

 func init() {
-	spi = machine.SPI2
+	spi = &machine.SPI2
 	sckPin = machine.SCK2
 	sdoPin = machine.SDO2
 	sdiPin = machine.SDI2
@@ -1,35 +0,0 @@
-package main
-
-import (
-	"machine"
-	"time"
-
-	"tinygo.org/x/drivers/seesaw"
-)
-
-// example reading the position of a rotary encoder (4991) powered by a seesaw
-// https://learn.adafruit.com/adafruit-i2c-qt-rotary-encoder/arduino
-func main() {
-	// This assumes you are using an Adafruit QT Py RP2040 for its Stemma QT connector
-	// https://www.adafruit.com/product/4900
-	i2c := machine.I2C1
-	i2c.Configure(machine.I2CConfig{
-		SCL: machine.I2C1_QT_SCL_PIN,
-		SDA: machine.I2C1_QT_SDA_PIN,
-	})
-
-	dev := seesaw.New(i2c)
-	dev.Address = 0x36
-
-	for {
-		time.Sleep(time.Second)
-
-		pos, err := dev.GetEncoderPosition(0, false)
-		if err != nil {
-			println(err)
-			continue
-		}
-
-		println(pos)
-	}
-}
@@ -1,33 +0,0 @@
-package main
-
-import (
-	"machine"
-	"strconv"
-	"time"
-
-	"tinygo.org/x/drivers/seesaw"
-)
-
-const readDelay = time.Microsecond * 3000
-
-// example reading soil moisture with an Adafruit capacitive soil-sensor (4026) powered by a seesaw
-// https://learn.adafruit.com/adafruit-stemma-soil-sensor-i2c-capacitive-moisture-sensor/overview
-func main() {
-	machine.I2C0.Configure(machine.I2CConfig{})
-
-	dev := seesaw.New(machine.I2C0)
-
-	dev.Address = 0x36
-
-	// the soil sensor is especially slow, let's give it some more time
-	dev.ReadDelay = readDelay
-
-	var buf [2]byte
-	err := dev.Read(seesaw.ModuleTouchBase, seesaw.FunctionTouchChannelOffset, buf[:])
-	if err != nil {
-		panic(err)
-	}
-	moisture := uint16(buf[0])<<8 | uint16(buf[1])
-
-	println("soil moisture: " + strconv.Itoa(int(moisture)))
-}
--- a/Show More
+++ b/Show More