/// <summary>
/// Read the sensor output and convert the sensor readings into acceleration values.
/// </summary>
public async Task Update()
{
X = (await _x.Read() * SupplyVoltage - _zeroGVoltage) / XVoltsPerG;
Y = (await _y.Read() * SupplyVoltage - _zeroGVoltage) / YVoltsPerG;
Z = (await _z.Read() * SupplyVoltage - _zeroGVoltage) / ZVoltsPerG;
if ((_updateInterval != 0) &&
((Math.Abs(X - _lastX) > AccelerationChangeNotificationThreshold) ||
(Math.Abs(Y - _lastY) > AccelerationChangeNotificationThreshold) ||
(Math.Abs(Z - _lastZ) > AccelerationChangeNotificationThreshold)))
{
var lastNotifiedReading = new Vector(_lastX, _lastY, _lastZ);
var currentReading = new Vector(_lastX = X, _lastY = Y, _lastZ = Z);
AccelerationChanged(this, new SensorVectorEventArgs(lastNotifiedReading, currentReading));
}
}
/// <summary>
/// Convenience method to get the current temperature. For frequent reads, use
/// StartSampling() and StopSampling() in conjunction with the SampleBuffer.
/// </summary>
/// <param name="sampleCount">The number of sample readings to take.
/// Must be greater than 0. These samples are automatically averaged.</param>
/// <param name="sampleIntervalDuration">The time, in milliseconds,
/// to wait in between samples during a reading.</param>
/// <returns>A float value that's ann average value of all the samples taken.</returns>
public async Task<AtmosphericConditions> Read(int sampleCount = 10, int sampleIntervalDuration = 40)
{
// read the voltage
float voltage = await AnalogInputPort.Read(sampleCount, sampleIntervalDuration);
// convert and save to our temp property for later retreival
Temperature = VoltageToTemperature(voltage);
// return
return new AtmosphericConditions(Temperature, 0, 0);
//return Temperature;
}
/// <summary>
/// Convenience method to get the current soil moisture. For frequent reads, use
/// StartUpdating() and StopUpdating().
/// </summary>
/// <param name="sampleCount">The number of sample readings to take.
/// Must be greater than 0.</param>
/// <param name="sampleInterval">The interval, in milliseconds, between
/// sample readings.</param>
/// <returns></returns>
public async Task <float> Read(int sampleCount = 10, int sampleInterval = 40)
{
// read the voltage
float voltage = await AnalogInputPort.Read(sampleCount, sampleInterval);
// convert and save to our temp property for later retrieval
Moisture = VoltageToMoisture(voltage);
// return
return(Moisture);
}
/// <summary>
/// Convenience method to get the current soil moisture. For frequent reads, use
/// StartUpdating() and StopUpdating().
/// </summary>
/// <param name="sampleCount">The number of sample readings to take.
/// Must be greater than 0.</param>
/// <param name="sampleInterval">The interval, in milliseconds, between
/// sample readings.</param>
/// <returns></returns>
public async Task <float> Read(int sampleCount = 10, int sampleInterval = 40)
{
DigitalPort.State = true;
float voltage = await AnalogInputPort.Read(sampleCount, sampleInterval);
DigitalPort.State = false;
// convert and save to our temp property for later retrieval
Moisture = VoltageToMoisture(voltage);
return(Moisture);
}
/// <summary>
/// Convenience method to get the current temperature. For frequent reads, use
/// StartSampling() and StopSampling() in conjunction with the SampleBuffer.
/// </summary>
/// <param name="sampleCount">The number of sample readings to take.
/// Must be greater than 0. These samples are automatically averaged.</param>
/// <param name="sampleIntervalDuration">The time, in milliseconds,
/// to wait in between samples during a reading.</param>
/// <returns>A float value that's ann average value of all the samples taken.</returns>
public async Task <float> Read(int sampleCount = 10, int sampleIntervalDuration = 40)
{
// read the voltage
float voltage = await AnalogInputPort.Read(sampleCount, sampleIntervalDuration);
// convert and save to our temp property for later retreival
WaterLevel = VoltageToWaterLevel(voltage);
// return
return(WaterLevel);
}
/// <summary>
/// Convenience method to get the current soil moisture. For frequent reads, use
/// StartUpdating() and StopUpdating().
/// </summary>
/// <param name="sampleCount">The number of sample readings to take.
/// Must be greater than 0.</param>
/// <param name="sampleInterval">The interval, in milliseconds, between
/// sample readings.</param>
/// <returns></returns>
public async Task <FloatChangeResult> Read(int sampleCount = 10, int sampleInterval = 40)
{
// save previous moisture value
float previousMoisture = Moisture;
// read the voltage
float voltage = await AnalogInputPort.Read(sampleCount, sampleInterval);
// convert and save to our temp property for later retrieval
Moisture = VoltageToMoisture(voltage);
// return new and old Moisture values
return(new FloatChangeResult(Moisture, previousMoisture));
}
/// <summary>
/// Voltage being output by the sensor.
/// </summary>
public async Task <double> GetVoltage()
{
return(await _referenceVoltagePort.Read() * 3.3);
}