examples: correct missing const for lora atcmd

Signed-off-by: deadprogram <ron@hybridgroup.com>

README.md

@@ -112,7 +112,7 @@ The following 90 devices are supported.
 | [P1AM-100 Base Controller](https://facts-engineering.github.io/modules/P1AM-100/P1AM-100.html)                                                                                                      | SPI |
 | [PCD8544 display](http://eia.udg.edu/~forest/PCD8544_1.pdf)                                                                                                                                         | SPI |
 | [PCF8563 real time clock](https://www.nxp.com/docs/en/data-sheet/PCF8563.pdf)                                                                                                                       | I2C |
-| [QMI8658C accelerometer/gyroscope](https://www.qstcorp.com/upload/pdf/202202/%EF%BC%88%E5%B7%B2%E4%BC%A0%EF%BC%89QMI8658C%20datasheet%20rev%200.9.pdf)                                                                                                                       | I2C |
+| [QMI8658C accelerometer/gyroscope](https://www.qstcorp.com/upload/pdf/202202/%EF%BC%88%E5%B7%B2%E4%BC%A0%EF%BC%89QMI8658C%20datasheet%20rev%200.9.pdf)                                              | I2C |
 | [Resistive Touchscreen (4-wire)](http://ww1.microchip.com/downloads/en/Appnotes/doc8091.pdf)                                                                                                        | GPIO |
 | [RTL8720DN 2.4G/5G Dual Bands Wireless and BLE5.0](https://www.seeedstudio.com/Realtek8720DN-2-4G-5G-Dual-Bands-Wireless-and-BLE5-0-Combo-Module-p-4442.html)                                       | UART |
 | [SCD4x CO2 Sensor](https://sensirion.com/media/documents/C4B87CE6/627C2DCD/CD_DS_SCD40_SCD41_Datasheet_D1.pdf)                                                                                      | I2C |
@@ -120,6 +120,7 @@ The following 90 devices are supported.
 | [Servo](https://learn.sparkfun.com/tutorials/hobby-servo-tutorial/all)                                                                                                                              | PWM |
 | [Shift register (PISO)](https://en.wikipedia.org/wiki/Shift_register#Parallel-in_serial-out_\(PISO\))                                                                                               | GPIO |
 | [Shift registers (SIPO)](https://en.wikipedia.org/wiki/Shift_register#Serial-in_parallel-out_(SIPO))                                                                                                | GPIO |
+| [SH1106 OLED display](https://www.velleman.eu/downloads/29/infosheets/sh1106_datasheet.pdf) | I2C / SPI |
 | [SHT3x Digital Humidity Sensor](https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT3x_Datasheet_digital.pdf) | I2C |
 | [SHTC3 Digital Humidity Sensor (RH/T)](https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHTC3_Datasheet.pdf)  | I2C |
 | [SPI NOR Flash Memory](https://en.wikipedia.org/wiki/Flash_memory#NOR_flash)                                                                                                                        | SPI/QSPI |
@@ -141,10 +142,10 @@ The following 90 devices are supported.
 | [Waveshare 2.13" e-paper display](https://www.waveshare.com/w/upload/e/e6/2.13inch_e-Paper_Datasheet.pdf)                                                                                           | SPI |
 | [Waveshare 2.9" e-paper display (V1)](https://www.waveshare.com/w/upload/e/e6/2.9inch_e-Paper_Datasheet.pdf)                                                                                        | SPI |
 | [Waveshare 4.2" e-paper B/W display](https://www.waveshare.com/w/upload/6/6a/4.2inch-e-paper-specification.pdf)                                                                                     | SPI |
-| [Waveshare GC9A01 TFT round display](https://www.waveshare.com/w/upload/5/5e/GC9A01A.pdf)                                                                             | SPI |
+| [Waveshare GC9A01 TFT round display](https://www.waveshare.com/w/upload/5/5e/GC9A01A.pdf)                                                                                                           | SPI |
 | [WS2812 RGB LED](https://cdn-shop.adafruit.com/datasheets/WS2812.pdf)                                                                                                                               | GPIO |
 | [XPT2046 touch controller](http://grobotronics.com/images/datasheets/xpt2046-datasheet.pdf)                                                                                                         | GPIO |
-| [Semtech SX126x Lora](https://www.semtech.com/products/wireless-rf/lora-transceiv-ers/sx1261)                                                                                                       | SPI |
+| [Semtech SX126x Lora](https://www.semtech.com/products/wireless-rf/lora-connect/sx1261)                                                                                                             | SPI |
 | [SSD1289 TFT color display](http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd/tft2/M032C1289TP/3.2-SSD1289.pdf)                                                                             | GPIO |
 
 ## Contributing

apds9960/apds9960_generic.go

@@ -1,5 +1,4 @@
 //go:build !nano_33_ble
-// +build !nano_33_ble
 
 package apds9960
 

apds9960/apds9960_nano_33_ble.go

@@ -1,5 +1,4 @@
 //go:build nano_33_ble
-// +build nano_33_ble
 
 package apds9960
 

bme280/bme280.go

@@ -7,6 +7,7 @@ package bme280
 
 import (
 	"math"
+	"time"
 
 	"tinygo.org/x/drivers"
 )
@@ -33,11 +34,27 @@ type calibrationCoefficients struct {
 	h6 int8
 }
 
+type Oversampling byte
+type Mode byte
+type FilterCoefficient byte
+type Period byte
+
+// Config contains settings for filtering, sampling, and modes of operation
+type Config struct {
+	Pressure    Oversampling
+	Temperature Oversampling
+	Humidity    Oversampling
+	Period      Period
+	Mode        Mode
+	IIR         FilterCoefficient
+}
+
 // Device wraps an I2C connection to a BME280 device.
 type Device struct {
 	bus                     drivers.I2C
 	Address                 uint16
 	calibrationCoefficients calibrationCoefficients
+	Config                  Config
 }
 
 // New creates a new BME280 connection. The I2C bus must already be
@@ -51,9 +68,34 @@ func New(bus drivers.I2C) Device {
 	}
 }
 
-// Configure sets up the device for communication and
-// read the calibration coefficientes.
+// ConfigureWithSettings sets up the device for communication and
+// read the calibration coefficients.
+//
+// The default configuration is the Indoor Navigation settings
+// from the BME280 datasheet.
 func (d *Device) Configure() {
+	d.ConfigureWithSettings(Config{})
+}
+
+// ConfigureWithSettings sets up the device for communication and
+// read the calibration coefficients.
+//
+// The default configuration if config is left at defaults is
+// the Indoor Navigation settings from the BME280 datasheet.
+func (d *Device) ConfigureWithSettings(config Config) {
+	d.Config = config
+
+	// If config is not initialized, use Indoor Navigation defaults.
+	if d.Config == (Config{}) {
+		d.Config = Config{
+			Mode:        ModeNormal,
+			Period:      Period0_5ms,
+			Temperature: Sampling2X,
+			Humidity:    Sampling1X,
+			Pressure:    Sampling16X,
+			IIR:         Coeff16,
+		}
+	}
 
 	var data [24]byte
 	err := d.bus.ReadRegister(uint8(d.Address), REG_CALIBRATION, data[:])
@@ -93,10 +135,18 @@ func (d *Device) Configure() {
 	d.calibrationCoefficients.h4 = 0 + (int16(h2lsb[3]) << 4) | (int16(h2lsb[4] & 0x0F))
 	d.calibrationCoefficients.h5 = 0 + (int16(h2lsb[5]) << 4) | (int16(h2lsb[4]) >> 4)
 
-	d.bus.WriteRegister(uint8(d.Address), CTRL_HUMIDITY_ADDR, []byte{0x3f})
-	d.bus.WriteRegister(uint8(d.Address), CTRL_MEAS_ADDR, []byte{0xB7})
-	d.bus.WriteRegister(uint8(d.Address), CTRL_CONFIG, []byte{0x00})
+	d.Reset()
 
+	d.bus.WriteRegister(uint8(d.Address), CTRL_CONFIG, []byte{byte(d.Config.Period<<5) | byte(d.Config.IIR<<2)})
+	d.bus.WriteRegister(uint8(d.Address), CTRL_HUMIDITY_ADDR, []byte{byte(d.Config.Humidity)})
+
+	// Normal mode, start measuring now
+	if d.Config.Mode == ModeNormal {
+		d.bus.WriteRegister(uint8(d.Address), CTRL_MEAS_ADDR, []byte{
+			byte(d.Config.Temperature<<5) |
+				byte(d.Config.Pressure<<2) |
+				byte(d.Config.Mode)})
+	}
 }
 
 // Connected returns whether a BME280 has been found.
@@ -112,6 +162,20 @@ func (d *Device) Reset() {
 	d.bus.WriteRegister(uint8(d.Address), CMD_RESET, []byte{0xB6})
 }
 
+// SetMode can set the device to Sleep, Normal or Forced mode
+//
+// Calling this method is optional, Configure can be used to set the
+// initial mode if no mode change is desired.  This method is most
+// useful to switch between Sleep and Normal modes.
+func (d *Device) SetMode(mode Mode) {
+	d.Config.Mode = mode
+
+	d.bus.WriteRegister(uint8(d.Address), CTRL_MEAS_ADDR, []byte{
+		byte(d.Config.Temperature<<5) |
+			byte(d.Config.Pressure<<2) |
+			byte(d.Config.Mode)})
+}
+
 // ReadTemperature returns the temperature in celsius milli degrees (°C/1000)
 func (d *Device) ReadTemperature() (int32, error) {
 	data, err := d.readData()
@@ -186,6 +250,16 @@ func readIntLE(msb byte, lsb byte) int16 {
 // readData does a burst read from 0xF7 to 0xF0 according to the datasheet
 // resulting in an slice with 8 bytes 0-2 = pressure / 3-5 = temperature / 6-7 = humidity
 func (d *Device) readData() (data [8]byte, err error) {
+	if d.Config.Mode == ModeForced {
+		// Write the CTRL_MEAS register to trigger a measurement
+		d.bus.WriteRegister(uint8(d.Address), CTRL_MEAS_ADDR, []byte{
+			byte(d.Config.Temperature<<5) |
+				byte(d.Config.Pressure<<2) |
+				byte(d.Config.Mode)})
+
+		time.Sleep(d.measurementDelay())
+	}
+
 	err = d.bus.ReadRegister(uint8(d.Address), REG_PRESSURE, data[:])
 	if err != nil {
 		println(err)
@@ -256,3 +330,39 @@ func (d *Device) calculateHumidity(data [8]byte, tFine int32) int32 {
 	return int32(100 * h)
 
 }
+
+// measurementDelay returns how much time each measurement will take
+// on the device.
+//
+// This is used in forced mode to wait until a measurement is complete.
+func (d *Device) measurementDelay() time.Duration {
+	const MeasOffset = 1250
+	const MeasDur = 2300
+	const HumMeasOffset = 575
+	const MeasScalingFactor = 1000
+
+	// delay is based on over-sampling rate - this table converts from
+	// setting to number samples
+	sampleRateConv := []int{0, 1, 2, 4, 8, 16}
+
+	tempOsr := 16
+	if d.Config.Temperature <= Sampling16X {
+		tempOsr = sampleRateConv[d.Config.Temperature]
+	}
+
+	presOsr := 16
+	if d.Config.Temperature <= Sampling16X {
+		presOsr = sampleRateConv[d.Config.Pressure]
+	}
+
+	humOsr := 16
+	if d.Config.Temperature <= Sampling16X {
+		humOsr = sampleRateConv[d.Config.Humidity]
+	}
+
+	max_delay := ((MeasOffset + (MeasDur * tempOsr) +
+		((MeasDur * presOsr) + HumMeasOffset) +
+		((MeasDur * humOsr) + HumMeasOffset)) / MeasScalingFactor)
+
+	return time.Duration(max_delay) * time.Millisecond
+}

bme280/registers.go

@@ -20,6 +20,50 @@ const (
 	CHIP_ID  = 0x60
 )
 
+// Increasing sampling rate increases precision but also the wait time for measurements. The datasheet has a table of
+// suggested values for oversampling, output data rates, and iir filter coefficients by use case.
+const (
+	SamplingOff Oversampling = iota
+	Sampling1X
+	Sampling2X
+	Sampling4X
+	Sampling8X
+	Sampling16X
+)
+
+// In normal mode (the default) the sensor takes masurements periodically.  In forced
+// mode, the sensor takes a measurement only when requested.
+//
+// For use-cases with infrequent sampling, forced mode is more power efficient.
+const (
+	ModeNormal Mode = 0x03
+	ModeForced Mode = 0x01
+	ModeSleep  Mode = 0x00
+)
+
+// IIR filter coefficients, higher values means steadier measurements but slower reaction times
+const (
+	Coeff0 FilterCoefficient = iota
+	Coeff2
+	Coeff4
+	Coeff8
+	Coeff16
+)
+
+// Period of standby in normal mode which controls how often measurements are taken
+//
+// Note Period10ms and Period20ms are out of sequence, but are per the datasheet
+const (
+	Period0_5ms  Period = 0b000
+	Period62_5ms        = 0b001
+	Period125ms         = 0b010
+	Period250ms         = 0b011
+	Period500ms         = 0b100
+	Period1000ms        = 0b101
+	Period10ms          = 0b110
+	Period20ms          = 0b111
+)
+
 const (
 	SEALEVEL_PRESSURE float32 = 1013.25 // in hPa
 )

buzzer/buzzer.go

@@ -54,6 +54,12 @@ func (l *Device) Tone(hz, duration float64) (err error) {
 
 	tempo := ((60 / l.BPM) * (duration * 1000))
 
+	// no tone during rest, just let the duration pass.
+	if hz == Rest {
+		time.Sleep(time.Duration(tempo) * time.Millisecond)
+		return
+	}
+
 	for i := 0.0; i < tempo*1000; i += tone * 2.0 {
 		if err = l.On(); err != nil {
 			return

buzzer/notes.go

@@ -1,9 +1,9 @@
 package buzzer
 
 const (
-	Whole   = 4
-	Half    = 2
-	Quarter = 1
+	Whole   = 4.0
+	Half    = 2.0
+	Quarter = 1.0
 	Eighth  = 0.500
 )
 

dht/constants.go

@@ -1,5 +1,4 @@
 //go:build tinygo
-// +build tinygo
 
 // Package dht provides a driver for DHTXX family temperature and humidity sensors.
 //

dht/highfreq.go

@@ -1,5 +1,4 @@
 //go:build mimxrt1062 || stm32f405 || atsamd51 || stm32f103xx || k210 || stm32f407
-// +build mimxrt1062 stm32f405 atsamd51 stm32f103xx k210 stm32f407
 
 package dht // import "tinygo.org/x/drivers/dht"
 

dht/lowfreq.go

@@ -1,5 +1,4 @@
 //go:build !mimxrt1062 && !stm32f405 && !atsamd51 && !stm32f103xx && !k210 && !stm32f407
-// +build !mimxrt1062,!stm32f405,!atsamd51,!stm32f103xx,!k210,!stm32f407
 
 package dht // import "tinygo.org/x/drivers/dht"
 

dht/thermometer.go

@@ -1,5 +1,4 @@
 //go:build tinygo
-// +build tinygo
 
 // Package dht provides a driver for DHTXX family temperature and humidity sensors.
 //
@@ -11,6 +10,7 @@ package dht // import "tinygo.org/x/drivers/dht"
 
 import (
 	"machine"
+	"runtime/interrupt"
 	"time"
 )
 
@@ -160,8 +160,8 @@ func (t *device) read() error {
 // interrupts
 func receiveSignals(pin machine.Pin, result []counter) {
 	i := uint8(0)
-	machine.UART1.Interrupt.Disable()
-	defer machine.UART1.Interrupt.Enable()
+	mask := interrupt.Disable()
+	defer interrupt.Restore(mask)
 	for ; i < 40; i++ {
 		result[i*2] = expectChange(pin, false)
 		result[i*2+1] = expectChange(pin, true)

dht/timesafethermometer.go

@@ -1,5 +1,4 @@
 //go:build tinygo
-// +build tinygo
 
 // Package dht provides a driver for DHTXX family temperature and humidity sensors.
 //

dht/util.go

@@ -1,5 +1,4 @@
 //go:build tinygo
-// +build tinygo
 
 package dht // import "tinygo.org/x/drivers/dht"
 

examples/ft6336/basic/m5stack_core2.go

@@ -1,5 +1,4 @@
 //go:build m5stack_core2
-// +build m5stack_core2
 
 package main
 

examples/ft6336/touchpaint/m5stack_core2.go

@@ -1,5 +1,4 @@
 //go:build m5stack_core2
-// +build m5stack_core2
 
 package main
 

examples/ili9341/initdisplay/atsamd21.go

@@ -1,5 +1,4 @@
 //go:build atsamd21
-// +build atsamd21
 
 package initdisplay
 

examples/ili9341/initdisplay/feather.go

@@ -1,5 +1,4 @@
 //go:build feather_m0 || feather_m4 || feather_m4_can || feather_nrf52840 || feather_nrf52840_sense || feather_stm32f405 || feather_rp2040
-// +build feather_m0 feather_m4 feather_m4_can feather_nrf52840 feather_nrf52840_sense feather_stm32f405 feather_rp2040
 
 package initdisplay
 

examples/ili9341/initdisplay/m5stack.go

@@ -1,5 +1,4 @@
 //go:build m5stack
-// +build m5stack
 
 package initdisplay
 

examples/ili9341/initdisplay/m5stack_core2.go

@@ -1,5 +1,4 @@
 //go:build m5stack_core2
-// +build m5stack_core2
 
 package initdisplay
 

examples/ili9341/initdisplay/pyportal.go

@@ -1,5 +1,4 @@
 //go:build pyportal
-// +build pyportal
 
 package initdisplay
 

examples/ili9341/initdisplay/wioterminal.go

@@ -1,5 +1,4 @@
 //go:build wioterminal
-// +build wioterminal
 
 package initdisplay
 

examples/lora/atcmd/README.md

@@ -0,0 +1,29 @@
+# AT-CMD implementation of at-lora command set
+
+```
+$ tinygo monitor
+Connected to /dev/ttyACM0. Press Ctrl-C to exit.
++AT: OK
++VER: 0.0.1 (sx127x v18)
+```
+
+# Building
+
+## Simulator
+
+```
+tinygo flash -target pico ./examples/lora/atcmd/
+```
+
+## PyBadge with LoRa Featherwing 
+
+```
+tinygo flash -target pybadge -tags featherwing ./examples/lora/atcmd/
+```
+
+## LoRa-E5 
+
+```
+tinygo flash -target lorae5 ./examples/lora/atcmd/
+```
+

examples/lora/atcmd/commands.go

@@ -0,0 +1,410 @@
+package main
+
+import (
+	"encoding/hex"
+	"strings"
+)
+
+// Use to test if connection to module is OK.
+func quicktest() {
+	writeCommandOutput("AT", "OK")
+}
+
+// Check firmware version.
+func version() {
+	writeCommandOutput("VER", currentVersion()+" ("+firmwareVersion()+")")
+}
+
+// Use to check the ID of the LoRaWAN module, or change the ID.
+func id(args string) error {
+	cmd := "ID"
+
+	// look for comma in args
+	param, val, hasComma := strings.Cut(args, ",")
+	if hasComma {
+		// set
+		switch param {
+		case "DevAddr":
+			writeCommandOutput(cmd, "DevAddr, "+val)
+		case "DevEui":
+			writeCommandOutput(cmd, "DevEui, "+val)
+		case "AppEui":
+			writeCommandOutput(cmd, "AppEui, "+val)
+		default:
+			return errInvalidCommand
+		}
+
+		return nil
+	}
+
+	// get
+	switch param {
+	case "DevAddr":
+		writeCommandOutput(cmd, "DevAddr, xx:xx:xx:xx")
+	case "DevEui":
+		writeCommandOutput(cmd, "DevEui, xx:xx:xx:xx:xx:xx:xx:xx")
+	case "AppEui":
+		writeCommandOutput(cmd, "AppEui, xx:xx:xx:xx:xx:xx:xx:xx")
+	default:
+		writeCommandOutput(cmd, "DevAddr, xx:xx:xx:xx")
+		writeCommandOutput(cmd, "DevEui, xx:xx:xx:xx:xx:xx:xx:xx")
+		writeCommandOutput(cmd, "AppEui, xx:xx:xx:xx:xx:xx:xx:xx")
+	}
+
+	return nil
+}
+
+// Use to reset the module. If module returns error, then reset function is invalid.
+func reset() error {
+	radio.Reset()
+
+	writeCommandOutput("RESET", "OK")
+	return nil
+}
+
+// Use to send string format frame which is no need to be confirmed by the server.
+func msg(data string) error {
+	cmd := "MSG"
+	writeCommandOutput(cmd, "Start")
+
+	if err := radio.Tx([]byte(data), defaultTimeout); err != nil {
+		writeCommandOutput(cmd, err.Error())
+
+		return err
+	}
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+// Use to send string format frame which must be confirmed by the server
+func cmsg(data string) error {
+	cmd := "CMSG"
+	writeCommandOutput(cmd, "Start")
+
+	if err := radio.Tx([]byte(data), defaultTimeout); err != nil {
+		writeCommandOutput(cmd, err.Error())
+
+		return err
+	}
+
+	// TODO: confirmation
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+// Use to send hex format frame which is no need to be confirmed by the server
+func msghex(data string) error {
+	cmd := "MSGHEX"
+	writeCommandOutput(cmd, "Start")
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+// Use to send hex format frame which must be confirmed by the server.
+func cmsghex(data string) error {
+	cmd := "CMSGHEX"
+	writeCommandOutput(cmd, "Start")
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+// Use to send string format LoRaWAN proprietary frames
+func pmsg(data string) error {
+	cmd := "PMSG"
+	writeCommandOutput(cmd, "Start")
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+// Use to send hex format LoRaWAN proprietary frames.
+func pmsghex(data string) error {
+	cmd := "PMSGHEX"
+	writeCommandOutput(cmd, "Start")
+
+	writeCommandOutput(cmd, "Done")
+
+	return nil
+}
+
+// Set PORT number which will be used by MSG/CMSG/MSGHEX/CMSGHEX command to send
+// message, port number should range from 1 to 255. User should refer to LoRaWAN
+// specification to choose port.
+func port(p string) error {
+	cmd := "PMSG"
+	writeCommandOutput(cmd, p)
+
+	return nil
+}
+
+// Set ADR function of LoRaWAN module
+func adr(state string) error {
+	cmd := "ADR"
+	writeCommandOutput(cmd, state)
+
+	return nil
+}
+
+// Use LoRaWAN defined DRx to set datarate of LoRaWAN AT modem.
+func dr(rate string) error {
+	cmd := "DR"
+	writeCommandOutput(cmd, rate)
+
+	return nil
+}
+
+// Channel Configuration
+func ch(channel string) error {
+	cmd := "CH"
+	writeCommandOutput(cmd, channel)
+
+	return nil
+}
+
+// Set and Check Power
+func power(setting string) error {
+	cmd := "POWER"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+// Unconfirmed message repeats times.
+func rept(setting string) error {
+	cmd := "REPT"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+// Confirmed message retry times. Valid range 0~254,
+// if retry times is less than 2, only one message will
+// be sent. Random delay 3 - 10s between each retry
+// (band duty cycle limitation has the priority)
+func retry(setting string) error {
+	cmd := "RETRY"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func rxwin2(setting string) error {
+	cmd := "RXWIN2"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func rxwin1(setting string) error {
+	cmd := "RXWIN1"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func key(setting string) error {
+	cmd := "KEY"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func fdefault(setting string) error {
+	cmd := "FDEFAULT"
+	writeCommandOutput(cmd, "OK")
+
+	return nil
+}
+
+func mode(setting string) error {
+	cmd := "MODE"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func join(setting string) error {
+	cmd := "JOIN"
+	writeCommandOutput(cmd, "Starting")
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+func beacon(setting string) error {
+	cmd := "BEACON"
+	writeCommandOutput(cmd, "Starting")
+
+	writeCommandOutput(cmd, "Done")
+
+	return nil
+}
+
+func class(setting string) error {
+	cmd := "CLASS"
+	writeCommandOutput(cmd, "Starting")
+
+	writeCommandOutput(cmd, "Done")
+
+	return nil
+}
+
+func delay(setting string) error {
+	cmd := "DELAY"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func lw(setting string) error {
+	cmd := "LW"
+	writeCommandOutput(cmd, setting)
+
+	return nil
+}
+
+func wdt(setting string) error {
+	cmd := "WDT"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func lowpower(setting string) error {
+	cmd := "LOWPOWER"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func vdd(setting string) error {
+	cmd := "VDD"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func temp(setting string) error {
+	cmd := "TEMP"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func rtc(setting string) error {
+	cmd := "RTC"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func eeprom(setting string) error {
+	cmd := "EEPROM"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func uartcmd(setting string) error {
+	cmd := "UART"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func test(setting string) error {
+	cmd := "TEST"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func log(setting string) error {
+	cmd := "LOG"
+	writeCommandOutput(cmd, "Not implemented")
+
+	return nil
+}
+
+func send(data string) error {
+	cmd := "SEND"
+	writeCommandOutput(cmd, "Start")
+
+	// remove leading/trailing quotes
+	data = strings.Trim(data, "\"'")
+
+	if err := radio.Tx([]byte(data), defaultTimeout); err != nil {
+		writeCommandOutput(cmd, err.Error())
+
+		return err
+	}
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+func sendhex(data string) error {
+	cmd := "SENDHEX"
+	writeCommandOutput(cmd, "Start")
+
+	// remove leading/trailing quotes
+	data = strings.Trim(data, "\"'")
+
+	// convert data from hex formatted string
+	data = strings.ReplaceAll(data, " ", "")
+	payload, err := hex.DecodeString(data)
+	if err != nil {
+		writeCommandOutput(cmd, err.Error())
+
+		return err
+	}
+
+	if err := radio.Tx(payload, defaultTimeout); err != nil {
+		writeCommandOutput(cmd, err.Error())
+
+		return err
+	}
+
+	writeCommandOutput(cmd, "Done")
+	return nil
+}
+
+func recv(setting string) error {
+	cmd := "RECV"
+
+	data, err := lorarx()
+	if err != nil {
+		writeCommandOutput(cmd, "ERROR "+err.Error())
+		return err
+	}
+	writeCommandOutput(cmd, string(data))
+
+	return nil
+}
+
+func recvhex(setting string) error {
+	cmd := "RECVHEX"
+
+	data, err := lorarx()
+	if err != nil {
+		writeCommandOutput(cmd, "ERROR "+err.Error())
+		return err
+	}
+	writeCommandOutput(cmd, string(data))
+
+	return nil
+}
+
+func crlf() {
+	uart.Write([]byte("\r\n"))
+}
+
+func writeCommandOutput(cmd, data string) {
+	uart.Write([]byte("+" + cmd + ": "))
+	uart.Write([]byte(data))
+	crlf()
+}

examples/lora/atcmd/main.go

@@ -0,0 +1,65 @@
+// AT command set console running on the device UART to communicate with
+// an attached LoRa device.
+//
+// Computer <-> UART <-> MCU <-> SPI <-> SX126x/SX127x
+//
+// Connect using default baudrate for this hardware, 8-N-1 with your terminal program.
+// For details on the AT command set, see:
+// https://files.seeedstudio.com/products/317990687/res/LoRa-E5%20AT%20Command%20Specification_V1.0%20.pdf
+package main
+
+import (
+	"machine"
+	"time"
+)
+
+// change these to test a different UART or pins if available
+var (
+	uart  = machine.Serial
+	tx    = machine.UART_TX_PIN
+	rx    = machine.UART_RX_PIN
+	input = make([]byte, 0, 64)
+
+	radio          LoraRadio
+	defaultTimeout uint32 = 1000
+)
+
+func main() {
+	uart.Configure(machine.UARTConfig{TX: tx, RX: rx})
+
+	var err error
+	radio, err = setupLora()
+	if err != nil {
+		fail(err.Error())
+	}
+
+	for {
+		if uart.Buffered() > 0 {
+			data, _ := uart.ReadByte()
+
+			switch data {
+			case 13:
+				// return key
+				if err := parse(input); err != nil {
+					uart.Write([]byte("ERROR: "))
+					uart.Write([]byte(err.Error()))
+					crlf()
+				}
+				input = input[:0]
+			default:
+				// just capture the character
+				input = append(input, data)
+			}
+		}
+		time.Sleep(10 * time.Millisecond)
+	}
+}
+
+func fail(msg string) {
+	for {
+		uart.Write([]byte(msg))
+		crlf()
+
+		time.Sleep(time.Minute)
+	}
+}

examples/lora/atcmd/parser.go

@@ -0,0 +1,115 @@
+package main
+
+import (
+	"errors"
+	"strings"
+)
+
+var (
+	errInvalidCommand = errors.New("Invalid command")
+)
+
+func parse(data []byte) error {
+	switch {
+	case len(data) < 2, string(data[0:2]) != "AT":
+		return errInvalidCommand
+	case len(data) == 2:
+		// just the AT command by itself
+		quicktest()
+	case len(data) < 6 || data[2] != '+':
+		return errInvalidCommand
+	default:
+		// parse the rest of the command
+		cmd, args, _ := strings.Cut(string(data[3:]), "=")
+		return parseCommand(cmd, args)
+	}
+
+	return nil
+}
+
+func parseCommand(cmd, args string) error {
+	switch cmd {
+	case "VER":
+		version()
+	case "ID":
+		id(args)
+	case "RESET":
+		reset()
+	case "MSG":
+		msg(args)
+	case "CMSG":
+		cmsg(args)
+	case "MSGHEX":
+		msghex(args)
+	case "CMSGHEX":
+		cmsghex(args)
+	case "PMSG":
+		pmsg(args)
+	case "PMSGHEX":
+		pmsg(args)
+	case "PORT":
+		port(args)
+	case "ADR":
+		adr(args)
+	case "DR":
+		dr(args)
+	case "CH":
+		ch(args)
+	case "POWER":
+		power(args)
+	case "REPT":
+		rept(args)
+	case "RETRY":
+		retry(args)
+	case "RXWIN2":
+		rxwin2(args)
+	case "RXWIN1":
+		rxwin1(args)
+	case "KEY":
+		key(args)
+	case "FDEFAULT":
+		fdefault(args)
+	case "MODE":
+		mode(args)
+	case "JOIN":
+		join(args)
+	case "BEACON":
+		join(args)
+	case "CLASS":
+		class(args)
+	case "DELAY":
+		delay(args)
+	case "LW":
+		lw(args)
+	case "WDT":
+		wdt(args)
+	case "LOWPOWER":
+		lowpower(args)
+	case "VDD":
+		vdd(args)
+	case "TEMP":
+		temp(args)
+	case "RTC":
+		rtc(args)
+	case "EEPROM":
+		eeprom(args)
+	case "UART":
+		uartcmd(args)
+	case "TEST":
+		test(args)
+	case "LOG":
+		log(args)
+	case "RECV":
+		recv(args)
+	case "RECVHEX":
+		recvhex(args)
+	case "SEND":
+		send(args)
+	case "SENDHEX":
+		sendhex(args)
+	default:
+		return errInvalidCommand
+	}
+
+	return nil
+}

examples/lora/atcmd/radio.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"errors"
+)
+
+var (
+	errRadioNotFound = errors.New("radio not found")
+	errRxTimeout     = errors.New("radio RX timeout")
+)
+
+type LoraRadio interface {
+	Reset()
+	Tx(pkt []uint8, timeoutMs uint32) error
+	Rx(timeoutMs uint32) ([]uint8, error)
+	SetFrequency(freq uint32)
+	SetIqMode(mode uint8)
+	SetCodingRate(cr uint8)
+	SetBandwidth(bw uint8)
+	SetCrc(enable bool)
+	SetSpreadingFactor(sf uint8)
+}

examples/lora/atcmd/sim.go

@@ -0,0 +1,37 @@
+//go:build !featherwing && !gnse && !lorae5 && !nucleowl55jc
+
+package main
+
+// do simulator setup here
+func setupLora() (LoraRadio, error) {
+	return &SimLoraRadio{}, nil
+}
+
+type SimLoraRadio struct {
+}
+
+func (sr *SimLoraRadio) Reset() {
+}
+
+func (sr *SimLoraRadio) Tx(pkt []uint8, timeoutMs uint32) error {
+	return nil
+}
+
+func (sr *SimLoraRadio) Rx(timeoutMs uint32) ([]uint8, error) {
+	return nil, nil
+}
+
+func (sr *SimLoraRadio) SetFrequency(freq uint32)    {}
+func (sr *SimLoraRadio) SetIqMode(mode uint8)        {}
+func (sr *SimLoraRadio) SetCodingRate(cr uint8)      {}
+func (sr *SimLoraRadio) SetBandwidth(bw uint8)       {}
+func (sr *SimLoraRadio) SetCrc(enable bool)          {}
+func (sr *SimLoraRadio) SetSpreadingFactor(sf uint8) {}
+
+func firmwareVersion() string {
+	return "simulator " + currentVersion()
+}
+
+func lorarx() ([]byte, error) {
+	return nil, nil
+}

examples/lora/atcmd/sx126x.go

@@ -0,0 +1,73 @@
+//go:build gnse || lorae5 || nucleowl55jc
+
+package main
+
+import (
+	"device/stm32"
+	"machine"
+	"runtime/interrupt"
+
+	rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
+
+	"tinygo.org/x/drivers/lora"
+	"tinygo.org/x/drivers/sx126x"
+)
+
+const (
+	FREQ                      = 868100000
+	LORA_DEFAULT_RXTIMEOUT_MS = 1000
+	LORA_DEFAULT_TXTIMEOUT_MS = 5000
+)
+
+var (
+	loraRadio *sx126x.Device
+)
+
+// do sx126x setup here
+func setupLora() (LoraRadio, error) {
+	loraRadio = sx126x.New(machine.SPI3)
+	loraRadio.SetDeviceType(sx126x.DEVICE_TYPE_SX1262)
+
+	// Create RF Switch
+	var radioSwitch rfswitch.CustomSwitch
+	loraRadio.SetRfSwitch(radioSwitch)
+
+	if state := loraRadio.DetectDevice(); !state {
+		return nil, errRadioNotFound
+	}
+
+	// Add interrupt handler for Radio IRQs
+	intr := interrupt.New(stm32.IRQ_Radio_IRQ_Busy, radioIntHandler)
+	intr.Enable()
+
+	loraConf := lora.Config{
+		Freq:           FREQ,
+		Bw:             lora.Bandwidth_500_0,
+		Sf:             lora.SpreadingFactor9,
+		Cr:             lora.CodingRate4_7,
+		HeaderType:     lora.HeaderExplicit,
+		Preamble:       12,
+		Ldr:            lora.LowDataRateOptimizeOff,
+		Iq:             lora.IQStandard,
+		Crc:            lora.CRCOn,
+		SyncWord:       lora.SyncPrivate,
+		LoraTxPowerDBm: 20,
+	}
+
+	loraRadio.LoraConfig(loraConf)
+
+	return loraRadio, nil
+}
+
+// radioIntHandler will take care of radio interrupts
+func radioIntHandler(intr interrupt.Interrupt) {
+	loraRadio.HandleInterrupt()
+}
+
+func firmwareVersion() string {
+	return "sx126x"
+}
+
+func lorarx() ([]byte, error) {
+	return loraRadio.Rx(LORA_DEFAULT_RXTIMEOUT_MS)
+}

examples/lora/atcmd/sx127x.go

@@ -0,0 +1,85 @@
+//go:build featherwing
+
+package main
+
+import (
+	"strconv"
+
+	"machine"
+
+	"tinygo.org/x/drivers/lora"
+	"tinygo.org/x/drivers/sx127x"
+)
+
+const (
+	FREQ                      = 868100000
+	LORA_DEFAULT_RXTIMEOUT_MS = 1000
+	LORA_DEFAULT_TXTIMEOUT_MS = 5000
+)
+
+var (
+	// We assume LoRa Featherwing module is connected to PyBadge:
+	rstPin    = machine.D11
+	csPin     = machine.D10
+	dio0Pin   = machine.D6
+	dio1Pin   = machine.D9
+	spi       = machine.SPI0
+	loraRadio *sx127x.Device
+)
+
+// do sx127x setup here
+func setupLora() (LoraRadio, error) {
+	rstPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	csPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	dio0Pin.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
+	dio1Pin.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
+	spi.Configure(machine.SPIConfig{Frequency: 500000, Mode: 0})
+
+	loraRadio = sx127x.New(spi, csPin, rstPin)
+	loraRadio.Reset()
+
+	if state := loraRadio.DetectDevice(); !state {
+		return nil, errRadioNotFound
+	}
+
+	// Setup DIO0 interrupt Handling
+	if err := dio0Pin.SetInterrupt(machine.PinRising, dioIrqHandler); err != nil {
+		println("could not configure DIO0 pin interrupt:", err.Error())
+	}
+
+	// Setup DIO1 interrupt Handling
+	if err := dio1Pin.SetInterrupt(machine.PinRising, dioIrqHandler); err != nil {
+		println("could not configure DIO1 pin interrupt:", err.Error())
+	}
+
+	// Prepare for Lora Operation
+	loraConf := lora.Config{
+		Freq:           FREQ,
+		Bw:             lora.Bandwidth_500_0,
+		Sf:             lora.SpreadingFactor9,
+		Cr:             lora.CodingRate4_7,
+		HeaderType:     lora.HeaderExplicit,
+		Preamble:       12,
+		Iq:             lora.IQStandard,
+		Crc:            lora.CRCOn,
+		SyncWord:       lora.SyncPrivate,
+		LoraTxPowerDBm: 20,
+	}
+
+	loraRadio.LoraConfig(loraConf)
+
+	return loraRadio, nil
+}
+
+func dioIrqHandler(machine.Pin) {
+	loraRadio.HandleInterrupt()
+}
+
+func firmwareVersion() string {
+	v := loraRadio.GetVersion()
+	return "sx127x v" + strconv.Itoa(int(v))
+}
+
+func lorarx() ([]byte, error) {
+	return loraRadio.Rx(LORA_DEFAULT_RXTIMEOUT_MS)
+}

examples/lora/atcmd/version.go

@@ -0,0 +1,7 @@
+package main
+
+const VERSION = "0.0.1"
+
+func currentVersion() string {
+	return VERSION
+}

examples/lora/atcmd/wl55jc.go

@@ -0,0 +1,54 @@
+//go:build nucleowl55jc
+
+/*
+	Nucleo WL55JC1
+	RFSwitch
+
++-----------+---------+------------+------------+
+|           | FE_CTRL1 |  FE_CTRL2 |   FE_CTRL3 |
+|           |   (PC4)  |   (PC5)   |     (PC3)  |
++-----------+----------+-----------+------------+
+|  TX_HP    |   LOW    |   HIGH    |    HIGH    |
+|  TX_LP    |   HIGH   |   HIGH    |    HIGH    |
+|  RX       |   HIGH   |   LOW     |    HIGH    |
++-----------+----------+-----------+------------+
+*/
+package main
+
+import (
+	"machine"
+
+	"tinygo.org/x/drivers/sx126x"
+)
+
+type CustomSwitch struct {
+}
+
+func (s CustomSwitch) InitRFSwitch() {
+	machine.PC4.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	machine.PC5.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	machine.PC3.Configure(machine.PinConfig{Mode: machine.PinOutput})
+}
+
+func (s CustomSwitch) SetRfSwitchMode(mode int) error {
+	switch mode {
+
+	case sx126x.RFSWITCH_TX_HP:
+		machine.PC4.Set(false)
+		machine.PC5.Set(true)
+		machine.PC3.Set(true)
+
+	case sx126x.RFSWITCH_TX_LP:
+		machine.PC4.Set(true)
+		machine.PC5.Set(true)
+		machine.PC3.Set(true)
+
+	case sx126x.RFSWITCH_RX:
+		machine.PC4.Set(true)
+		machine.PC5.Set(false)
+		machine.PC3.Set(true)
+
+	}
+	return nil
+
+}

examples/rtl8720dn/ntpclient/main.go

@@ -100,9 +100,7 @@ func getCurrentTime(conn *net.UDPSerialConn) (time.Time, error) {
 		} else if n == 0 {
 			continue // no packet received yet
 		} else if n != NTP_PACKET_SIZE {
-			if n != NTP_PACKET_SIZE {
-				return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
-			}
+			return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
 		}
 		return parseNTPpacket(), nil
 	}

examples/sdcard/console/feather-m4.go

@@ -1,5 +1,4 @@
 //go:build feather_m4 || feather_m4_can || feather_nrf52840
-// +build feather_m4 feather_m4_can feather_nrf52840
 
 package main
 

examples/sdcard/console/grandcentral-m4.go

@@ -1,5 +1,4 @@
 //go:build grandcentral_m4
-// +build grandcentral_m4
 
 package main
 

examples/sdcard/console/m0.go

@@ -1,5 +1,4 @@
 //go:build atsamd21 && !p1am_100
-// +build atsamd21,!p1am_100
 
 package main
 

examples/sdcard/console/p1am-100.go

@@ -1,5 +1,4 @@
 //go:build p1am_100
-// +build p1am_100
 
 package main
 

examples/sdcard/console/pygamer.go

@@ -1,5 +1,4 @@
 //go:build pygamer
-// +build pygamer
 
 package main
 

examples/sdcard/console/pyportal.go

@@ -1,5 +1,4 @@
 //go:build pyportal
-// +build pyportal
 
 package main
 

examples/sdcard/console/thingplus-rp2040.go

@@ -1,5 +1,4 @@
 //go:build thingplus_rp2040
-// +build thingplus_rp2040
 
 package main
 

examples/sdcard/console/wioterminal.go

@@ -1,5 +1,4 @@
 //go:build wioterminal
-// +build wioterminal
 
 package main
 

examples/sdcard/tinyfs/console/console.go

@@ -1,5 +1,4 @@
 //go:build tinygo
-// +build tinygo
 
 package console
 

examples/sdcard/tinyfs/feather-m4.go

@@ -1,5 +1,4 @@
 //go:build feather_m4 || feather_m4_can || feather_nrf52840
-// +build feather_m4 feather_m4_can feather_nrf52840
 
 package main
 

examples/sdcard/tinyfs/grandcentral-m4.go

@@ -1,5 +1,4 @@
 //go:build grandcentral_m4
-// +build grandcentral_m4
 
 package main
 

examples/sdcard/tinyfs/m0.go

@@ -1,5 +1,4 @@
 //go:build atsamd21 && !p1am_100
-// +build atsamd21,!p1am_100
 
 package main
 

examples/sdcard/tinyfs/p1am-100.go

@@ -1,5 +1,4 @@
 //go:build p1am_100
-// +build p1am_100
 
 package main
 

examples/sdcard/tinyfs/pygamer.go

@@ -1,5 +1,4 @@
 //go:build pygamer
-// +build pygamer
 
 package main
 

examples/sdcard/tinyfs/pyportal.go

@@ -1,5 +1,4 @@
 //go:build pyportal
-// +build pyportal
 
 package main
 

examples/sdcard/tinyfs/thingplus-rp2040.go

@@ -1,5 +1,4 @@
 //go:build thingplus_rp2040
-// +build thingplus_rp2040
 
 package main
 

examples/sdcard/tinyfs/wioterminal.go

@@ -1,5 +1,4 @@
 //go:build wioterminal
-// +build wioterminal
 
 package main
 

examples/sh1106/macropad_spi/main.go

@@ -0,0 +1,56 @@
+//go:build macropad_rp2040
+
+package main
+
+import (
+	"image/color"
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/sh1106"
+)
+
+var (
+	display = sh1106.NewSPI(machine.SPI1, machine.OLED_DC, machine.OLED_RST, machine.OLED_CS)
+)
+
+func init() {
+	machine.SPI1.Configure(machine.SPIConfig{
+		Frequency: 48000000,
+	})
+	display.Configure(sh1106.Config{
+		Width:  128,
+		Height: 64,
+	})
+}
+
+func main() {
+
+	display.ClearDisplay()
+
+	x := int16(0)
+	y := int16(0)
+	deltaX := int16(1)
+	deltaY := int16(1)
+	for {
+		pixel := display.GetPixel(x, y)
+		c := color.RGBA{255, 255, 255, 255}
+		if pixel {
+			c = color.RGBA{0, 0, 0, 255}
+		}
+		display.SetPixel(x, y, c)
+		display.Display()
+
+		x += deltaX
+		y += deltaY
+
+		if x == 0 || x == 127 {
+			deltaX = -deltaX
+		}
+
+		if y == 0 || y == 63 {
+			deltaY = -deltaY
+		}
+		time.Sleep(1 * time.Millisecond)
+	}
+}

examples/sx126x/lora_continuous/lora_continuous.go

@@ -7,6 +7,7 @@ import (
 
 	rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
 
+	"tinygo.org/x/drivers/lora"
 	"tinygo.org/x/drivers/sx126x"
 )
 
@@ -36,17 +37,17 @@ func main() {
 	}
 
 	// Prepare for Lora operation
-	loraConf := sx126x.LoraConfig{
+	loraConf := lora.Config{
 		Freq:           FREQ,
-		Bw:             sx126x.SX126X_LORA_BW_500_0,
-		Sf:             sx126x.SX126X_LORA_SF9,
-		Cr:             sx126x.SX126X_LORA_CR_4_7,
-		HeaderType:     sx126x.SX126X_LORA_HEADER_EXPLICIT,
+		Bw:             lora.Bandwidth_500_0,
+		Sf:             lora.SpreadingFactor9,
+		Cr:             lora.CodingRate4_7,
+		HeaderType:     lora.HeaderExplicit,
 		Preamble:       12,
-		Ldr:            sx126x.SX126X_LORA_LOW_DATA_RATE_OPTIMIZE_OFF,
-		Iq:             sx126x.SX126X_LORA_IQ_STANDARD,
-		Crc:            sx126x.SX126X_LORA_CRC_ON,
-		SyncWord:       sx126x.SX126X_LORA_MAC_PRIVATE_SYNCWORD,
+		Ldr:            lora.LowDataRateOptimizeOff,
+		Iq:             lora.IQStandard,
+		Crc:            lora.CRCOn,
+		SyncWord:       lora.SyncPrivate,
 		LoraTxPowerDBm: 14,
 	}
 	loraRadio.LoraConfig(loraConf)

examples/sx126x/lora_rxtx/lora_rxtx.go

@@ -11,6 +11,7 @@ import (
 
 	rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
 
+	"tinygo.org/x/drivers/lora"
 	"tinygo.org/x/drivers/sx126x"
 )
 
@@ -54,17 +55,17 @@ func main() {
 	intr := interrupt.New(stm32.IRQ_Radio_IRQ_Busy, radioIntHandler)
 	intr.Enable()
 
-	loraConf := sx126x.LoraConfig{
+	loraConf := lora.Config{
 		Freq:           FREQ,
-		Bw:             sx126x.SX126X_LORA_BW_500_0,
-		Sf:             sx126x.SX126X_LORA_SF9,
-		Cr:             sx126x.SX126X_LORA_CR_4_7,
-		HeaderType:     sx126x.SX126X_LORA_HEADER_EXPLICIT,
+		Bw:             lora.Bandwidth_500_0,
+		Sf:             lora.SpreadingFactor9,
+		Cr:             lora.CodingRate4_7,
+		HeaderType:     lora.HeaderExplicit,
 		Preamble:       12,
-		Ldr:            sx126x.SX126X_LORA_LOW_DATA_RATE_OPTIMIZE_OFF,
-		Iq:             sx126x.SX126X_LORA_IQ_STANDARD,
-		Crc:            sx126x.SX126X_LORA_CRC_ON,
-		SyncWord:       sx126x.SX126X_LORA_MAC_PRIVATE_SYNCWORD,
+		Ldr:            lora.LowDataRateOptimizeOff,
+		Iq:             lora.IQStandard,
+		Crc:            lora.CRCOn,
+		SyncWord:       lora.SyncPrivate,
 		LoraTxPowerDBm: 20,
 	}
 
@@ -74,21 +75,18 @@ func main() {
 	for {
 		tStart := time.Now()
 
-		// Blocking RX for LORA_DEFAULT_RXTIMEOUT_MS
-		println("Start Lora RX for 10 sec")
+		println("main: Receiving Lora for 10 seconds")
 		for int(time.Now().Sub(tStart).Seconds()) < 10 {
-			buf, err := loraRadio.LoraRx(LORA_DEFAULT_RXTIMEOUT_MS)
-
+			buf, err := loraRadio.Rx(LORA_DEFAULT_RXTIMEOUT_MS)
 			if err != nil {
 				println("RX Error: ", err)
 			} else if buf != nil {
 				println("Packet Received: len=", len(buf), string(buf))
 			}
 		}
-		println("END Lora RX")
-
-		println("LORA TX size=", len(txmsg))
-		err := loraRadio.LoraTx(txmsg, LORA_DEFAULT_TXTIMEOUT_MS)
+		println("main: End Lora RX")
+		println("LORA TX size=", len(txmsg), " -> ", string(txmsg))
+		err := loraRadio.Tx(txmsg, LORA_DEFAULT_TXTIMEOUT_MS)
 		if err != nil {
 			println("TX Error:", err)
 		}

examples/sx126x/rfswitch/gnse.go

@@ -1,5 +1,4 @@
 //go:build gnse
-// +build gnse
 
 /*
 Generic Node Sensor Edition

examples/sx126x/rfswitch/lorae5.go

@@ -1,5 +1,4 @@
 //go:build lorae5
-// +build lorae5
 
 package radio
 

examples/sx126x/rfswitch/wl55jc.go

@@ -1,5 +1,4 @@
 //go:build nucleowl55jc
-// +build nucleowl55jc
 
 /*
 	Nucleo WL55JC1

examples/sx127x/lora_rxtx/lora_rxtx.go

@@ -0,0 +1,106 @@
+package main
+
+// This example code demonstrates Lora RX/TX With SX127x driver
+// You need to connect SPI, RST, CS, DIO0 (aka IRQ) and DIO1 to use.
+
+import (
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers/lora"
+	"tinygo.org/x/drivers/sx127x"
+)
+
+const FREQ = 868100000
+
+const (
+	LORA_DEFAULT_RXTIMEOUT_MS = 1000
+	LORA_DEFAULT_TXTIMEOUT_MS = 5000
+)
+
+var (
+	loraRadio *sx127x.Device
+	txmsg     = []byte("Hello TinyGO")
+
+	// We assume LoRa Featherwing module is connected to PyBadge:
+	SX127X_PIN_RST  = machine.D11
+	SX127X_PIN_CS   = machine.D10
+	SX127X_PIN_DIO0 = machine.D6
+	SX127X_PIN_DIO1 = machine.D9
+	SX127X_SPI      = machine.SPI0
+)
+
+func dioIrqHandler(machine.Pin) {
+	loraRadio.HandleInterrupt()
+}
+
+func main() {
+	time.Sleep(5 * time.Second)
+	println("\n# TinyGo Lora RX/TX test")
+	println("# ----------------------")
+	machine.LED.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	SX127X_PIN_RST.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	SX127X_PIN_CS.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	SX127X_PIN_DIO0.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
+	SX127X_PIN_DIO1.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
+	SX127X_SPI.Configure(machine.SPIConfig{Frequency: 500000, Mode: 0})
+
+	println("main: create and start SX127x driver")
+	loraRadio = sx127x.New(SX127X_SPI, SX127X_PIN_CS, SX127X_PIN_RST)
+	loraRadio.Reset()
+	state := loraRadio.DetectDevice()
+	if !state {
+		panic("main: sx127x NOT FOUND !!!")
+	} else {
+		println("main: sx127x found")
+	}
+
+	// Setup DIO0 interrupt Handling
+	if err := SX127X_PIN_DIO0.SetInterrupt(machine.PinRising, dioIrqHandler); err != nil {
+		println("could not configure DIO0 pin interrupt:", err.Error())
+	}
+
+	// Setup DIO1 interrupt Handling
+	if err := SX127X_PIN_DIO1.SetInterrupt(machine.PinRising, dioIrqHandler); err != nil {
+		println("could not configure DIO1 pin interrupt:", err.Error())
+	}
+
+	// Prepare for Lora Operation
+	loraConf := lora.Config{
+		Freq:           FREQ,
+		Bw:             lora.Bandwidth_500_0,
+		Sf:             lora.SpreadingFactor9,
+		Cr:             lora.CodingRate4_7,
+		HeaderType:     lora.HeaderExplicit,
+		Preamble:       12,
+		Iq:             lora.IQStandard,
+		Crc:            lora.CRCOn,
+		SyncWord:       lora.SyncPrivate,
+		LoraTxPowerDBm: 20,
+	}
+
+	loraRadio.LoraConfig(loraConf)
+
+	var count uint
+	for {
+		tStart := time.Now()
+
+		println("main: Receiving Lora for 10 seconds")
+		for time.Since(tStart) < 10*time.Second {
+			buf, err := loraRadio.Rx(LORA_DEFAULT_RXTIMEOUT_MS)
+			if err != nil {
+				println("RX Error: ", err)
+			} else if buf != nil {
+				println("Packet Received: len=", len(buf), string(buf))
+			}
+		}
+		println("main: End Lora RX")
+		println("LORA TX size=", len(txmsg), " -> ", string(txmsg))
+		err := loraRadio.Tx(txmsg, LORA_DEFAULT_TXTIMEOUT_MS)
+		if err != nil {
+			println("TX Error:", err)
+		}
+		count++
+	}
+
+}

examples/wifi/tcpclient/espat.go

@@ -1,5 +1,4 @@
 //go:build espat
-// +build espat
 
 package main
 

examples/wifi/tcpclient/rtl8720dn.go

@@ -1,5 +1,4 @@
 //go:build rtl8720dn
-// +build rtl8720dn
 
 package main
 

examples/wifi/tcpclient/wifinina.go

@@ -1,5 +1,4 @@
 //go:build wifinina
-// +build wifinina
 
 package main
 

examples/wifinina/ntpclient/main.go

@@ -111,9 +111,7 @@ func getCurrentTime(conn *net.UDPSerialConn) (time.Time, error) {
 		} else if n == 0 {
 			continue // no packet received yet
 		} else if n != NTP_PACKET_SIZE {
-			if n != NTP_PACKET_SIZE {
-				return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
-			}
+			return time.Time{}, fmt.Errorf("expected NTP packet size of %d: %d", NTP_PACKET_SIZE, n)
 		}
 		return parseNTPpacket(), nil
 	}

examples/wifinina/pins/main.go

@@ -1,5 +1,4 @@
 //go:build nano_rp2040
-// +build nano_rp2040
 
 // This examples shows how to control RGB LED connected to
 // NINA-W102 chip on Arduino Nano RP2040 Connect board

examples/wifinina/webserver/main.go

@@ -0,0 +1,209 @@
+package main
+
+import (
+	"fmt"
+	"machine"
+	"strconv"
+	"time"
+
+	"tinygo.org/x/drivers/net/http"
+	"tinygo.org/x/drivers/wifinina"
+)
+
+// You can override the settings with the init() in another source code:
+//
+// func init() {
+//    ssid = "your-ssid"
+//    pass = "your-password"
+// }
+//
+// Or use -ldflags option on tinygo command to set at compile-time:
+//
+// tinygo flash ... -ldflags '-X "main.ssid=xxx" -X "main.pass=xxx"' ...
+//
+
+var (
+	ssid string
+	pass string
+)
+
+var led = machine.LED
+
+func main() {
+	led.Configure(machine.PinConfig{Mode: machine.PinOutput})
+
+	err := run()
+	for err != nil {
+		fmt.Printf("error: %s\r\n", err.Error())
+		time.Sleep(5 * time.Second)
+	}
+}
+
+func run() error {
+
+	spi := machine.NINA_SPI
+	spi.Configure(machine.SPIConfig{
+		Frequency: 8 * 1e6,
+		SDO:       machine.NINA_SDO,
+		SDI:       machine.NINA_SDI,
+		SCK:       machine.NINA_SCK,
+	})
+
+	adaptor := wifinina.New(spi,
+		machine.NINA_CS,
+		machine.NINA_ACK,
+		machine.NINA_GPIO0,
+		machine.NINA_RESETN)
+	adaptor.Configure()
+
+	time.Sleep(2 * time.Second)
+	println("Connecting to " + ssid)
+	err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second)
+	if err != nil {
+		return err
+	}
+
+	println("Connected.")
+
+	time.Sleep(2 * time.Second)
+	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.UseDriver(adaptor)
+
+	http.HandleFunc("/", root)
+	http.HandleFunc("/hello", hello)
+	http.HandleFunc("/cnt", cnt)
+	http.HandleFunc("/6", sixlines)
+	http.HandleFunc("/off", LED_OFF)
+	http.HandleFunc("/on", LED_ON)
+
+	return http.ListenAndServe(":80", nil)
+}
+
+func root(w http.ResponseWriter, r *http.Request) {
+	access := 1
+
+	cookie, err := r.Cookie("access")
+	if err != nil {
+		if err == http.ErrNoCookie {
+			cookie = &http.Cookie{
+				Name:  "access",
+				Value: "1",
+			}
+		} else {
+			http.Error(w, fmt.Sprintf("%s", err.Error()), http.StatusBadRequest)
+			return
+		}
+	} else {
+		v, err := strconv.ParseInt(cookie.Value, 10, 0)
+		if err != nil {
+			http.Error(w, fmt.Sprintf("invalid cookie.Value : %s", cookie.Value), http.StatusBadRequest)
+			return
+		}
+		cookie.Value = fmt.Sprintf("%d", v+1)
+		access = int(v) + 1
+	}
+	http.SetCookie(w, cookie)
+	w.WriteHeader(http.StatusOK)
+
+	fmt.Fprintf(w, `
+<html>
+<head>
+    <title>TinyGo HTTP Server</title>
+    <script language="javascript" type="text/javascript">
+        var counter = 0
+        function ledOn() { fetch("/on"); }
+        function ledOff() { fetch("/off"); }
+        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", {
+            method: "POST",
+            body: "cnt=" + document.getElementsByName("cnt")[0].value,
+            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+        }).then(response => response.json()).then(json => { counter = json.cnt; cnt.innerHTML = counter; }); return false; }
+        function onLoad() { fetchCnt(); }
+    </script>
+</head>
+<body onLoad="onLoad()">
+    <h5>TinyGo HTTP Server</h5>
+
+    <p>
+        access: %d
+    </p>
+
+    <a href="/hello">/hello</a><br>
+    <a href="/6">/6</a><br>
+
+    <p>
+        LED<br>
+        <a href="javascript:ledOn();">/on</a><br>
+        <a href="javascript:ledOff();">/off</a><br>
+    </p>
+
+
+    <p>
+        <a href="/cnt">/cnt</a><br>
+        cnt: <span id="cnt"></span><br>
+        <a href="javascript:incrCnt()">incrCnt()</a><br>
+        <form id="form1" style="display: inline" onSubmit="return setCnt()">
+        <input type="text" name="cnt">
+        <input type="button" value="set cnt", onClick="setCnt()">
+        </form>
+    </p>
+</body>
+</html>
+    `, access)
+}
+
+func sixlines(w http.ResponseWriter, r *http.Request) {
+	// https://fukuno.jig.jp/3267
+	fmt.Fprint(w, `<body onload='onkeydown=e=>K=parseInt(e.key[5]||6,28)/3-8;Z=X=[B=A=12];Y=_=>`+
+		`{for(C=[q=c=i=4];f=i--*K;c-=!Z[h+(K+6?p+K:C[i]=p*A-(p/9|0)*145)])p=B[i];for(c?0:K+6?h+=K:B=C;`+
+		`i=K=q--;f+=Z[A+p])X[p=h+B[q]]=1;h+=A;if(f|B)for(Z=X,X=[l=228],B=[[-7,-20,6,h=17,-9,3,3][t=++t%7]-4,0,1,t-6?-A:2];l--;)`+
+		`for(l%A?l-=l%A*!Z[l]:(P++,c=l+=A);--c>A;)Z[c]=Z[c-A];for(S="";i<240;S+=X[i]|(X[i]=Z[i]|=++i%A<2|i>228)?i%A?"■":"■<br>":"　");`+
+		`D.innerHTML=S+P;setTimeout(Y,i-P)};Y(h=K=t=P=0)'id=D>`)
+}
+
+func LED_ON(w http.ResponseWriter, r *http.Request) {
+	led.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()
+	w.Header().Set(`Content-Type`, `text/plain; charset=UTF-8`)
+	fmt.Fprintf(w, "led.Low()")
+}
+
+func hello(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set(`Content-Type`, `text/plain; charset=UTF-8`)
+	fmt.Fprintf(w, "hello")
+}
+
+var counter int
+
+func cnt(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	if r.Method == "POST" {
+		c := r.Form.Get("cnt")
+		if c != "" {
+			i64, _ := strconv.ParseInt(c, 0, 0)
+			counter = int(i64)
+		}
+	}
+
+	w.Header().Set(`Content-Type`, `application/json`)
+	fmt.Fprintf(w, `{"cnt": %d}`, counter)
+}
+
+func message(msg string) {
+	println(msg, "\r")
+}

examples/ws2812/arduino.go

@@ -1,5 +1,4 @@
 //go:build arduino
-// +build arduino
 
 package main
 

examples/ws2812/digispark.go

@@ -1,5 +1,4 @@
 //go:build digispark
-// +build digispark
 
 package main
 

examples/ws2812/others.go

@@ -1,5 +1,4 @@
 //go:build !digispark && !arduino && !qtpy && !m5stamp_c3 && !thingplus_rp2040
-// +build !digispark,!arduino,!qtpy,!m5stamp_c3,!thingplus_rp2040
 
 package main
 

examples/ws2812/others_wo_led.go

@@ -1,5 +1,4 @@
 //go:build qtpy || m5stamp_c3
-// +build qtpy m5stamp_c3
 
 package main
 

examples/ws2812/qtpy.go

@@ -1,5 +1,4 @@
 //go:build qtpy
-// +build qtpy
 
 package main
 

examples/ws2812/thingplus-rp2040.go

@@ -1,5 +1,4 @@
 //go:build thingplus_rp2040
-// +build thingplus_rp2040
 
 package main
 

flash/transport_qspi_samd.go

@@ -1,5 +1,4 @@
 //go:build atsamd51
-// +build atsamd51
 
 package flash
 

hts221/hts221_generic.go

@@ -1,5 +1,4 @@
 //go:build !nano_33_ble
-// +build !nano_33_ble
 
 package hts221
 

hts221/hts221_nano_33_ble.go

@@ -1,5 +1,4 @@
 //go:build nano_33_ble
-// +build nano_33_ble
 
 package hts221
 

i2csoft/i2csoft_atsamd51.go

@@ -1,5 +1,4 @@
 //go:build atsamd51 || atsame5x
-// +build atsamd51 atsame5x
 
 package i2csoft
 

i2csoft/i2csoft_esp32.go

@@ -1,5 +1,4 @@
 //go:build esp32
-// +build esp32
 
 package i2csoft
 

i2csoft/i2csoft_nrf52840.go

@@ -1,5 +1,4 @@
 //go:build nrf52840
-// +build nrf52840
 
 package i2csoft
 

i2csoft/i2csoft_other.go

@@ -1,5 +1,4 @@
 //go:build !esp32 && !atsamd51 && !atsame5x && !stm32f4 && !rp2040 && !nrf52840
-// +build !esp32,!atsamd51,!atsame5x,!stm32f4,!rp2040,!nrf52840
 
 package i2csoft
 

i2csoft/i2csoft_rp2040.go

@@ -1,5 +1,4 @@
 //go:build rp2040
-// +build rp2040
 
 package i2csoft
 

i2csoft/i2csoft_stm32f4.go

@@ -1,5 +1,4 @@
 //go:build stm32f4
-// +build stm32f4
 
 package i2csoft
 

ili9341/parallel_atsamd51.go

@@ -1,5 +1,4 @@
 //go:build atsamd51
-// +build atsamd51
 
 package ili9341
 

ili9341/spi.go

@@ -1,5 +1,4 @@
 //go:build !atsamd51 && !atsame5x && !atsamd21
-// +build !atsamd51,!atsame5x,!atsamd21
 
 package ili9341
 

ili9341/spi_atsamd21.go

@@ -1,5 +1,4 @@
 //go:build atsamd21
-// +build atsamd21
 
 package ili9341
 

ili9341/spi_atsamd51.go

@@ -1,5 +1,4 @@
 //go:build atsamd51 || atsame5x
-// +build atsamd51 atsame5x
 
 package ili9341
 

image/internal/imageutil/gen.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build ignore
-// +build ignore
 
 package main
 

image/png/fuzz.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gofuzz
-// +build gofuzz
 
 package png
 

lora/config.go

@@ -0,0 +1,78 @@
+package lora
+
+import "errors"
+
+// Config holds the LoRa configuration parameters
+type Config struct {
+	Freq           uint32 // Frequency
+	Cr             uint8  // Coding Rate
+	Sf             uint8  // Spread Factor
+	Bw             uint8  // Bandwidth
+	Ldr            uint8  // Low Data Rate
+	Preamble       uint16 // PreambleLength
+	SyncWord       uint16 // Sync Word
+	HeaderType     uint8  // Header : Implicit/explicit
+	Crc            uint8  // CRC : Yes/No
+	Iq             uint8  // iq : Standard/inverted
+	LoraTxPowerDBm int8   // Tx power in Dbm
+}
+
+var (
+	ErrUndefinedLoraConf = errors.New("Undefined Lora configuration")
+)
+
+const (
+	SpreadingFactor5  = 0x05
+	SpreadingFactor6  = 0x06
+	SpreadingFactor7  = 0x07
+	SpreadingFactor8  = 0x08
+	SpreadingFactor9  = 0x09
+	SpreadingFactor10 = 0x0A
+	SpreadingFactor11 = 0x0B
+	SpreadingFactor12 = 0x0C
+)
+
+const (
+	CodingRate4_5 = 0x01 //  7     0     LoRa coding rate: 4/5
+	CodingRate4_6 = 0x02 //  7     0                       4/6
+	CodingRate4_7 = 0x03 //  7     0                       4/7
+	CodingRate4_8 = 0x04 //  7     0                       4/8
+)
+
+const (
+	HeaderExplicit = 0x00 //  7     0     LoRa header mode: explicit
+	HeaderImplicit = 0x01 //  7     0                       implicit
+)
+
+const (
+	LowDataRateOptimizeOff = 0x00 //  7     0     LoRa low data rate optimization: disabled
+	LowDataRateOptimizeOn  = 0x01 //  7     0                                      enabled
+)
+
+const (
+	CRCOff = 0x00 //  7     0     LoRa CRC mode: disabled
+	CRCOn  = 0x01 //  7     0                    enabled
+)
+
+const (
+	IQStandard = 0x00 //  7     0     LoRa IQ setup: standard
+	IQInverted = 0x01 //  7     0                    inverted
+)
+
+const (
+	Bandwidth_7_8   = iota // 7.8 kHz
+	Bandwidth_10_4         // 10.4 kHz
+	Bandwidth_15_6         // 15.6 kHz
+	Bandwidth_20_8         // 20.8 kHz
+	Bandwidth_31_25        // 31.25 kHz
+	Bandwidth_41_7         // 41.7 kHz
+	Bandwidth_62_5         // 62.5 kHz
+	Bandwidth_125_0        // 125.0 kHz
+	Bandwidth_250_0        // 250.0 kHz
+	Bandwidth_500_0        // 500.0 kHz
+)
+
+const (
+	SyncPublic = iota
+	SyncPrivate
+)

lora/radio_event.go

@@ -0,0 +1,23 @@
+package lora
+
+const (
+	RadioEventRxDone = iota
+	RadioEventTxDone
+	RadioEventTimeout
+	RadioEventWatchdog
+	RadioEventCrcError
+	RadioEventUnhandled
+)
+
+// RadioEvent are used for communicating in the radio Event Channel
+type RadioEvent struct {
+	EventType int
+	IRQStatus uint16
+	EventData []byte
+}
+
+// NewRadioEvent() returns a new RadioEvent that can be used in the RadioChannel
+func NewRadioEvent(eType int, irqStatus uint16, eData []byte) RadioEvent {
+	r := RadioEvent{EventType: eType, IRQStatus: irqStatus, EventData: eData}
+	return r
+}

lps22hb/lps22hb_generic.go

@@ -1,5 +1,4 @@
 //go:build !nano_33_ble
-// +build !nano_33_ble
 
 package lps22hb
 

lps22hb/lps22hb_nano_33_ble.go

@@ -1,5 +1,4 @@
 //go:build nano_33_ble
-// +build nano_33_ble
 
 package lps22hb
 

lsm6ds3tr/lsm6ds3tr_generic.go

@@ -1,5 +1,4 @@
 //go:build !xiao_ble
-// +build !xiao_ble
 
 package lsm6ds3tr
 

lsm6ds3tr/lsm6ds3tr_xiao_ble.go

@@ -1,5 +1,4 @@
 //go:build xiao_ble
-// +build xiao_ble
 
 package lsm6ds3tr
 

lsm9ds1/lsm9ds1_generic.go

@@ -1,5 +1,4 @@
 //go:build !nano_33_ble
-// +build !nano_33_ble
 
 package lsm9ds1
 

lsm9ds1/lsm9ds1_nano_33_ble.go

@@ -1,5 +1,4 @@
 //go:build nano_33_ble
-// +build nano_33_ble
 
 // Nano 33 BLE [Sense] has LSM9DS1 unit on-board.
 // This custom Configure function powers unit up

microbitmatrix/microbitmatrix-v1.go

@@ -1,5 +1,4 @@
 //go:build microbit
-// +build microbit
 
 // Package microbitmatrix implements a driver for the BBC micro:bit's LED matrix.
 //

microbitmatrix/microbitmatrix-v2.go

@@ -1,5 +1,4 @@
 //go:build microbit_v2
-// +build microbit_v2
 
 // Package microbitmatrix implements a driver for the BBC micro:bit version 2 LED matrix.
 //

sh1106/registers.go

@@ -0,0 +1,40 @@
+package sh1106
+
+// Registers
+const (
+	Address = 0x3C
+
+	SETCONTRAST                          = 0x81
+	DISPLAYALLON_RESUME                  = 0xA4
+	DISPLAYALLON                         = 0xA5
+	NORMALDISPLAY                        = 0xA6
+	INVERTDISPLAY                        = 0xA7
+	DISPLAYOFF                           = 0xAE
+	DISPLAYON                            = 0xAF
+	SETDISPLAYOFFSET                     = 0xD3
+	SETCOMPINS                           = 0xDA
+	SETVCOMDETECT                        = 0xDB
+	SETDISPLAYCLOCKDIV                   = 0xD5
+	SETPRECHARGE                         = 0xD9
+	SETMULTIPLEX                         = 0xA8
+	SETLOWCOLUMN                         = 0x00
+	SETHIGHCOLUMN                        = 0x10
+	SETSTARTLINE                         = 0x40
+	MEMORYMODE                           = 0x20
+	COLUMNADDR                           = 0x21
+	PAGEADDR                             = 0x22
+	COMSCANINC                           = 0xC0
+	COMSCANDEC                           = 0xC8
+	SEGREMAP                             = 0xA0
+	CHARGEPUMP                           = 0x8D
+	ACTIVATE_SCROLL                      = 0x2F
+	DEACTIVATE_SCROLL                    = 0x2E
+	SET_VERTICAL_SCROLL_AREA             = 0xA3
+	RIGHT_HORIZONTAL_SCROLL              = 0x26
+	LEFT_HORIZONTAL_SCROLL               = 0x27
+	VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL = 0x29
+	VERTICAL_AND_LEFT_HORIZONTAL_SCROLL  = 0x2A
+
+	EXTERNALVCC  VccMode = 0x1
+	SWITCHCAPVCC VccMode = 0x2
+)

sh1106/sh1106.go

@@ -0,0 +1,326 @@
+// Package sh1106 implements a driver for the SH1106 display controller
+//
+// Copied from https://github.com/toyo/tinygo-sh1106 (under BSD 3-clause license)
+package sh1106 // import "tinygo.org/x/drivers/sh1106"
+
+import (
+	"errors"
+	"image/color"
+	"machine"
+	"time"
+
+	"tinygo.org/x/drivers"
+)
+
+// Device wraps an SPI connection.
+type Device struct {
+	bus        Buser
+	buffer     []byte
+	cmdbuf     [1]byte
+	width      int16
+	height     int16
+	bufferSize int16
+	vccState   VccMode
+}
+
+// Config is the configuration for the display
+type Config struct {
+	Width    int16
+	Height   int16
+	VccState VccMode
+	Address  uint16
+}
+
+type I2CBus struct {
+	wire    drivers.I2C
+	Address uint16
+}
+
+type SPIBus struct {
+	wire     drivers.SPI
+	dcPin    machine.Pin
+	resetPin machine.Pin
+	csPin    machine.Pin
+}
+
+type Buser interface {
+	configure()
+	tx(data []byte, isCommand bool)
+	setAddress(address uint16)
+}
+
+type VccMode uint8
+
+// NewI2C creates a new SSD1306 connection. The I2C wire must already be configured.
+func NewI2C(bus drivers.I2C) Device {
+	return Device{
+		bus: &I2CBus{
+			wire:    bus,
+			Address: Address,
+		},
+	}
+}
+
+// NewSPI creates a new SSD1306 connection. The SPI wire must already be configured.
+func NewSPI(bus drivers.SPI, dcPin, resetPin, csPin machine.Pin) Device {
+	dcPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	resetPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	csPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+	return Device{
+		bus: &SPIBus{
+			wire:     bus,
+			dcPin:    dcPin,
+			resetPin: resetPin,
+			csPin:    csPin,
+		},
+	}
+}
+
+// Configure initializes the display with default configuration
+func (d *Device) Configure(cfg Config) {
+	if cfg.Width != 0 {
+		d.width = cfg.Width
+	} else {
+		d.width = 128
+	}
+	if cfg.Height != 0 {
+		d.height = cfg.Height
+	} else {
+		d.height = 64
+	}
+	if cfg.Address != 0 {
+		d.bus.setAddress(cfg.Address)
+	}
+	if cfg.VccState != 0 {
+		d.vccState = cfg.VccState
+	} else {
+		d.vccState = SWITCHCAPVCC
+	}
+	d.bufferSize = d.width * d.height / 8
+	d.buffer = make([]byte, d.bufferSize)
+
+	d.bus.configure()
+
+	// busyWaitDelay(100 * time.Nanosecond)
+	time.Sleep(100 * time.Nanosecond)
+	d.Command(DISPLAYOFF)
+	d.Command(SETDISPLAYCLOCKDIV)
+	d.Command(0x80)
+	d.Command(SETMULTIPLEX)
+	d.Command(uint8(d.height - 1))
+	d.Command(SETDISPLAYOFFSET)
+	d.Command(0x0)
+	d.Command(SETSTARTLINE | 0x0)
+	d.Command(CHARGEPUMP)
+	if d.vccState == EXTERNALVCC {
+		d.Command(0x10)
+	} else {
+		d.Command(0x14)
+	}
+	d.Command(MEMORYMODE)
+	d.Command(0x00)
+	d.Command(SEGREMAP | 0x1)
+	d.Command(COMSCANDEC)
+
+	if (d.width == 128 && d.height == 64) || (d.width == 64 && d.height == 48) { // 128x64 or 64x48
+		d.Command(SETCOMPINS)
+		d.Command(0x12)
+		d.Command(SETCONTRAST)
+		if d.vccState == EXTERNALVCC {
+			d.Command(0x9F)
+		} else {
+			d.Command(0xCF)
+		}
+	} else if d.width == 128 && d.height == 32 { // 128x32
+		d.Command(SETCOMPINS)
+		d.Command(0x02)
+		d.Command(SETCONTRAST)
+		d.Command(0x8F)
+	} else if d.width == 96 && d.height == 16 { // 96x16
+		d.Command(SETCOMPINS)
+		d.Command(0x2)
+		d.Command(SETCONTRAST)
+		if d.vccState == EXTERNALVCC {
+			d.Command(0x10)
+		} else {
+			d.Command(0xAF)
+		}
+	} else {
+		// fail silently, it might work
+		println("there's no configuration for this display's size")
+	}
+
+	d.Command(SETPRECHARGE)
+	if d.vccState == EXTERNALVCC {
+		d.Command(0x22)
+	} else {
+		d.Command(0xF1)
+	}
+	d.Command(SETVCOMDETECT)
+	d.Command(0x40)
+	d.Command(DISPLAYALLON_RESUME)
+	d.Command(NORMALDISPLAY)
+	d.Command(DEACTIVATE_SCROLL)
+	d.Command(DISPLAYON)
+}
+
+// ClearBuffer clears the image buffer
+func (d *Device) ClearBuffer() {
+	for i := int16(0); i < d.bufferSize; i++ {
+		d.buffer[i] = 0
+	}
+}
+
+// ClearDisplay clears the image buffer and clear the display
+func (d *Device) ClearDisplay() {
+	d.ClearBuffer()
+	d.Display()
+}
+
+// Display sends the whole buffer to the screen
+func (d *Device) Display() error {
+	// In the 128x64 (SPI) screen resetting to 0x0 after 128 times corrupt the buffer
+	// Since we're printing the whole buffer, avoid resetting it
+	if d.width != 128 || d.height != 64 {
+		d.Command(COLUMNADDR)
+		d.Command(0)
+		d.Command(uint8(d.width - 1))
+		d.Command(PAGEADDR)
+		d.Command(0)
+		d.Command(uint8(d.height/8) - 1)
+	}
+
+	for pg := uint8(0); pg < uint8(d.height/8); pg++ {
+		d.Command(0xB0 | (pg & 0x07)) // SET_PAGE_ADDR
+		d.Command(SETLOWCOLUMN | 2)
+		d.Command(SETHIGHCOLUMN | 0)
+		d.Tx(d.buffer[uint16(pg)*0x80:uint16(pg+1)*0x80], false)
+	}
+
+	return nil
+}
+
+// SetPixel enables or disables a pixel in the buffer
+// color.RGBA{0, 0, 0, 255} is consider transparent, anything else
+// with enable a pixel on the screen
+func (d *Device) SetPixel(x int16, y int16, c color.RGBA) {
+	if x < 0 || x >= d.width || y < 0 || y >= d.height {
+		return
+	}
+	byteIndex := x + (y/8)*d.width
+	if c.R != 0 || c.G != 0 || c.B != 0 {
+		d.buffer[byteIndex] |= 1 << uint8(y%8)
+	} else {
+		d.buffer[byteIndex] &^= 1 << uint8(y%8)
+	}
+}
+
+// GetPixel returns if the specified pixel is on (true) or off (false)
+func (d *Device) GetPixel(x int16, y int16) bool {
+	if x < 0 || x >= d.width || y < 0 || y >= d.height {
+		return false
+	}
+	byteIndex := x + (y/8)*d.width
+	return (d.buffer[byteIndex] >> uint8(y%8) & 0x1) == 1
+}
+
+// SetBuffer changes the whole buffer at once
+func (d *Device) SetBuffer(buffer []byte) error {
+	if int16(len(buffer)) != d.bufferSize {
+		//return ErrBuffer
+		return errors.New("wrong size buffer")
+	}
+	for i := int16(0); i < d.bufferSize; i++ {
+		d.buffer[i] = buffer[i]
+	}
+	return nil
+}
+
+func (d *Device) SetScroll(line int16) {
+	d.Command(SETSTARTLINE + uint8(line&0b111111))
+}
+
+// Command sends a command to the display
+func (d *Device) Command(command uint8) {
+	d.cmdbuf[0] = command
+	d.bus.tx(d.cmdbuf[:], true)
+}
+
+// setAddress sets the address to the I2C bus
+func (b *I2CBus) setAddress(address uint16) {
+	b.Address = address
+}
+
+// setAddress does nothing, but it's required to avoid reflection
+func (b *SPIBus) setAddress(address uint16) {
+	// do nothing
+	println("trying to Configure an address on a SPI device")
+}
+
+// configure does nothing, but it's required to avoid reflection
+func (b *I2CBus) configure() {}
+
+// configure configures some pins with the SPI bus
+func (b *SPIBus) configure() {
+	b.csPin.Low()
+	b.dcPin.Low()
+	b.resetPin.Low()
+
+	b.resetPin.High()
+	// busyWaitDelay(time.Millisecond)
+	time.Sleep(1 * time.Millisecond)
+	b.resetPin.Low()
+	// busyWaitDelay(10 * time.Millisecond)
+	time.Sleep(10 * time.Millisecond)
+	b.resetPin.High()
+}
+
+// Tx sends data to the display
+func (d *Device) Tx(data []byte, isCommand bool) {
+	d.bus.tx(data, isCommand)
+}
+
+// tx sends data to the display (I2CBus implementation)
+func (b *I2CBus) tx(data []byte, isCommand bool) {
+	if isCommand {
+		b.wire.WriteRegister(uint8(b.Address), 0x00, data)
+	} else {
+		b.wire.WriteRegister(uint8(b.Address), 0x40, data)
+	}
+}
+
+// tx sends data to the display (SPIBus implementation)
+func (b *SPIBus) tx(data []byte, isCommand bool) {
+	if isCommand {
+		b.csPin.High()
+		riseTimeDelay()
+		b.dcPin.Low()
+		b.csPin.Low()
+
+		b.wire.Tx(data, nil)
+		b.csPin.High()
+	} else {
+		b.csPin.High()
+		riseTimeDelay()
+		b.dcPin.High()
+		b.csPin.Low()
+
+		b.wire.Tx(data, nil)
+		b.csPin.High()
+	}
+}
+
+// Size returns the current size of the display.
+func (d *Device) Size() (w, h int16) {
+	return d.width, d.height
+}
+
+// TODO: is this really necessary? seems to work fine without this on macropad-rp2040 at least
+func riseTimeDelay() {
+	busyWaitDelay(1 * time.Microsecond)
+}
+
+func busyWaitDelay(duration time.Duration) {
+	for start := time.Now(); time.Since(start) < duration; {
+	}
+}

shifter/pybadge.go

@@ -1,5 +1,4 @@
 //go:build pybadge
-// +build pybadge
 
 package shifter
 

ssd1289/rp2040bus.go

@@ -1,5 +1,4 @@
 //go:build rp2040
-// +build rp2040
 
 package ssd1289
 

sx126x/registers.go

@@ -206,48 +206,42 @@ const (
 	SX126X_PA_RAMP_3400U = 0x07 //  7     0                3400 us
 
 	//SX126X_CMD_SET_MODULATION_PARAMS
-	SX126X_GFSK_FILTER_NONE                = 0x00 //  7     0     GFSK filter: none
-	SX126X_GFSK_FILTER_GAUSS_0_3           = 0x08 //  7     0                  Gaussian, BT = 0.3
-	SX126X_GFSK_FILTER_GAUSS_0_5           = 0x09 //  7     0                  Gaussian, BT = 0.5
-	SX126X_GFSK_FILTER_GAUSS_0_7           = 0x0A //  7     0                  Gaussian, BT = 0.7
-	SX126X_GFSK_FILTER_GAUSS_1             = 0x0B //  7     0                  Gaussian, BT = 1
-	SX126X_GFSK_RX_BW_4_8                  = 0x1F //  7     0     GFSK Rx bandwidth: 4.8 kHz
-	SX126X_GFSK_RX_BW_5_8                  = 0x17 //  7     0                        5.8 kHz
-	SX126X_GFSK_RX_BW_7_3                  = 0x0F //  7     0                        7.3 kHz
-	SX126X_GFSK_RX_BW_9_7                  = 0x1E //  7     0                        9.7 kHz
-	SX126X_GFSK_RX_BW_11_7                 = 0x16 //  7     0                        11.7 kHz
-	SX126X_GFSK_RX_BW_14_6                 = 0x0E //  7     0                        14.6 kHz
-	SX126X_GFSK_RX_BW_19_5                 = 0x1D //  7     0                        19.5 kHz
-	SX126X_GFSK_RX_BW_23_4                 = 0x15 //  7     0                        23.4 kHz
-	SX126X_GFSK_RX_BW_29_3                 = 0x0D //  7     0                        29.3 kHz
-	SX126X_GFSK_RX_BW_39_0                 = 0x1C //  7     0                        39.0 kHz
-	SX126X_GFSK_RX_BW_46_9                 = 0x14 //  7     0                        46.9 kHz
-	SX126X_GFSK_RX_BW_58_6                 = 0x0C //  7     0                        58.6 kHz
-	SX126X_GFSK_RX_BW_78_2                 = 0x1B //  7     0                        78.2 kHz
-	SX126X_GFSK_RX_BW_93_8                 = 0x13 //  7     0                        93.8 kHz
-	SX126X_GFSK_RX_BW_117_3                = 0x0B //  7     0                        117.3 kHz
-	SX126X_GFSK_RX_BW_156_2                = 0x1A //  7     0                        156.2 kHz
-	SX126X_GFSK_RX_BW_187_2                = 0x12 //  7     0                        187.2 kHz
-	SX126X_GFSK_RX_BW_234_3                = 0x0A //  7     0                        234.3 kHz
-	SX126X_GFSK_RX_BW_312_0                = 0x19 //  7     0                        312.0 kHz
-	SX126X_GFSK_RX_BW_373_6                = 0x11 //  7     0                        373.6 kHz
-	SX126X_GFSK_RX_BW_467_0                = 0x09 //  7     0                        467.0 kHz
-	SX126X_LORA_BW_7_8                     = 0x00 //  7     0     LoRa bandwidth: 7.8 kHz
-	SX126X_LORA_BW_10_4                    = 0x08 //  7     0                     10.4 kHz
-	SX126X_LORA_BW_15_6                    = 0x01 //  7     0                     15.6 kHz
-	SX126X_LORA_BW_20_8                    = 0x09 //  7     0                     20.8 kHz
-	SX126X_LORA_BW_31_25                   = 0x02 //  7     0                     31.25 kHz
-	SX126X_LORA_BW_41_7                    = 0x0A //  7     0                     41.7 kHz
-	SX126X_LORA_BW_62_5                    = 0x03 //  7     0                     62.5 kHz
-	SX126X_LORA_BW_125_0                   = 0x04 //  7     0                     125.0 kHz
-	SX126X_LORA_BW_250_0                   = 0x05 //  7     0                     250.0 kHz
-	SX126X_LORA_BW_500_0                   = 0x06 //  7     0                     500.0 kHz
-	SX126X_LORA_CR_4_5                     = 0x01 //  7     0     LoRa coding rate: 4/5
-	SX126X_LORA_CR_4_6                     = 0x02 //  7     0                       4/6
-	SX126X_LORA_CR_4_7                     = 0x03 //  7     0                       4/7
-	SX126X_LORA_CR_4_8                     = 0x04 //  7     0                       4/8
-	SX126X_LORA_LOW_DATA_RATE_OPTIMIZE_OFF = 0x00 //  7     0     LoRa low data rate optimization: disabled
-	SX126X_LORA_LOW_DATA_RATE_OPTIMIZE_ON  = 0x01 //  7     0                                      enabled
+	SX126X_GFSK_FILTER_NONE      = 0x00 //  7     0     GFSK filter: none
+	SX126X_GFSK_FILTER_GAUSS_0_3 = 0x08 //  7     0                  Gaussian, BT = 0.3
+	SX126X_GFSK_FILTER_GAUSS_0_5 = 0x09 //  7     0                  Gaussian, BT = 0.5
+	SX126X_GFSK_FILTER_GAUSS_0_7 = 0x0A //  7     0                  Gaussian, BT = 0.7
+	SX126X_GFSK_FILTER_GAUSS_1   = 0x0B //  7     0                  Gaussian, BT = 1
+	SX126X_GFSK_RX_BW_4_8        = 0x1F //  7     0     GFSK Rx bandwidth: 4.8 kHz
+	SX126X_GFSK_RX_BW_5_8        = 0x17 //  7     0                        5.8 kHz
+	SX126X_GFSK_RX_BW_7_3        = 0x0F //  7     0                        7.3 kHz
+	SX126X_GFSK_RX_BW_9_7        = 0x1E //  7     0                        9.7 kHz
+	SX126X_GFSK_RX_BW_11_7       = 0x16 //  7     0                        11.7 kHz
+	SX126X_GFSK_RX_BW_14_6       = 0x0E //  7     0                        14.6 kHz
+	SX126X_GFSK_RX_BW_19_5       = 0x1D //  7     0                        19.5 kHz
+	SX126X_GFSK_RX_BW_23_4       = 0x15 //  7     0                        23.4 kHz
+	SX126X_GFSK_RX_BW_29_3       = 0x0D //  7     0                        29.3 kHz
+	SX126X_GFSK_RX_BW_39_0       = 0x1C //  7     0                        39.0 kHz
+	SX126X_GFSK_RX_BW_46_9       = 0x14 //  7     0                        46.9 kHz
+	SX126X_GFSK_RX_BW_58_6       = 0x0C //  7     0                        58.6 kHz
+	SX126X_GFSK_RX_BW_78_2       = 0x1B //  7     0                        78.2 kHz
+	SX126X_GFSK_RX_BW_93_8       = 0x13 //  7     0                        93.8 kHz
+	SX126X_GFSK_RX_BW_117_3      = 0x0B //  7     0                        117.3 kHz
+	SX126X_GFSK_RX_BW_156_2      = 0x1A //  7     0                        156.2 kHz
+	SX126X_GFSK_RX_BW_187_2      = 0x12 //  7     0                        187.2 kHz
+	SX126X_GFSK_RX_BW_234_3      = 0x0A //  7     0                        234.3 kHz
+	SX126X_GFSK_RX_BW_312_0      = 0x19 //  7     0                        312.0 kHz
+	SX126X_GFSK_RX_BW_373_6      = 0x11 //  7     0                        373.6 kHz
+	SX126X_GFSK_RX_BW_467_0      = 0x09 //  7     0                        467.0 kHz
+	SX126X_LORA_BW_7_8           = 0x00 //  7     0     LoRa bandwidth: 7.8 kHz
+	SX126X_LORA_BW_10_4          = 0x08 //  7     0                     10.4 kHz
+	SX126X_LORA_BW_15_6          = 0x01 //  7     0                     15.6 kHz
+	SX126X_LORA_BW_20_8          = 0x09 //  7     0                     20.8 kHz
+	SX126X_LORA_BW_31_25         = 0x02 //  7     0                     31.25 kHz
+	SX126X_LORA_BW_41_7          = 0x0A //  7     0                     41.7 kHz
+	SX126X_LORA_BW_62_5          = 0x03 //  7     0                     62.5 kHz
+	SX126X_LORA_BW_125_0         = 0x04 //  7     0                     125.0 kHz
+	SX126X_LORA_BW_250_0         = 0x05 //  7     0                     250.0 kHz
+	SX126X_LORA_BW_500_0         = 0x06 //  7     0                     500.0 kHz
 
 	//SX126X_CMD_SET_PACKET_PARAMS
 	SX126X_GFSK_PREAMBLE_DETECT_OFF         = 0x00 //  7     0     GFSK minimum preamble length before reception starts: detector disabled
@@ -267,12 +261,6 @@ const (
 	SX126X_GFSK_CRC_2_BYTE_INV              = 0x06 //  7     0                      2 byte, inverted
 	SX126X_GFSK_WHITENING_OFF               = 0x00 //  7     0     GFSK data whitening: disabled
 	SX126X_GFSK_WHITENING_ON                = 0x01 //  7     0                          enabled
-	SX126X_LORA_HEADER_EXPLICIT             = 0x00 //  7     0     LoRa header mode: explicit
-	SX126X_LORA_HEADER_IMPLICIT             = 0x01 //  7     0                       implicit
-	SX126X_LORA_CRC_OFF                     = 0x00 //  7     0     LoRa CRC mode: disabled
-	SX126X_LORA_CRC_ON                      = 0x01 //  7     0                    enabled
-	SX126X_LORA_IQ_STANDARD                 = 0x00 //  7     0     LoRa IQ setup: standard
-	SX126X_LORA_IQ_INVERTED                 = 0x01 //  7     0                    inverted
 
 	//SX126X_CMD_SET_CAD_PARAMS
 	SX126X_CAD_ON_1_SYMB  = 0x00 //  7     0     number of symbols used for CAD: 1
@@ -323,13 +311,4 @@ const (
 
 	SX126X_LORA_MAC_PUBLIC_SYNCWORD  = 0x3444
 	SX126X_LORA_MAC_PRIVATE_SYNCWORD = 0x1424
-
-	SX126X_LORA_SF5  = 0x05
-	SX126X_LORA_SF6  = 0x06
-	SX126X_LORA_SF7  = 0x07
-	SX126X_LORA_SF8  = 0x08
-	SX126X_LORA_SF9  = 0x09
-	SX126X_LORA_SF10 = 0x0A
-	SX126X_LORA_SF11 = 0x0B
-	SX126X_LORA_SF12 = 0x0C
 )

sx126x/spi_stm32wl.go

@@ -1,5 +1,4 @@
 //go:build stm32wlx
-// +build stm32wlx
 
 package sx126x
 
@@ -8,11 +7,12 @@ import (
 	"errors"
 	"machine"
 	"tinygo.org/x/drivers"
+	"tinygo.org/x/drivers/lora"
 )
 
 // New creates a new SX126x connection.
 func New(spi drivers.SPI) *Device {
-	c := make(chan RadioEvent, 10)
+	c := make(chan lora.RadioEvent, 10)
 	d := Device{
 		spi:            spi,
 		radioEventChan: c,

sx126x/sx126x.go

@@ -7,7 +7,10 @@ import (
 	"errors"
 	"time"
 
+	"machine"
+
 	"tinygo.org/x/drivers"
+	"tinygo.org/x/drivers/lora"
 )
 
 // SX126X radio transceiver RF_IN and RF_OUT may be connected
@@ -30,22 +33,6 @@ const (
 	RFSWITCH_TX_HP = iota
 )
 
-const (
-	RadioEventRxDone    = iota
-	RadioEventTxDone    = iota
-	RadioEventTimeout   = iota
-	RadioEventWatchdog  = iota
-	RadioEventCrcError  = iota
-	RadioEventUnhandled = iota
-)
-
-// RadioEvent are used for communicating in the radio Event Channel
-type RadioEvent struct {
-	EventType int
-	IRQStatus uint16
-	EventData []byte
-}
-
 const (
 	PERIOD_PER_SEC  = (uint32)(1000000 / 15.625) // SX1261 DS 13.1.4
 	SPI_BUFFER_SIZE = 256
@@ -53,38 +40,20 @@ const (
 
 // Device wraps an SPI connection to a SX127x device.
 type Device struct {
-	spi            drivers.SPI     // SPI bus for module communication
-	radioEventChan chan RadioEvent // Channel for Receiving events
-	loraConf       LoraConfig      // Current Lora configuration
-	rfswitch       RFSwitch        // RF Switch, if any
-	deepSleep      bool            // Internal Sleep state
-	deviceType     int             // sx1261,sx1262,sx1268 (defaults sx1261)
+	spi            drivers.SPI          // SPI bus for module communication
+	rstPin, csPin  machine.Pin          // GPIOs for reset and chip select
+	radioEventChan chan lora.RadioEvent // Channel for Receiving events
+	loraConf       lora.Config          // Current Lora configuration
+	rfswitch       RFSwitch             // RF Switch, if any
+	deepSleep      bool                 // Internal Sleep state
+	deviceType     int                  // sx1261,sx1262,sx1268 (defaults sx1261)
 	spiBuffer      [SPI_BUFFER_SIZE]uint8
 }
 
-// Config holds the LoRa configuration parameters
-type LoraConfig struct {
-	Freq           uint32 // Frequency
-	Cr             uint8  // Coding Rate
-	Sf             uint8  // Spread Factor
-	Bw             uint8  // Bandwidth
-	Ldr            uint8  // Low Data Rate
-	Preamble       uint16 // PreambleLength
-	SyncWord       uint16 // Sync Word
-	HeaderType     uint8  // Header : Implicit/explicit
-	Crc            uint8  // CRC : Yes/No
-	Iq             uint8  // iq : Standard/inverted
-	LoraTxPowerDBm int8   // Tx power in Dbm
-}
-
 const (
 	SX126X_RTC_FREQ_IN_HZ uint32 = 64000
 )
 
-var (
-	errUndefinedLoraConf = errors.New("Undefined Lora configuration")
-)
-
 // --------------------------------------------------
 //  Helper functions
 // --------------------------------------------------
@@ -100,14 +69,8 @@ func timeoutMsToRtcSteps(timeoutMs uint32) uint32 {
 //	Channel and events
 //
 // --------------------------------------------------
-// NewRadioEvent() returns a new RadioEvent that can be used in the RadioChannel
-func NewRadioEvent(eType int, irqStatus uint16, eData []byte) RadioEvent {
-	r := RadioEvent{EventType: eType, IRQStatus: irqStatus, EventData: eData}
-	return r
-}
-
 // Get the RadioEvent channel of the device
-func (d *Device) GetRadioEventChan() chan RadioEvent {
+func (d *Device) GetRadioEventChan() chan lora.RadioEvent {
 	return d.radioEventChan
 }
 
@@ -126,6 +89,13 @@ func (d *Device) SetRfSwitch(rfswitch RFSwitch) {
 // Operational modes functions
 // --------------------------------------------------
 
+func (d *Device) Reset() {
+	d.rstPin.Low()
+	time.Sleep(100 * time.Millisecond)
+	d.rstPin.High()
+	time.Sleep(100 * time.Millisecond)
+}
+
 // DetectDevice() tries to detect the radio module by changing SyncWord value
 func (d *Device) DetectDevice() bool {
 	bak := d.GetSyncWord()
@@ -163,7 +133,7 @@ func (d *Device) SetTxContinuousWave() {
 }
 
 // SetTxContinuousPreamble set device in test mode to constantly modulate LoRa preamble symbols.
-// Take care to initialize all Lora settings like it's done in LoraTx before calling this function
+// Take care to initialize all Lora settings like it's done in Tx before calling this function
 // If you don't init properly all the settings, it'll fail
 func (d *Device) SetTxContinuousPreamble() {
 	if d.rfswitch != nil {
@@ -387,11 +357,11 @@ func (d *Device) SetPacketType(packetType uint8) {
 }
 
 // SetSyncWord defines the Sync Word to yse
-func (d *Device) SetSyncWord(syncword uint16) {
+func (d *Device) SetSyncWord(sw uint16) {
 	var p [2]uint8
-	d.loraConf.SyncWord = syncword
-	p[0] = uint8((syncword >> 8) & 0xFF)
-	p[1] = uint8((syncword >> 0) & 0xFF)
+	d.loraConf.SyncWord = sw
+	p[0] = uint8((d.loraConf.SyncWord >> 8) & 0xFF)
+	p[1] = uint8((d.loraConf.SyncWord >> 0) & 0xFF)
 	d.WriteRegister(SX126X_REG_LORA_SYNC_WORD_MSB, p[:])
 }
 
@@ -402,8 +372,8 @@ func (d *Device) GetSyncWord() uint16 {
 	return r
 }
 
-// SetLoraPublicNetwork sets Sync Word to 0x3444 (Public) or 0x1424 (Private)
-func (d *Device) SetLoraPublicNetwork(enable bool) {
+// SetPublicNetwork sets Sync Word to 0x3444 (Public) or 0x1424 (Private)
+func (d *Device) SetPublicNetwork(enable bool) {
 	if enable {
 		d.SetSyncWord(SX126X_LORA_MAC_PUBLIC_SYNCWORD)
 	} else {
@@ -537,47 +507,47 @@ func (d *Device) ExecGetCommand(cmd uint8, size uint8) []uint8 {
 // Configuration
 //
 
-// SetLoraFrequency() Sets current Lora Frequency
+// SetFrequency() Sets current Lora Frequency
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraFrequency(freq uint32) {
+func (d *Device) SetFrequency(freq uint32) {
 	d.loraConf.Freq = d.loraConf.Freq
 }
 
-// SetLoraIqMode() defines the current IQ Mode (Standard/Inverted)
+// SetIqMode() defines the current IQ Mode (Standard/Inverted)
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraIqMode(mode uint8) {
+func (d *Device) SetIqMode(mode uint8) {
 	if mode == 0 {
-		d.loraConf.Iq = SX126X_LORA_IQ_STANDARD
+		d.loraConf.Iq = lora.IQStandard
 	} else {
-		d.loraConf.Iq = SX126X_LORA_IQ_INVERTED
+		d.loraConf.Iq = lora.IQInverted
 	}
 }
 
-// SetLoraCodingRate() sets current Lora Coding Rate
+// SetCodingRate() sets current Lora Coding Rate
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraCodingRate(cr uint8) {
+func (d *Device) SetCodingRate(cr uint8) {
 	d.loraConf.Cr = cr
 }
 
-// SetLoraBandwidth() sets current Lora Bandwidth
+// SetBandwidth() sets current Lora Bandwidth
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraBandwidth(bw uint8) {
+func (d *Device) SetBandwidth(bw uint8) {
 	d.loraConf.Cr = bw
 }
 
-// SetLoraCrc() sets current CRC mode (ON/OFF)
+// SetCrc() sets current CRC mode (ON/OFF)
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraCrc(enable bool) {
+func (d *Device) SetCrc(enable bool) {
 	if enable {
-		d.loraConf.Crc = SX126X_LORA_CRC_ON
+		d.loraConf.Crc = lora.CRCOn
 	} else {
-		d.loraConf.Crc = SX126X_LORA_CRC_OFF
+		d.loraConf.Crc = lora.CRCOn
 	}
 }
 
-// SetLoraSpreadingFactor setc surrent Lora Spreading Factor
+// SetSpreadingFactor setc surrent Lora Spreading Factor
 // NB: Change will be applied at next RX / TX
-func (d *Device) SetLoraSpreadingFactor(sf uint8) {
+func (d *Device) SetSpreadingFactor(sf uint8) {
 	d.loraConf.Sf = sf
 }
 
@@ -587,9 +557,10 @@ func (d *Device) SetLoraSpreadingFactor(sf uint8) {
 //
 
 // LoraConfig() defines Lora configuration for next Lora operations
-func (d *Device) LoraConfig(cnf LoraConfig) {
+func (d *Device) LoraConfig(cnf lora.Config) {
 	// Save given configuration
 	d.loraConf = cnf
+	d.loraConf.SyncWord = syncword(int(cnf.SyncWord))
 	// Switch to standby prior to configuration changes
 	d.SetStandby()
 	// Clear errors, disable radio interrupts for the moment
@@ -599,24 +570,25 @@ func (d *Device) LoraConfig(cnf LoraConfig) {
 	// Define radio operation mode
 	d.SetPacketType(SX126X_PACKET_TYPE_LORA)
 	d.SetRfFrequency(d.loraConf.Freq)
-	d.SetModulationParams(d.loraConf.Sf, d.loraConf.Bw, d.loraConf.Cr, d.loraConf.Ldr)
+	d.SetModulationParams(d.loraConf.Sf, bandwidth(d.loraConf.Bw), d.loraConf.Cr, d.loraConf.Ldr)
 	d.SetTxParams(d.loraConf.LoraTxPowerDBm, SX126X_PA_RAMP_200U)
 	d.SetSyncWord(d.loraConf.SyncWord)
 	d.SetBufferBaseAddress(0, 0)
 }
 
-// LoraTx sends a lora packet, (with timeout)
-func (d *Device) LoraTx(pkt []uint8, timeoutMs uint32) error {
-
+// Tx sends a lora packet, (with timeout)
+func (d *Device) Tx(pkt []uint8, timeoutMs uint32) error {
 	if d.loraConf.Freq == 0 {
-		return errUndefinedLoraConf
+		return lora.ErrUndefinedLoraConf
 	}
+
 	if d.rfswitch != nil {
 		err := d.rfswitch.SetRfSwitchMode(RFSWITCH_TX_HP)
 		if err != nil {
 			return err
 		}
 	}
+
 	d.ClearIrqStatus(SX126X_IRQ_ALL)
 	irqVal := uint16(SX126X_IRQ_TX_DONE | SX126X_IRQ_TIMEOUT | SX126X_IRQ_CRC_ERR)
 	d.SetStandby()
@@ -625,45 +597,46 @@ func (d *Device) LoraTx(pkt []uint8, timeoutMs uint32) error {
 	d.SetTxParams(d.loraConf.LoraTxPowerDBm, SX126X_PA_RAMP_200U)
 	d.SetBufferBaseAddress(0, 0)
 	d.WriteBuffer(pkt)
-	d.SetModulationParams(d.loraConf.Sf, d.loraConf.Bw, d.loraConf.Cr, d.loraConf.Ldr)
+	d.SetModulationParams(d.loraConf.Sf, bandwidth(d.loraConf.Bw), d.loraConf.Cr, d.loraConf.Ldr)
 	d.SetPacketParam(d.loraConf.Preamble, d.loraConf.HeaderType, d.loraConf.Crc, uint8(len(pkt)), d.loraConf.Iq)
 	d.SetDioIrqParams(irqVal, irqVal, SX126X_IRQ_NONE, SX126X_IRQ_NONE)
 	d.SetSyncWord(d.loraConf.SyncWord)
 	d.SetTx(timeoutMsToRtcSteps(timeoutMs))
 
 	msg := <-d.GetRadioEventChan()
-	if msg.EventType != RadioEventTxDone {
+	if msg.EventType != lora.RadioEventTxDone {
 		return errors.New("Unexpected Radio Event while TX")
 	}
 	return nil
 }
 
 // LoraRx tries to receive a Lora packet (with timeout in milliseconds)
-func (d *Device) LoraRx(timeoutMs uint32) ([]uint8, error) {
-
+func (d *Device) Rx(timeoutMs uint32) ([]uint8, error) {
 	if d.loraConf.Freq == 0 {
-		return nil, errUndefinedLoraConf
+		return nil, lora.ErrUndefinedLoraConf
 	}
+
 	if d.rfswitch != nil {
 		err := d.rfswitch.SetRfSwitchMode(RFSWITCH_RX)
 		if err != nil {
 			return nil, err
 		}
 	}
+
 	d.ClearIrqStatus(SX126X_IRQ_ALL)
 	irqVal := uint16(SX126X_IRQ_RX_DONE | SX126X_IRQ_TIMEOUT | SX126X_IRQ_CRC_ERR)
 	d.SetStandby()
 	d.SetBufferBaseAddress(0, 0)
-	d.SetModulationParams(d.loraConf.Sf, d.loraConf.Bw, d.loraConf.Cr, d.loraConf.Ldr)
+	d.SetModulationParams(d.loraConf.Sf, bandwidth(d.loraConf.Bw), d.loraConf.Cr, d.loraConf.Ldr)
 	d.SetPacketParam(d.loraConf.Preamble, d.loraConf.HeaderType, d.loraConf.Crc, 0xFF, d.loraConf.Iq)
 	d.SetDioIrqParams(irqVal, irqVal, SX126X_IRQ_NONE, SX126X_IRQ_NONE)
 	d.SetRx(timeoutMsToRtcSteps(timeoutMs))
 
 	msg := <-d.GetRadioEventChan()
 
-	if msg.EventType == RadioEventTimeout {
+	if msg.EventType == lora.RadioEventTimeout {
 		return nil, nil
-	} else if msg.EventType != RadioEventRxDone {
+	} else if msg.EventType != lora.RadioEventRxDone {
 		return nil, errors.New("Unexpected Radio Event while RX")
 	}
 
@@ -683,19 +656,53 @@ func (d *Device) HandleInterrupt() {
 	rChan := d.GetRadioEventChan()
 
 	if (st & SX126X_IRQ_RX_DONE) > 0 {
-		rChan <- NewRadioEvent(RadioEventRxDone, st, nil)
+		rChan <- lora.NewRadioEvent(lora.RadioEventRxDone, st, nil)
 	}
 
 	if (st & SX126X_IRQ_TX_DONE) > 0 {
-		rChan <- NewRadioEvent(RadioEventTxDone, st, nil)
+		rChan <- lora.NewRadioEvent(lora.RadioEventTxDone, st, nil)
 	}
 
 	if (st & SX126X_IRQ_TIMEOUT) > 0 {
-		rChan <- NewRadioEvent(RadioEventTimeout, st, nil)
+		rChan <- lora.NewRadioEvent(lora.RadioEventTimeout, st, nil)
 	}
 
 	if (st & SX126X_IRQ_CRC_ERR) > 0 {
-		rChan <- NewRadioEvent(RadioEventCrcError, st, nil)
+		rChan <- lora.NewRadioEvent(lora.RadioEventCrcError, st, nil)
 	}
 
 }
+
+func bandwidth(bw uint8) uint8 {
+	switch bw {
+	case lora.Bandwidth_7_8:
+		return SX126X_LORA_BW_7_8
+	case lora.Bandwidth_10_4:
+		return SX126X_LORA_BW_10_4
+	case lora.Bandwidth_15_6:
+		return SX126X_LORA_BW_15_6
+	case lora.Bandwidth_20_8:
+		return SX126X_LORA_BW_20_8
+	case lora.Bandwidth_31_25:
+		return SX126X_LORA_BW_31_25
+	case lora.Bandwidth_41_7:
+		return SX126X_LORA_BW_41_7
+	case lora.Bandwidth_62_5:
+		return SX126X_LORA_BW_62_5
+	case lora.Bandwidth_125_0:
+		return SX126X_LORA_BW_125_0
+	case lora.Bandwidth_250_0:
+		return SX126X_LORA_BW_250_0
+	case lora.Bandwidth_500_0:
+		return SX126X_LORA_BW_500_0
+	default:
+		return 0
+	}
+}
+
+func syncword(sw int) uint16 {
+	if sw == lora.SyncPublic {
+		return SX126X_LORA_MAC_PUBLIC_SYNCWORD
+	}
+	return SX126X_LORA_MAC_PRIVATE_SYNCWORD
+}