goland操作GPIO

源码

/*

A blinker example using go-rpio library.
Requires administrator rights to run

Toggles a LED on physical pin 19 (mcu pin 10)
Connect a LED with resistor from pin 19 to ground.

*/

package main

import (
	"fmt"
	"github.com/stianeikeland/go-rpio/v4"
	"os"
	"time"
)

var (
	// Use mcu pin 10, corresponds to physical pin 19 on the pi
	pin = rpio.Pin(21)
)

func main() {
	// Open and map memory to access gpio, check for errors
	if err := rpio.Open(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	// Unmap gpio memory when done
	defer rpio.Close()

	// Set pin to output mode
	pin.Output()

	// Toggle pin 20 times
	for x := 0; x < 20; x++ {
		pin.Toggle()
		time.Sleep(time.Second / 5)
	}
}

树莓派操作

  415  mkdir my
  416  mv gpio.go my
  417  cd my/
  418   go mod init hello
  419  go mod tidy
  420  go build gpio.go 
  421  ./gpio 

效果:GND-GND LED+连接GPIO21 也就是最边上的一对儿

一闪一闪