//go:build example // +build example // // Do not build by default. /* To run this example, pass the device ID as first param, and the access token as the second param: go run examples/particle_led_brightness.go mydevice myaccesstoken */ package main import ( "fmt" "os" "time" "gobot.io/x/gobot/v2" "gobot.io/x/gobot/v2/drivers/gpio" "gobot.io/x/gobot/v2/platforms/particle" ) func main() { core := particle.NewAdaptor(os.Args[1], os.Args[2]) led := gpio.NewLedDriver(core, "A1") work := func() { brightness := uint8(0) fadeAmount := uint8(25) gobot.Every(500*time.Millisecond, func() { if err := led.Brightness(brightness); err != nil { fmt.Println(err) } brightness = brightness + fadeAmount if brightness == 0 || brightness == 255 { fadeAmount = -fadeAmount } }) } robot := gobot.NewRobot("spark", []gobot.Connection{core}, []gobot.Device{led}, work, ) if err := robot.Start(); err != nil { panic(err) } }