public RelayState?GetRelayState(int gpioPin)
{
var IsPinOpen = _gpioController.IsPinOpen(gpioPin);
if (!IsPinOpen)
{
_gpioController.OpenPin(gpioPin);
}
var pinState = _gpioController.GetPinMode(gpioPin);
return(pinState == PinMode.Output ? RelayState.On : RelayState.Off);
}