package main

import (

"fmt"

"time"

"github.com/stianeikeland/go-rpio"

)

func signalToFire() {

// Connect to Raspberry PI gpio (i.e. pins on the board)

logMessage("opening gpio")

err := rpio.Open()

if err != nil {

fmt.Println("GPIO is not available")

return

}

defer rpio.Close()

// Setup pins connected to the relays responsible for spinning the launch motor and the firing motor

spinPin := rpio.Pin(21)

firePin := rpio.Pin(20)

spinPin.Output()

firePin.Output()

// Spin up the firing motor so it is ready to fire

spinPin.High()

logMessage("gpio SPIN")

time.Sleep(500 * time.Millisecond)

// Fire the ball by sending the singal to start the fire relay

firePin.High()

logMessage("gpio FIRE")

time.Sleep(500 * time.Millisecond)

// Turn off the motors

firePin.Low()

spinPin.Low()

logMessage("gpio OFF")

}