WiringPi-Go

This library has been forked for experimental use / research by Alex Ellis. I'm looking to use this to port the Pimoroni Blinkt! library to Golang. If you'd like to help or are in a similar position (looking for a GPIO library for Golang) get in touch.

Golang wrapped version of Gordon's Arduino-like WiringPi for the Raspberry Pi

Install Go

If you don't have Go on the Pi, download it from: https://golang.org/dl/ and pick the armv6l edition.

sudo tar -xvf go1.7.4.linux-armv6l.tar.gz -C /usr/local/
export GOPATH=$HOME/go

Create your first project under: $HOME/go/src/github.com/youruser/yourrepo/

Installation

Install WiringPi

# sudo apt-get install -qy wiringpi

Then get the library:

go get github.com/alexellis/rpi

GPIO numbering

wiringPi	Name	GPIO.BOARD	GPIO.BCM
0	GPIO 0	11	17
1	GPIO 1	12	18
2	GPIO 2	13	21
3	GPIO 3	15	22
4	GPIO 4	16	23
5	GPIO 5	18	24
6	GPIO 6	22	25
7	GPIO 7	7	4
8	SDA	3	0
9	SCL	5	1
10	CE0	24	8
11	CE1	26	7
12	MOSI	19	10
13	MOSO	21	9
14	SCLK	23	11
15	TXD	8	14
16	RXD	10	15

more to read at: http://hugozhu.myalert.info/2013/03/22/19-raspberry-pi-gpio-port-naming.html

Sample codes

lcd.go

package main

import (
    . "github.com/alexellis/rpi"
)

func main() {
    WiringPiSetup()

    //use default pin naming
    PinMode(PIN_GPIO_4, OUTPUT)
    DigitalWrite(PIN_GPIO_4, LOW)
    Delay(400)
    DigitalWrite(PIN_GPIO_4, HIGH)

    //use raspberry pi board pin numbering, similiar to RPi.GPIO.setmode(RPi.GPIO.BOARD)
    Delay(400)
    DigitalWrite(BoardToPin(16), LOW)
    Delay(400)
    DigitalWrite(BoardToPin(16), HIGH)

    //use raspberry pi bcm gpio numbering, similiar to RPi.GPIO.setmode(RPi.GPIO.BCM)
    Delay(400)
    DigitalWrite(GpioToPin(23), LOW)
    Delay(400)
    DigitalWrite(GpioToPin(23), HIGH)
}

Run

export GOPATH=`pwd`
go install github.com/alexellis/rpi