public MainPage()
{
this.InitializeComponent();
Controller = GpioController.GetDefault();
if (null != Controller)
{
TxtMessage.Text += "[OK] GPIO Controller Initialized." + Environment.NewLine;
Uln2003Driver = new Uln2003Driver(Controller, 5, 6, 13, 19);
TxtMessage.Text += "[OK] Uln2003Driver Initialized on 5,6,13,19." + Environment.NewLine;
Status = DoorStatus.Closed;
PinVT = Controller.OpenPin(4);
PinVT.SetDriveMode(GpioPinDriveMode.Input);
TxtMessage.Text += "[OK] VT Initialized on GPIO 04." + Environment.NewLine;
PinVT.ValueChanged += async(sender, args) =>
{
if (!IsBusy && PinVT.Read() == GpioPinValue.High && Status != DoorStatus.Open)
{
IsBusy = true;
await LogMessageAsync("Remote Signal Received on VT.");
await OpenDoorAsync();
await Task.Delay(2000);
await CloseDoorAsync();
IsBusy = false;
}
};
}
}
private async Task CloseDoorAsync()
{
Cts = new CancellationTokenSource();
await LogMessageAsync("Closing Door...");
await Uln2003Driver.TurnAsync(90, TurnDirection.Right, Cts.Token);
Status = DoorStatus.Closed;
await LogMessageAsync("Door is Closed.");
}
private async Task OpenDoorAsync()
{
Cts = new CancellationTokenSource();
await LogMessageAsync("Opening Door...");
await Uln2003Driver.TurnAsync(90, TurnDirection.Left, Cts.Token);
Status = DoorStatus.Open;
await LogMessageAsync("Door is Open.");
}
