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embd/samples/us020.go
2014-03-01 20:19:44 +05:30

39 lines
577 B
Go

package main
import (
"log"
"time"
"github.com/kidoman/embd/gpio"
"github.com/kidoman/embd/sensor/us020"
)
func main() {
if err := gpio.Open(); err != nil {
panic(err)
}
defer gpio.Close()
echoPin, err := gpio.NewDigitalPin(10)
if err != nil {
panic(err)
}
triggerPin, err := gpio.NewDigitalPin(9)
if err != nil {
panic(err)
}
rf := us020.New(echoPin, triggerPin, nil)
defer rf.Close()
for {
distance, err := rf.Distance()
if err != nil {
log.Panic(err)
}
log.Printf("Distance is %v", distance)
time.Sleep(500 * time.Millisecond)
}
}