// +build ignore package main import ( "flag" "time" "github.com/kidoman/embd" _ "github.com/kidoman/embd/host/all" ) func main() { flag.Parse() h, _, err := embd.DetectHost() if err != nil { return } var pinNo interface{} switch h { case embd.HostBBB: pinNo = "P9_31" case embd.HostRPi: pinNo = 10 default: panic("host not supported (yet :P)") } if err := embd.InitGPIO(); err != nil { panic(err) } defer embd.CloseGPIO() led, err := embd.NewDigitalPin(pinNo) if err != nil { panic(err) } defer led.Close() if err := led.SetDirection(embd.Out); err != nil { panic(err) } if err := led.Write(embd.High); err != nil { panic(err) } time.Sleep(1 * time.Second) if err := led.SetDirection(embd.In); err != nil { panic(err) } }