WiringPi-Go
Golang wrapped version of Gordon's Arduino-like WiringPi for the Raspberry Pi
Installation
install WiringPi first
cd WiringPi\wiringPi
sudo make install
go get github.com/hugozhu/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/hugozhu/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/hugozhu/rpi
go run src/lcd.go
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