package main import ( "log" "os" "os/signal" "time" "github.com/kid0m4n/go-rpi/controller/pca9685" "github.com/kid0m4n/go-rpi/i2c" "github.com/kid0m4n/go-rpi/motion/servo" ) func main() { bus, err := i2c.NewBus(1) if err != nil { log.Panic(err) } pwm := pca9685.New(bus, 0x41, 50) pwm.Debug = true defer pwm.Close() servo := servo.New(pwm, 0) servo.Debug = true 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 switch left { case true: servo.SetAngle(70) case false: servo.SetAngle(110) } case <-c: return } } }