/// <summary>
/// Construct a new Button attached to a DigitalIn input.
/// </summary>
/// <param name="input">The DigitalIn the button is attached to</param>
/// <param name="activeLow">Whether the button is active-low (true, default). If the button is active-high, set to false.</param>
public Button(DigitalIn input, bool activeLow = true)
{
Input = input;
this.activeLow = activeLow;
input.DigitalValueChanged += Input_DigitalValueChanged;
input.MakeDigitalInAsync();
}
public Nau7802(I2C i2c, DigitalIn drdy = null) : base(null, 24, 0)
{
parent = this;
if (drdy != null)
{
this.drdy = drdy;
drdy.MakeDigitalInAsync();
drdy.DigitalValueChanged += Drdy_DigitalValueChanged;
}
AutoUpdateWhenPropertyRead = true;
dev = new SMBusDevice(0x2A, i2c);
registers = new Nau7802Registers(new SMBusRegisterManagerAdapter(dev));
registers.puCtrl.registerReset = 1; // reset all registers
registers.puCtrl.write().Wait();
registers.puCtrl.registerReset = 0; // clear reset
registers.puCtrl.powerUpDigital = 1; // power up digital
registers.puCtrl.write().Wait();
Task.Delay(10).Wait();
if (registers.puCtrl.read().Result.powerUpReady == 0)
{
Utility.Error("Could not power up NAU7802");
return;
}
// useful defaults
registers.puCtrl.useExternalCrystal = 0;
registers.puCtrl.useInternalLdo = 1;
registers.puCtrl.powerUpDigital = 1;
registers.puCtrl.powerUpAnalog = 1;
registers.puCtrl.write().Wait();
registers.ctrl1.setVldo(Vldoes.mV_3000);
registers.ctrl1.write().Wait();
UpdateReferenceVoltage(); // set the pins up with the default gains
registers.pga.pgaBypass = 0;
registers.pga.disableChopper = 1;
registers.pga.write().Wait();
registers.adc.setRegChpFreq(RegChpFreqs.off);
registers.adc.regChp = 0;
registers.adc.write().Wait();
registers.i2cCtrl.bgpCp = 0;
registers.i2cCtrl.write().Wait();
registers.ctrl2.setConversionRate(ConversionRates.Sps_10);
registers.ctrl2.write().Wait();
registers.puCtrl.cycleStart = 1;
registers.puCtrl.write().Wait();
}
/// <summary>
/// Construct a new RotaryEncoder from two digital inputs
/// </summary>
/// <param name="a">A channel input</param>
/// <param name="b">B channel input</param>
/// <param name="stepsPerTick">The number of steps to count as one "tick"</param>
public RotaryEncoder(DigitalIn a, DigitalIn b, int stepsPerTick = 1)
{
this.stepsPerTick = stepsPerTick;
this.a = a;
this.b = b;
a.MakeDigitalInAsync();
b.MakeDigitalInAsync();
Position = 0;
a.DigitalValueChanged += A_DigitalValueChanged;
b.DigitalValueChanged += B_DigitalValueChanged;
}