Which package to use for using GPIOs on Raspberry Pi?

Question

How can I read the temperature sensor values on GPIO of a Raspberry Pi using the go language?

Please, anyone help me out.

Thanks in advance.

Answer 1

Check out Dave Cheney's package:

• https://github.com/davecheney/gpio

There's a classical blink example there.

Answer 2

http://embd.kidoman.io/

this is a slightly higher level abstraction than dave cheney's gpio library.

In addition to a gpio api, there is support for many common sensors

not sure what your sensor is, but e.g. here is an example for the bmp180 barometric sensor

Answer 3

I have created an extremely simple package for interacting with the GPIO pins on a Raspberry Pi:

https://github.com/nathan-osman/go-rpigpio

A simple program that makes pin 2 flash ten times would look something like this:

package main

import (
    "github.com/nathan-osman/go-rpigpio"
    "time"
)

func main() {
    p, err := rpi.OpenPin(2, rpi.OUT)
    if err != nil {
        panic(err)
    }
    defer p.Close()

    for i := 0; i < 10; i++ {
        p.Write(rpi.HIGH)
        time.Sleep(300 * time.Millisecond)
        p.Write(rpi.LOW)
        time.Sleep(100 * time.Millisecond)
    }
}

More documentation can be found here.

Answer 4

There are quite a few Go modules to access the GPIO pins on a Raspberry Pi. However, not all of them are regularly maintained. The table below summarizes some of the available Go modules as of August 11, 2023. The table is sorted by last commit date.

Module	Stars	Last Commit	License	Notes
hybridgroup/gobot	8.4k	Jul 2023	Apache2	Framework for robotics/IoT
warthog618/gpiod	321	Jul 2023	MIT
periph/conn	48	Apr 2023	Apache-2.0	Part of periph library
warthog618/gpio	114	Dec 2022	MIT	Relies on sysfs which is deprecated
stianeikeland/go-rpio	2k	Dec 2021	MIT
mrmorphic/hwio	322	May 2018	BSD-3
kidoman/embd	1.3k	May 2017	MIT
nathan-osman/go-rpigpio	64	Jun 2016	MIT
luismesas/goPi	74	Apr 2014	MIT

Reading a temperature sensor depends not just on the chosen Go module but also on the temperature sensor being used. For instance, you could use the AM2302 (wired DHT22) temperature-humidity sensor from Adafruit in which case you could use the go-dht module, which provides DHT22, AM2302, and DHT11 interfaces using the periph driver.

Answer 5

Another is goPi - also has support for piface

• https://github.com/luismesas/goPi

And the blink examples

• standard io
• piface