protected virtual void OnPinTouched(PinTouchedEventArgs touchedEventArgs)
{
if (PinTouched != null)
{
PinTouched(this, touchedEventArgs);
}
}
private void Mpr122IRQpin_ValueChanged(GpioPin sender, GpioPinValueChangedEventArgs args)
{
if (args.Edge == GpioPinEdge.FallingEdge)
{
//read the touch status register and convert it in to CapsenseElectrode Enum
int rawTouchRegisterData = readTouchStatusRegister();
currentReading = (PinId)rawTouchRegisterData;
List <PinId> allTouchedPins = new List <PinId>();
List <PinId> allReleasedPins = new List <PinId>();
foreach (PinId val in Enum.GetValues(typeof(PinId))) //loop through all CapSense Pins
{
if (val != PinId.None)
{
if (currentReading.HasFlag(val) && !lastReading.HasFlag(val))
{
allTouchedPins.Add(val);
this.__pins.Find(p => p.PinId == val).SetTouched(true);
}
if (!currentReading.HasFlag(val) && lastReading.HasFlag(val))
{
allReleasedPins.Add(val);
this.__pins.Find(p => p.PinId == val).SetTouched(false);
}
}
}
allTouchedPins.TrimExcess();
allReleasedPins.TrimExcess();
if (allTouchedPins.Count > 0)
{
PinTouchedEventArgs touchedData = new PinTouchedEventArgs(allTouchedPins);
OnPinTouched(touchedData);
}
if (allReleasedPins.Count > 0)
{
PinReleasedEventArgs releasedData = new PinReleasedEventArgs(allReleasedPins);
OnPinReleased(releasedData);
}
lastReading = currentReading;
}
}