private static async Task Main(string[] args)
{
Console.WriteLine("Hello Mcp3428 Sample!");
var options = new I2cConnectionSettings(1,
Mcp3428.I2CAddressFromPins(PinState.Low, PinState.Low));
using (var dev = I2cDevice.Create(options))
{
using (var adc = new Mcp3428(dev, AdcMode.OneShot, resolution: AdcResolution.Bit16, pgaGain: AdcGain.X1))
{
var watch = new Stopwatch();
watch.Start();
while (true)
{
for (int i = 0; i < 4; i++)
{
var last = watch.ElapsedMilliseconds;
var value = adc.ReadChannel(i);
foreach (var b in adc.LastBytes.ToArray())
{
Console.Write($"{b:X} ");
}
Console.WriteLine();
Console.WriteLine($"ADC Channel[{adc.LastChannel + 1}] read in {watch.ElapsedMilliseconds - last} ms, value: {value} V");
await Task.Delay(500);
}
Console.WriteLine($"mode {adc.Mode}, gain {adc.InputGain}, res {adc.Resolution}");
await Task.Delay(1000);
}
}
}
}
public void Dispose()
{
if (!disposed)
{
return;
}
sensor.Dispose();
sensor = null;
disposed = true;
}
public AdcExpansionBoard(int I2CId = Pinout.I2cBus.I2C2, ushort i2cAddress = 0x68)
{
// Adress Options 0x68, 0x6A, 0x6C or 0x6E
I2cDevice i2cDevice = I2cDevice.Create(new I2cConnectionSettings(I2CId, i2cAddress));
sensor = new Mcp3428(i2cDevice, AdcMode.OneShot, AdcResolution.Bit16, AdcGain.X1);
PT100TemperatureCoefficient = 1.250f; //not sure why this is better... 0c correct 30c 0.5c off...
//PT100TemperatureCoefficient = 0.385f;// 0.00385 Ohms/Ohm/ºC
//Default Vishay NTCALUG01A103F specs
//B25/85-value 3435 to 4190 K
NTC_A = 0.0011415995549162692f;
NTC_B = 0.000232134233116422f;
NTC_C = 9.520031026040015e-8f;
}
