public MainPage()
{
this.InitializeComponent();
//uses the default mpr121 address and Pin #5 on the RaspberryPi as IRQ Pin
__mpr121 = new MPR121();
// this.pinList.DataContext = this.__mpr121;
//this.pinList.ItemsSource = this.__mpr121.Pins;
//this.pinList.UpdateLayout();
pinStatusUIElements = new UIElement[] { pin0Status,pin1Status, pin2Status, pin3Status,
pin4Status, pin5Status,pin6Status, pin7Status,
pin8Status,pin9Status, pin10Status, pin11Status };
this.__initMPR121();
}
private async void __initMPR121()
{
__mpr121 = new MPR121();
//Get the I2C device list on the Raspberry Pi.
string aqs = I2cDevice.GetDeviceSelector(); //get the device selector AQS (adavanced query string)
var i2cDeviceList = await DeviceInformation.FindAllAsync(aqs); //get the I2C devices that match the device selector aqs
//if the device list is not null, try to establish I2C connection between the master and the MPR121
if (i2cDeviceList != null && i2cDeviceList.Count > 0)
{
bool connected = await __mpr121.OpenConnection(i2cDeviceList[0].Id);
if (connected)
{
//MPR121 will raise Touched and Released events if the IRQ pin is connected and configured corectly..
//Adding event handlers for those events
__mpr121.PinTouched += __mpr121_PinTouched; ;
__mpr121.PinReleased += __mpr121_PinReleased; ; ;
}
}
}
