/// <summary>
/// Get the current temperature and update the Temperature property.
/// </summary>
public void Update()
{
var reading = (float)(AnalogPort.Read() * 3300);
reading -= _yIntercept;
reading /= _millivoltsPerDegreeCentigrade;
Temperature = reading;
}
/// <summary>
/// Returns the soil moisture current value.
/// </summary>
/// <returns>Value ranges from 0 - 100</returns>
public async Task <float> Read()
{
DigitalPort.State = true;
Thread.Sleep(5);
var sample = AnalogPort.Read();
DigitalPort.State = false;
Moisture = 100 - Map(sample, 0, 1023, 0, 100);
return(Moisture);
}
public double Read(AnalogPort analogPort)
{
byte register = (byte)analogPort;
register += RegisterValueBase;
byte[] writeBuffer = new byte[1] {
register
};
byte[] readBuffer = new byte[2] {
0, 0
};
Debug.Assert(Device != null, "Initialise method not called");
Device.WriteRead(writeBuffer, readBuffer);
ushort value = BitConverter.ToUInt16(readBuffer, 0);
Debug.WriteLine($"GroveBaseHatRPI Read {analogPort} MSB 0x{readBuffer[1]:X} LSB 0x{readBuffer[0]:X} Value {value}");
return((double)value / 10.0);
}
/// <summary>
/// Returns the soil moisture current value.
/// </summary>
/// <returns>Value ranges from 0 - 100</returns>
public async Task <float> Read()
{
Moisture = AnalogPort.Read();
return(100 - Map(Moisture, 0, 1023, 0, 100));
}
/// <summary>
/// Implement IDisposable interface.
/// </summary>
public void Dispose()
{
AnalogPort.Dispose();
AnalogPort = null;
}