private async void SendTemperature(TemperatureRecord temperatureRecord)
{
try
{
var runtime = GetRuntime();
var dataPoints = new
{
deviceId = _deviceId,
tempC = temperatureRecord.Celsius,
tempF = temperatureRecord.Fahrenheit,
runtime
};
var messageString = JsonConvert.SerializeObject(dataPoints);
var message = new Message(Encoding.ASCII.GetBytes(messageString));
Debug.WriteLine($">> Sending current temperature to Iot Hub... {messageString}");
var deviceClient = InitializeDeviceClient();
await deviceClient.SendEventAsync(message);
deviceClient.Dispose();
}
catch (Exception ex)
{
Debug.WriteLine("FAILED to send temperature to Iot Hub.");
Debug.WriteLine(ex);
}
}
private void UpdateCircuit(TemperatureRecord temperatureRecord)
{
var redValue = (temperatureRecord.Fahrenheit > _avgTemperature) ? GpioPinValue.Low : GpioPinValue.High;
_redLedPin.Write(redValue);
var yellowValue = (temperatureRecord.Fahrenheit <= _avgTemperature) ? GpioPinValue.Low : GpioPinValue.High;
_yellowLedPin.Write(yellowValue);
}
private void UpdateThermometerControls(TemperatureRecord temperatureRecord)
{
var thermometerHeight = ThermometerScale.Height * (temperatureRecord.Fahrenheit / 100);
var topMargin = 100.0 + (ThermometerScale.Height - thermometerHeight);
var margin = ThermometerValue.Margin;
margin.Top = topMargin;
ThermometerValue.Margin = margin;
ThermometerValue.Height = thermometerHeight;
}
private void UpdateTemperatureControls(TemperatureRecord temperatureRecord)
{
try
{
ThermometerValue.Visibility = Visibility.Visible;
if (temperatureRecord.Fahrenheit < 0)
{
ErrorTextBox.Text = string.Format("An error was detected with the circuit.");
ErrorTextBox.Visibility = Visibility.Visible;
ErrorIcon.Visibility = Visibility.Visible;
}
else
{
ErrorTextBox.Visibility = Visibility.Collapsed;
ErrorIcon.Visibility = Visibility.Collapsed;
}
CurrentTempFTextBox.Text = string.Format("The current\r\ntemperature\r\nis {0} °F.", Math.Round(temperatureRecord.Fahrenheit, 2));
if (_avgTemperature > 0.0)
{
AverageTempFTextBox.Text = string.Format("The average\r\ntemperature\r\nis {0} °F.", Math.Round(_avgTemperature, 2));
AverageTempFTextBox.Visibility = Visibility.Visible;
}
else
{
AverageTempFTextBox.Visibility = Visibility.Collapsed;
}
UpdateThermometerControls(temperatureRecord);
}
catch
{
// ignored
}
}