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embd/samples/keypad/matrix4x3.go
2014-03-03 00:55:20 +05:30

38 lines
577 B
Go

// +build ignore
package main
import (
"fmt"
"time"
"github.com/kidoman/embd"
"github.com/kidoman/embd/interface/keypad/matrix4x3"
)
func main() {
rowPins := []int{4, 17, 27, 22}
colPins := []int{23, 24, 25}
if err := embd.InitGPIO(); err != nil {
panic(err)
}
defer embd.CloseGPIO()
keypad, err := matrix4x3.New(rowPins, colPins)
if err != nil {
panic(err)
}
for {
key, err := keypad.PressedKey()
if err != nil {
panic(err)
}
if key != matrix4x3.KNone {
fmt.Printf("Key Pressed = %v\n", key)
}
time.Sleep(500 * time.Millisecond)
}
}