public MeadowApp()
{
Console.WriteLine("Initializing...");
// configure our AnalogTemperature sensor
analogTemperature = new AnalogTemperature(
device: Device,
analogPin: Device.Pins.A00,
sensorType: AnalogTemperature.KnownSensorType.LM35
);
// Example that uses an IObersvable subscription to only be notified
// when the temperature changes by at least a degree.
analogTemperature.Subscribe(new FilterableObserver <AtmosphericConditionChangeResult, AtmosphericConditions>(
h => {
Console.WriteLine($"Temp changed by a degree; new: {h.New.Temperature}, old: {h.Old.Temperature}");
},
e => {
return(Math.Abs(e.Delta.Temperature) > 1);
}
));
// classical .NET events can also be used:
analogTemperature.Updated += (object sender, AtmosphericConditionChangeResult e) => {
Console.WriteLine($"Temp Changed, temp: {e.New.Temperature}°C");
};
// Get an initial reading.
ReadTemp().Wait();
// Spin up the sampling thread so that events are raised and
// IObservable notifications are sent.
analogTemperature.StartUpdating();
}
public void ConfigurePorts()
{
temperatureSensor = new AnalogTemperature(
Device, Device.Pins.A00, AnalogTemperature.KnownSensorType.LM35
);
// subscribe to 1/4º C changes in temp
temperatureSensor.Subscribe(new FilterableChangeObserver <AtmosphericConditionChangeResult, AtmosphericConditions>(
h => {
// probably update screen or something
Console.WriteLine($"Current Temp: {h.New.Temperature}ºC");
} /*,
* e => { return (Math.Abs(e.Delta.Temperature) > 0.25f); }*/));
}
void Initialize()
{
Console.WriteLine("Initialize hardware...");
onboardLed = new RgbPwmLed(device: Device,
redPwmPin: Device.Pins.OnboardLedRed,
greenPwmPin: Device.Pins.OnboardLedGreen,
bluePwmPin: Device.Pins.OnboardLedBlue,
3.3f, 3.3f, 3.3f,
Meadow.Peripherals.Leds.IRgbLed.CommonType.CommonAnode);
onboardLed.SetColor(Color.Red);
button = new PushButton(Device, Device.Pins.D04, ResistorMode.InternalPullUp);
button.Clicked += ButtonClicked;
var config = new SpiClockConfiguration
(
speedKHz: 6000,
mode: SpiClockConfiguration.Mode.Mode3
);
var display = new St7789
(
device: Device,
spiBus: Device.CreateSpiBus(Device.Pins.SCK, Device.Pins.MOSI, Device.Pins.MISO, config),
chipSelectPin: Device.Pins.D02,
dcPin: Device.Pins.D01,
resetPin: Device.Pins.D00,
width: 240, height: 240
);
displayController = new DisplayController(display);
capacitive = new Capacitive(
device: Device,
analogPin: Device.Pins.A01,
minimumVoltageCalibration: MINIMUM_VOLTAGE_CALIBRATION,
maximumVoltageCalibration: MAXIMUM_VOLTAGE_CALIBRATION);
capacitive.Subscribe(new FilterableChangeObserver <FloatChangeResult, float>(
handler =>
{
onboardLed.SetColor(Color.Purple);
displayController.UpdateMoistureImage(handler);
displayController.UpdateMoisturePercentage(handler.New, handler.Old);
onboardLed.SetColor(Color.Green);
},
filter =>
{
return(Math.Abs(filter.Delta) > 0.05);
}
));
capacitive.StartUpdating(
sampleCount: 10,
sampleIntervalDuration: 40,
standbyDuration: (int)TimeSpan.FromHours(1).TotalMilliseconds);
analogTemperature = new AnalogTemperature(Device, Device.Pins.A00, AnalogTemperature.KnownSensorType.LM35);
analogTemperature.Subscribe(new FilterableChangeObserver <AtmosphericConditionChangeResult, AtmosphericConditions>(
handler =>
{
onboardLed.SetColor(Color.Purple);
displayController.UpdateTemperatureValue(handler.New.Temperature.Value, handler.Old.Temperature.Value);
onboardLed.SetColor(Color.Green);
},
filter =>
{
return(Math.Abs(filter.Delta.Temperature.Value) > 1f);
}
));
analogTemperature.StartUpdating(
sampleCount: 10,
sampleIntervalDuration: 40,
standbyDuration: (int)TimeSpan.FromHours(1).TotalMilliseconds);
onboardLed.SetColor(Color.Green);
}
void Initialize()
{
onboardLed = new RgbPwmLed(
device: Device,
redPwmPin: Device.Pins.OnboardLedRed,
greenPwmPin: Device.Pins.OnboardLedGreen,
bluePwmPin: Device.Pins.OnboardLedBlue);
onboardLed.SetColor(Color.Red);
button = new PushButton(Device, Device.Pins.D04, ResistorMode.InternalPullUp);
button.Clicked += ButtonClicked;
var config = new SpiClockConfiguration(
speed: new Frequency(48000, Frequency.UnitType.Kilohertz),
mode: SpiClockConfiguration.Mode.Mode3);
var spiBus = Device.CreateSpiBus(
clock: Device.Pins.SCK,
copi: Device.Pins.MOSI,
cipo: Device.Pins.MISO,
config: config);
var display = new St7789
(
device: Device,
spiBus: spiBus,
chipSelectPin: Device.Pins.D02,
dcPin: Device.Pins.D01,
resetPin: Device.Pins.D00,
width: 240, height: 240
);
displayController = new DisplayController(display);
capacitive = new Capacitive(
device: Device,
analogPin: Device.Pins.A01,
minimumVoltageCalibration: MINIMUM_VOLTAGE_CALIBRATION,
maximumVoltageCalibration: MAXIMUM_VOLTAGE_CALIBRATION);
var capacitiveObserver = Capacitive.CreateObserver(
handler: result =>
{
onboardLed.SetColor(Color.Purple);
displayController.UpdateMoistureImage(result.New);
displayController.UpdateMoisturePercentage(result.New, result.Old.Value);
onboardLed.SetColor(Color.Green);
},
filter: null
);
capacitive.Subscribe(capacitiveObserver);
capacitive.StartUpdating(TimeSpan.FromHours(1));
analogTemperature = new AnalogTemperature(Device, Device.Pins.A00, AnalogTemperature.KnownSensorType.LM35);
var analogTemperatureObserver = AnalogTemperature.CreateObserver(
handler =>
{
onboardLed.SetColor(Color.Purple);
displayController.UpdateTemperatureValue(handler.New, handler.Old.Value);
onboardLed.SetColor(Color.Green);
},
filter: null
);
analogTemperature.Subscribe(analogTemperatureObserver);
analogTemperature.StartUpdating(TimeSpan.FromHours(1));
onboardLed.SetColor(Color.Green);
}