/// <summary>
/// Gets raspberry device pin value.
/// </summary>
/// <param name="pin">Raspberry pin</param>
/// <returns></returns>
public PinValue GetPinValue(RaspberyPin pin)
{
if (!this.IsInitialized)
{
throw new Exception("Raspberry device not initialized");
}
try
{
string pinAddress = pin.Code.ToString().Split('_').Last().Replace("0", "");
double value = 0;
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
value = double.Parse(("cat /sys/class/gpio/gpio" + pinAddress + "/value").Bash());
}
if (value > 0)
{
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Value = PinValue.High;
}
else
{
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Value = PinValue.Low;
}
}
catch (Exception ex)
{
throw ex;
}
return(this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Value);
}
/// <summary>
/// Initialize raspberry device.
/// </summary>
public void Initialize()
{
if (!IsInitialized)
{
this._devicePins = new List <RaspberyPin>();
foreach (PinCode p in Enum.GetValues(typeof(PinCode)))
{
RaspberyPin pin = new RaspberyPin(p);
this._devicePins.Add(pin);
this.InitializePin(pin);
}
}
this.IsInitialized = true;
}
/// <summary>
/// Initialize raspberry device pin.
/// </summary>
/// <param name="pin">Raspberry pin</param>
private void InitializePin(RaspberyPin pin)
{
try
{
string pinAddress = pin.Code.ToString().Split('_').Last().Replace("0", "");
if (pin.Type == PinType.GPIO)
{
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
("echo " + pinAddress + " > /sys/class/gpio/unexport").Bash();
("echo " + pinAddress + " > /sys/class/gpio/export").Bash();
("echo out > /sys/class/gpio/gpio" + pinAddress + "/direction").Bash();
}
}
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Initialized = true;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Sets raspberry device pin value.
/// </summary>
/// <param name="pin">Raspberry pin</param>
/// <param name="pinValue">Raspberry pin value</param>
public void SetPinValue(RaspberyPin pin, PinValue pinValue)
{
if (!this.IsInitialized)
{
throw new Exception("Raspberry device not initialized");
}
if (!RaspberyPin.IsGPIOPin(pin.Code))
{
throw new Exception("Can not set pin value to non GPIO pin");
}
try
{
string pinAddress = pin.Code.ToString().Split('_').Last().Replace("0", "");
string value = "";
switch (pinValue)
{
case PinValue.High:
value = "1";
break;
case PinValue.Low:
value = "0";
break;
}
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
("echo " + value + " > /sys/class/gpio/gpio" + pinAddress + "/value").Bash();
}
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Value = pinValue;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Sets raspbery device pin direction.
/// </summary>
/// <param name="pin">Raspberry pin</param>
/// <param name="pinDirection">Raspberry pin direction</param>
public void SetPinDirection(RaspberyPin pin, PinDirection pinDirection)
{
if (!this.IsInitialized)
{
throw new Exception("Raspberry device not initialized");
}
if (!RaspberyPin.IsGPIOPin(pin.Code))
{
throw new Exception("Can not set pin direction to non GPIO pin");
}
try
{
string pinAddress = pin.Code.ToString().Split('_').Last().Replace("0", "");
string direction = "";
switch (pinDirection)
{
case PinDirection.In:
direction = "in";
break;
case PinDirection.Out:
direction = "out";
break;
}
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
("echo " + direction + " > /sys/class/gpio/gpio" + pinAddress + "/direction").Bash();
}
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Direction = pinDirection;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Dipose raspbery pin.
/// </summary>
/// <param name="pin">Raspberry pin</param>
private void DisposePin(RaspberyPin pin)
{
if (!this.IsInitialized)
{
throw new Exception("Raspberry device not initialized");
}
try
{
string pinAddress = pin.Code.ToString().Split('_').Last().Replace("0", "");
if (pin.Type == PinType.GPIO)
{
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
("echo " + pinAddress + " > /sys/class/gpio/unexport").Bash();
}
}
this._devicePins.Where(p => p.Code == pin.Code).SingleOrDefault().Initialized = false;
}
catch (Exception ex)
{
throw ex;
}
}
