Ayke van Laethem 30f540c29f touch: add capacitive touch sensing on normal GPIO pins
Tested on the following chips/boards:

  * RP2040 (Raspberry Pi Pico)
  * ATSAMD21 (Adafruit PyBadge)
  * NRF52840 (PCA10056 developer board)
  * ESP8266 (NodeMCU)
  * ATmega328p (Arduino Uno)
  * ESP32C3 (WaveShare ESP-C3-32S-Kit)
  * FE310 (SiFive HiFive1 rev B)

The sensitivity threshold in the example may need to be adjusted per
board though, the default value of 100 typically recognizes when a cable
is being touched but the RP2040 for example is capable of doing much
more precise measurements if the power supply is sufficiently
noise-free.
2024-10-25 06:28:03 +01:00
2023-07-02 18:30:11 +02:00
2021-05-12 09:21:52 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2021-05-30 22:11:27 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2022-12-19 22:01:39 +01:00
2022-12-21 17:47:14 -05:00
2024-10-23 12:32:32 +01:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2024-04-21 12:00:03 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2024-10-24 07:45:33 +02:00
2023-07-02 18:30:11 +02:00
2021-03-26 18:10:39 +01:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2023-07-02 18:30:11 +02:00
2023-05-20 15:49:13 +02:00
2023-08-27 11:38:33 +02:00
2024-04-01 07:40:46 +02:00
2024-10-23 12:32:32 +01:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2023-09-20 19:14:17 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-10-25 09:57:40 +02:00
2022-09-25 13:23:16 +02:00
2023-09-19 08:31:43 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2023-07-02 18:30:11 +02:00
2022-09-25 13:23:16 +02:00
2023-05-21 00:32:05 +02:00
2022-09-25 13:23:16 +02:00
2022-09-25 13:23:16 +02:00
2021-12-14 09:14:10 +09:00
2021-03-28 12:23:16 +02:00
2024-06-18 11:38:02 +02:00
2022-09-25 13:23:16 +02:00
2023-12-06 20:09:39 +01:00
2023-07-02 18:30:11 +02:00
2024-02-26 19:55:23 +01:00
2021-04-02 17:31:28 +02:00
2024-06-18 11:38:02 +02:00

TinyGo Drivers

PkgGoDev Build

This package provides a collection of over 100 different hardware drivers for devices such as sensors, displays, wireless adaptors, and actuators, that can be used together with TinyGo.

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

Installing

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:

package main

import (
    "time"

    "machine"

    "tinygo.org/x/drivers/bmp180"
)

func main() {
    machine.I2C0.Configure(machine.I2CConfig{})
    sensor := bmp180.New(machine.I2C0)
    sensor.Configure()

    connected := sensor.Connected()
    if !connected {
        println("BMP180 not detected")
        return
    }
    println("BMP180 detected")

    for {
        temp, _ := sensor.ReadTemperature()
        println("Temperature:", float32(temp)/1000, "°C")

        pressure, _ := sensor.ReadPressure()
        println("Pressure", float32(pressure)/100000, "hPa")

        time.Sleep(2 * time.Second)
    }
}

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:

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.

For example, to change the definitions for use on a Raspberry Pi Pico using typical wiring, you might need to do this:

var (
        spi   = machine.SPI0
        csPin = machine.GP17
)

Contributing

Your contributions are welcome!

Please take a look at our CONTRIBUTING.md document for details.

License

This project is licensed under the BSD 3-clause license, just like the Go project itself.

S
Description
TinyGo drivers for sensors, displays, wireless adaptors, and other devices that use I2C, SPI, GPIO, ADC, and UART interfaces.
Readme BSD-3-Clause 26 MiB
Latest
2026-04-21 08:44:44 +00:00
Languages
Go 99.1%
Shell 0.7%