embd/samples/servoblaster.go

52 lines
720 B
Go

// +build ignore
package main
import (
"os"
"os/signal"
"time"
"github.com/kidoman/embd/controller/servoblaster"
"github.com/kidoman/embd/motion/servo"
)
func main() {
sb := servoblaster.New()
defer sb.Close()
pwm := sb.Channel(0)
servo := servo.New(pwm)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, os.Kill)
turnTimer := time.Tick(500 * time.Millisecond)
left := true
servo.SetAngle(90)
defer func() {
servo.SetAngle(90)
}()
for {
select {
case <-turnTimer:
left = !left
var err error
switch left {
case true:
err = servo.SetAngle(45)
case false:
err = servo.SetAngle(135)
}
if err != nil {
panic(err)
}
case <-c:
return
}
}
}