Toggler

gistfile1.txt

// A little blurb I wrote to toggle something on and off, always making sure to toggle off before shutdown

	toggle := make(chan bool, 1)

	outputPin, err := hwio.GetPinWithMode(pin, hwio.OUTPUT)
	if err != nil {
		log.Printf("Error getting GPIO pin: %v\n", err)
	}

	go func() {
		for {
			timer := time.NewTimer(time.Second * 3)
			<-timer.C
			fmt.Println("Toggling on")
			toggle <- true
			timer2 := time.NewTimer(time.Second * 3)
			<-timer2.C
			fmt.Println("Toggling off")
			toggle <- false
		}
	}()

	for {
		select {
		case <-shutdownFlight:
			fmt.Println("--- Break")
			hwio.DigitalWrite(outputPin, hwio.LOW)
			hwio.CloseAll()
			fmt.Println("Closed all pins")
			shutdownComplete <- true
			break
		case t := <-toggle:
			aprsMessage <- "Preparing to cutdown in 30 sec"
			fmt.Printf("Toggling: %v\n", t)
			if t {
				hwio.DigitalWrite(outputPin, hwio.HIGH)
			} else {
				hwio.DigitalWrite(outputPin, hwio.LOW)
			}
		}

	}