public void Dispose()
{
if (_device.ToInt32() != -1)
{
RDing.CloseUSBDevice(_device);
}
}
public double?Read()
{
byte[] transportBuffer = new byte[9];
bool readSuccessful = false;
if (RDing.WriteUSB(_device, _readTemperatureCommand, (uint)_deviceOutputLength, ref _numberOfBytesWritten))
{
Thread.Sleep(50);
readSuccessful = RDing.ReadUSB(_device, transportBuffer, (uint)_deviceInputLength, ref _numberOfBytesRead);
}
if (!readSuccessful)
{
return(null);
}
double temperatureCorrection;
double temperature;
if (transportBuffer[1] == 128)
{
RDing.WriteUSB(_device, _readCalibrationCommand, (uint)_deviceOutputLength, ref _numberOfBytesWritten);
Thread.Sleep(100);
byte[] calibrationBuffer = new byte[9];
RDing.ReadUSB(_device, calibrationBuffer, (uint)_deviceInputLength, ref _numberOfBytesRead);
if (calibrationBuffer[1] == 130)
{
if (calibrationBuffer[3] <= 127)
{
temperatureCorrection = (double)calibrationBuffer[3] * 0.0625;
}
else
{
int test = 256 - (int)calibrationBuffer[3];
temperatureCorrection = (double)(-1 * test) * 0.0625;
}
}
}
if (transportBuffer[3] > 128)
{
temperature = -1.0 * ((double)Convert.ToInt32(256 - (int)transportBuffer[3]) + (double)(transportBuffer[4] >> 4 & 15) * 0.0625);
if (_deviceType == 1 || _deviceType == 3)
{
temperature = (double)(-1 * Convert.ToInt32((double)(256 - (int)transportBuffer[5]) + (double)(transportBuffer[6] >> 4 & 15) * 0.0625));
}
return(temperature);
}
else
{
temperature = (double)Convert.ToInt32(transportBuffer[3]) + (double)(transportBuffer[4] >> 4 & 15) * 0.0625;
if (_deviceType == 1 || _deviceType == 3)
{
temperature = (double)Convert.ToInt32(transportBuffer[5]) + (double)(transportBuffer[6] >> 4 & 15) * 0.0625;
}
return(temperature);
}
}
private void Connect()
{
_device = RDing.OpenUSBDevice(UsbVendorId, UsbDeviceId);
if (_device.ToInt32() == -1)
{
throw new Exception(
"Could not open TEMPer USB device. Make sure the device is connected and rivers are installed.");
}
}
private void InitializeDevice()
{
// Initialize device communication variables
_deviceOutputLength = RDing.GetOutputLength(_device);
_deviceInputLength = RDing.GetInputLength(_device);
// Retrieve device version
byte[] bVersion = new byte[9];
byte[] bVersion2 = new byte[9];
RDing.WriteUSB(_device, _readVersionCommand, (uint)_deviceOutputLength, ref _numberOfBytesWritten);
Thread.Sleep(100);
RDing.ReadUSB(_device, bVersion, (uint)_deviceInputLength, ref _numberOfBytesRead);
var versions = Encoding.ASCII.GetString(bVersion, 1, 8);
Thread.Sleep(100);
RDing.ReadUSB(_device, bVersion2, (uint)_deviceInputLength, ref _numberOfBytesRead);
var str = Encoding.ASCII.GetString(bVersion2, 1, 8);
for (int i = 0; i < versions.Length; i++)
{
if (versions[i] == str[i])
{
break;
}
versions += str[i].ToString();
}
if (versions.Contains("TEMPer2"))
{
if (versions.Contains("1.1"))
{
_deviceType = 3;
}
else
{
_deviceType = 1;
}
}
else
{
_deviceType = 2;
}
}