package main
import (
"fmt"
"github.com/gonutz/gopio"
"os"
)
var (
// Use mcu pin 22, corresponds to GPIO3 on the pi
pin = gopio.Pin(22)
)
func main() {
// Open and map memory to access gpio, check for errors
if err := gopio.Open(); err != nil {
fmt.Println(err)
os.Exit(1)
}
// Unmap gpio memory when done
defer gopio.Close()
// Pull up and read value
pin.PullUp()
fmt.Printf("PullUp: %d\n", pin.Read())
// Pull down and read value
pin.PullDown()
fmt.Printf("PullDown: %d\n", pin.Read())
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/gonutz/gopio"
"os"
"time"
)
var (
// Use mcu pin 10, corresponds to physical pin 19 on the pi
pin = gopio.Pin(10)
)
func main() {
// Open and map memory to access gpio, check for errors
if err := gopio.Open(); err != nil {
fmt.Println(err)
os.Exit(1)
}
// Unmap gpio memory when done
defer gopio.Close()
// Set pin to output mode
pin.Output()