protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
base.OnNavigatingFrom(e);
_timer.Stop();
_tempHum?.Dispose();
_tempHum = null;
_barometer?.Dispose();
_barometer = null;
_luxMeter?.Dispose();
_luxMeter = null;
_magnetometer?.Dispose();
_magnetometer = null;
}
private async void StartCompass()
{
string advancedQueryString = I2cDevice.GetDeviceSelector();
var deviceInformations = await DeviceInformation.FindAllAsync(advancedQueryString);
if (deviceInformations.Any())
{
Compass = new Hmc5883L();
await Compass.Initialize();
if (Compass.IsConnected())
{
Compass.SetOperatingMode(Hmc5884LOperatingMode.ContinuousOperatingMode);
}
}
else
{
LogAsync("No I2C controllers are connected.");
}
}
private async void InitializeAsync()
{
try
{
_tempHum = new Dsth01(27); // GPIO27 connected to Dsth01 CS-pin
_barometer = new Bmp180();
_magnetometer = new Hmc5883L(22); // GPIO22 connected to Hmc5883L DRDY-pin
_luxMeter = new Bh1750Fvi();
}
catch
{
Debug.WriteLine("Sensor initialization failed.");
return;
}
await Task.WhenAll(_magnetometer.ConnectAsync(), _barometer.ConnectAsync(), _tempHum.ConnectAsync(), _luxMeter.ConnectAsync());
// Set magnetometer gain an averaging
if (_magnetometer.Connected)
{
await
Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() => { Magnetometer.Visibility = Visibility.Visible; });
_magnetometer.WriteRegister(Hmc5883L.Register.ConfA, (byte) Hmc5883L.ConfigA.Average8);
_magnetometer.WriteRegister(Hmc5883L.Register.ConfB, (byte) Hmc5883L.ConfigB.Gain1370);
}
// The BH175FVI sensor supports a continuous measurement mode
if (_luxMeter.Connected)
{
await
Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() => { Ambient.Visibility = Visibility.Visible; });
_luxMeter.Mode = Bh1750Fvi.Resolution.VeryHigh;
_luxMeter.ReadingChanged += _AmbientLuxChanged;
_luxMeter.ContinuousPeriod = 2000; // every 2 seconds
_luxMeter.ContinuousMeasurement = true;
}
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
if (_tempHum.Connected)
Humidity.Visibility = Visibility.Visible;
if (_barometer.Connected)
Barometer.Visibility = Visibility.Visible;
});
// The rest of the sensors are polled periodically
_timer = new DispatcherTimer {Interval = TimeSpan.FromMilliseconds(1000)};
_timer.Tick += _timer_Tick;
_timer.Start();
}
protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
base.OnNavigatingFrom(e);
_timer.Stop();
_tempHum?.Dispose();
_tempHum = null;
_barometer?.Dispose();
_barometer = null;
_luxMeter?.Dispose();
_luxMeter = null;
_magnetometer?.Dispose();
_magnetometer = null;
}
private async void InitializeAsync()
{
try
{
_tempHum = new Dsth01(27); // GPIO27 connected to Dsth01 CS-pin
_barometer = new Bmp180();
_magnetometer = new Hmc5883L(22); // GPIO22 connected to Hmc5883L DRDY-pin
_luxMeter = new Bh1750Fvi();
}
catch
{
Debug.WriteLine("Sensor initialization failed.");
return;
}
await Task.WhenAll(_magnetometer.ConnectAsync(), _barometer.ConnectAsync(), _tempHum.ConnectAsync(), _luxMeter.ConnectAsync());
// Set magnetometer gain an averaging
if (_magnetometer.Connected)
{
await
Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() => { Magnetometer.Visibility = Visibility.Visible; });
_magnetometer.WriteRegister(Hmc5883L.Register.ConfA, (byte)Hmc5883L.ConfigA.Average8);
_magnetometer.WriteRegister(Hmc5883L.Register.ConfB, (byte)Hmc5883L.ConfigB.Gain1370);
}
// The BH175FVI sensor supports a continuous measurement mode
if (_luxMeter.Connected)
{
await
Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() => { Ambient.Visibility = Visibility.Visible; });
_luxMeter.Mode = Bh1750Fvi.Resolution.VeryHigh;
_luxMeter.ReadingChanged += _AmbientLuxChanged;
_luxMeter.ContinuousPeriod = 2000; // every 2 seconds
_luxMeter.ContinuousMeasurement = true;
}
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
if (_tempHum.Connected)
{
Humidity.Visibility = Visibility.Visible;
}
if (_barometer.Connected)
{
Barometer.Visibility = Visibility.Visible;
}
});
// The rest of the sensors are polled periodically
_timer = new DispatcherTimer {
Interval = TimeSpan.FromMilliseconds(1000)
};
_timer.Tick += _timer_Tick;
_timer.Start();
}