/// <summary>
/// Reset the onboard oled screen by switching off/on the reset pin.
/// </summary>
public void Reset()
{
oledReset?.Write(PinValue.Low);
Thread.Sleep(100);
oledReset?.Write(PinValue.High);
Thread.Sleep(100);
}
private void On()
{
if (!CurrentState.IsFiring)
{
//Logger.LogInformation($"SSR: {Id} - ON {_millisOn}");
_pin?.Write(GpioPinValue.High);
PriorState = CurrentState;
CurrentState = CurrentState.Fire(true);
CurrentState.IsFiring = true;
SendNotification();
}
}
public void Switch(SSRState state)
{
switch (state)
{
case SSRState.On:
_gpioPin?.Write(GpioPinValue.High);
break;
case SSRState.Off:
_gpioPin?.Write(GpioPinValue.Low);
break;
}
State = state;
}
private async void Timer_Tick(object sender, object e)
{
// Switch off status LEDs
redStatus?.Write(GpioPinValue.Low);
greenStatus?.Write(GpioPinValue.Low);
// Collect temperature and humidity
var temp = shield.GetTemperature();
var humid = shield.GetHumidity();
tempMeasurements.Add(temp);
humidMeasurements.Add(humid);
// Update UI
TempValue.Text = Math.Round(temp, 2) + " \u00B0C";
HumidityValue.Text = Math.Round(humid, 2) + "%";
UpdateValue.Text = DateTime.Now.ToString();
// Send average of collected humid and temp once every full 30 minutes
var minute = DateTime.Now.Minute;
if (minute == 00 || minute == 30)
{
// Ensures, that only one message is sent per minute
if (!thisMinutesMessageSent)
{
thisMinutesMessageSent = true;
await SendAvgTempAndHumidAsync();
}
}
else
{
thisMinutesMessageSent = false;
}
}
public async Task <bool> Initialiser(uint largeur, uint hauteur, string sousTypeVideo)
{
bool res = false;
_ledOccupe?.Write(GpioPinValue.High);
_mediaCapture = new MediaCapture();
await _mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings()
{
SharingMode = MediaCaptureSharingMode.ExclusiveControl,
MemoryPreference = MediaCaptureMemoryPreference.Cpu,
StreamingCaptureMode = StreamingCaptureMode.Video
});
res = await InitialiserSourceImages(largeur, hauteur, sousTypeVideo);
_ledOccupe?.Write(GpioPinValue.Low);
return(res);
}
private async void ProcessTimerTick(object sender, object e)
{
_secondsUntilLaunch--;
if (_secondsUntilLaunch > 0)
{
await ProvideStatusUpdate(_secondsUntilLaunch.ToString());
}
else if (_secondsUntilLaunch == 0)
{
Status.Text = "Lift off";
_pin?.Write(GpioPinValue.Low);
}
else if (_secondsUntilLaunch < 0)
{
_pin?.Write(GpioPinValue.High);
_controlTimer.Stop();
RecordLaunch();
}
}
private async void _lecteurMedia_FrameArrived(MediaFrameReader sender, MediaFrameArrivedEventArgs args)
{
lock (_photoAPrendreLOCK)
{
if (_photoAPrendre != 1)
{
return;
}
_photoAPrendre++;
}
_ledOccupe?.Write(GpioPinValue.High);
MediaFrameReference imageCourante = sender.TryAcquireLatestFrame();
if (!(imageCourante == null || imageCourante.VideoMediaFrame == null || imageCourante.VideoMediaFrame.SoftwareBitmap == null))
{
await EnregistrerImage(imageCourante);
lock (_photoAPrendreLOCK) { _photoAPrendre = 0; }
}
_ledOccupe?.Write(GpioPinValue.Low);
}
private void PumpStateRequestOccured(ComponentStateRequest <PumpRequestState> pumpRequestState)
{
bool correctPump = pumpRequestState.Id == CurrentState.Id;
if (pumpRequestState.Id == CurrentState.Id && CurrentState.IsDifferent(pumpRequestState.RequestState))
{
CurrentState = CurrentState.Update(pumpRequestState.RequestState);
if (CurrentState.IsEngaged)
{
_pin?.Write(GpioPinValue.High);
}
else
{
_pin?.Write(GpioPinValue.Low);
}
Logger.LogInformation($"Pump: {CurrentState.Id} - {CurrentState.IsEngaged}");
_eventHandler.ComponentStateChangeFiring(new ComponentStateChange <PumpState> {
CurrentState = CurrentState.Clone()
});
}
}
private async void Twitter_Tick(ThreadPoolTimer timer)
{
var lastTweet = await _twitter.GetTweet();
if (lastTweet.user == null)
{
return;
}
var onOffstr = lastTweet.on ? "ligar" : "desligar";
_pinLed?.Write(lastTweet.on ? GpioPinValue.High : GpioPinValue.Low);
await _dispacher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
this.txbMessage1.Text = $"{lastTweet.user} \nmandou {onOffstr}!";
this.imgProfile.Source = new BitmapImage(new Uri(lastTweet.image));
});
}
/// <summary>
/// Write either command or data, with automatic 4/8-bit selection
/// </summary>
/// <param name="value">value to write</param>
/// <param name="mode">Mode for RS (register select) pin.</param>
/// <param name="backlight">Backlight state.</param>
public void Send(byte value, bool mode, bool backlight)
{
if (_disposed)
{
throw new ObjectDisposedException();
}
_rsPort.Write(mode ? GpioPinValue.High : GpioPinValue.Low);
// if there is a RW pin indicated, set it low to Write
_rwPort?.Write(GpioPinValue.Low);
if (!FourBitMode)
{
Write8Bits(value);
}
else
{
Write4Bits((byte)(value >> 4));
Write4Bits(value);
}
}
private void TurnLedOn()
{
pinValue = GpioPinValue.Low;
pin.Write(pinValue);
}
public void PowerON()
{
oledVext?.Write(PinValue.Low); // based on Heltec.cpp:Heltec_ESP32::VextON()
Thread.Sleep(100);
}
private void setPinStatus(GpioPin pin, GpioPinValue value)
{
pin.Write(value);
}
// Set the red led state
private void redLedState(GpioPinValue val)
{
redLed?.Write(val);
}
public Byte RegisterReadByte(byte address)
{
byte[] writeBuffer = new byte[] { address &= RegisterAddressReadMask };
byte[] readBuffer = new byte[1];
Debug.Assert(Rfm9XLoraModem != null);
ChipSelectGpioPin.Write(GpioPinValue.Low);
Rfm9XLoraModem.Write(writeBuffer);
Rfm9XLoraModem.Read(readBuffer);
ChipSelectGpioPin.Write(GpioPinValue.High);
return(readBuffer[0]);
}
public void On()
{
pin.Write(GpioPinValue.High);
}
public void SwitchOn()
{
gpiPin.Write(GpioPinValue.High);
Sequence.Add(new Tuple <Color, string>(this.color, gpiPin.Read().ToString()));
}
void Pulse(GpioPin pin)
{
pin.Write(GpioPinValue.Low);
pin.Write(GpioPinValue.High);
}
/// <summary>
/// Disables the module (power off).
/// </summary>
public void Disable()
{
//serialPort.Close(); TODO: No support in UWP does anything need to happen instead?
resetControl.Write(ResetState.NotRunning);
}
private bool Read()
{
var now = DateTime.UtcNow;
if (!_firstReading && ((now - _prevReading).TotalMilliseconds < 2000))
{
return(false);
}
_firstReading = false;
_prevReading = now;;
_data[0] = _data[1] = _data[2] = _data[3] = _data[4] = 0;
_dataPin.PinMode = GpioPinDriveMode.Output;
_dataPin.Write(GpioPinValue.High);
Thread.Sleep(250);
_dataPin.Write(GpioPinValue.Low);
Thread.Sleep(20);
//TIME CRITICAL ###############
_dataPin.Write(GpioPinValue.High);
//=> DELAY OF 40 microseconds needed here
WaitMicroseconds(40);
_dataPin.PinMode = GpioPinDriveMode.Input;
//Delay of 10 microseconds needed here
WaitMicroseconds(10);
if (ExpectPulse(GpioPinValue.Low) == 0)
{
return(false);
}
if (ExpectPulse(GpioPinValue.High) == 0)
{
return(false);
}
// Now read the 40 bits sent by the sensor. Each bit is sent as a 50
// microsecond low pulse followed by a variable length high pulse. If the
// high pulse is ~28 microseconds then it's a 0 and if it's ~70 microseconds
// then it's a 1. We measure the cycle count of the initial 50us low pulse
// and use that to compare to the cycle count of the high pulse to determine
// if the bit is a 0 (high state cycle count < low state cycle count), or a
// 1 (high state cycle count > low state cycle count).
for (int i = 0; i < 40; ++i)
{
UInt32 lowCycles = ExpectPulse(GpioPinValue.Low);
if (lowCycles == 0)
{
return(false);
}
UInt32 highCycles = ExpectPulse(GpioPinValue.High);
if (highCycles == 0)
{
return(false);
}
_data[i / 8] <<= 1;
// Now compare the low and high cycle times to see if the bit is a 0 or 1.
if (highCycles > lowCycles)
{
// High cycles are greater than 50us low cycle count, must be a 1.
_data[i / 8] |= 1;
}
// Else high cycles are less than (or equal to, a weird case) the 50us low
// cycle count so this must be a zero. Nothing needs to be changed in the
// stored data.
}
//TIME CRITICAL_END #############
// Check we read 40 bits and that the checksum matches.
if (_data[4] == ((_data[0] + _data[1] + _data[2] + _data[3]) & 0xFF))
{
return(true);
}
else
{
//Checksum failure!
return(false);
}
}
/// <summary>
/// Initializes the RainbowHAT. It will setup all required
/// GPIO pins.
///
/// Caution:
/// This is required before accessing other
/// methods in this class.
/// </summary>
private async void InitializeAsync()
{
Logger.Log(this, "Starting InitializeAsync");
// Check if drivers are enabled
Logger.Log(this, "Checking for LightningProvider");
if (!LightningProvider.IsLightningEnabled)
{
Logger.Log(this, "LightningProvider not enabled. Returning.");
return;
}
// Aggregate provider.
LowLevelDevicesController.DefaultProvider = LightningProvider.GetAggregateProvider();
// Get default controllers.
Logger.Log(this, "Getting default controller.");
pwmController = (await PwmController.GetControllersAsync(LightningPwmProvider.GetPwmProvider()))[1];
gpioController = await GpioController.GetDefaultAsync();
i2cController = await I2cController.GetDefaultAsync();
// Ensure requiored controllers are available.
if (gpioController == null || i2cController == null || pwmController == null)
{
Logger.Log(this, "One or more controller missing.");
return;
}
// Setup controllers.
pwmController.SetDesiredFrequency(50);
// Setup LEDs.
Logger.Log(this, "Setup LEDs");
redPin = gpioController.OpenPin(GPIO_NUMBER_RED);
redPin.Write(GpioPinValue.Low);
redPin.SetDriveMode(GpioPinDriveMode.Output);
greenPin = gpioController.OpenPin(GPIO_NUMBER_GREEN);
greenPin.Write(GpioPinValue.Low);
greenPin.SetDriveMode(GpioPinDriveMode.Output);
bluePin = gpioController.OpenPin(GPIO_NUMBER_BLUE);
bluePin.Write(GpioPinValue.Low);
bluePin.SetDriveMode(GpioPinDriveMode.Output);
// Setup buttons
Logger.Log(this, "Setup buttons");
buttonAPin = gpioController.OpenPin(21);
buttonAPin.SetDriveMode(GpioPinDriveMode.Input);
buttonBPin = gpioController.OpenPin(20);
buttonBPin.SetDriveMode(GpioPinDriveMode.Input);
buttonCPin = gpioController.OpenPin(16);
buttonCPin.SetDriveMode(GpioPinDriveMode.Input);
// Setup buzzer
Logger.Log(this, "Setup buzzers / servos / motors");
buzzerPin = pwmController.OpenPin(GPIO_NUMBER_BUZZER);
buzzerPin.SetActiveDutyCyclePercentage(0.05);
// Setup timer.
Logger.Log(this, "Setup timers");
captiveButtonsValueReadTimer = ThreadPoolTimer.CreatePeriodicTimer(CaptiveButtonsValueReadTimer_Tick, BUTTON_READ_INTERVAL);
temperatureValueReadTimer = ThreadPoolTimer.CreatePeriodicTimer(TemperatureValueReadTimer_Tick, SENSOR_READ_INTERVAL);
pressureValueReadTimer = ThreadPoolTimer.CreatePeriodicTimer(PreassureValueReadTimer_Tick, SENSOR_READ_INTERVAL);
// Initialze child devices
Logger.Log(this, "Setup APA102");
apa102.Initialize(gpioController);
Logger.Log(this, "Setup BMP280");
await bmp280.InitializeAsync(i2cController);
Logger.Log(this, "Setup HT16K33");
ht16k33.Initialize(i2cController);
// Set device as intialized.
Logger.Log(this, "Finished InitializeAsync");
isInitialized = true;
}
/// <summary>
/// Performs the given action on the RainbowHAT
/// </summary>
/// <param name="action">Action to perform.</param>
public void PerformAction(RainbowHATAction action)
{
// Ensure device has been initialized.
if (!isInitialized)
{
Logger.Log(this, "Device is not initialized, yet. Retrying `PerformAction(...)` soon again.");
ThreadPoolTimer.CreateTimer((ThreadPoolTimer threadPoolTimer) => { PerformAction(action); }, TimeSpan.FromSeconds(PERFORM_ACTION_COOLDOWN_SECONDS));
return;
}
// Try perform action.
Logger.Log(this, $"PerformAction called with '{action}' action.");
switch (action)
{
case RainbowHATAction.TurnOnRed:
redPin.Write(GpioPinValue.High);
break;
case RainbowHATAction.TurnOffRed:
redPin.Write(GpioPinValue.Low);
break;
case RainbowHATAction.TurnOnGreen:
greenPin.Write(GpioPinValue.High);
break;
case RainbowHATAction.TurnOffGreen:
greenPin.Write(GpioPinValue.Low);
break;
case RainbowHATAction.TurnOnBlue:
bluePin.Write(GpioPinValue.High);
break;
case RainbowHATAction.TurnOffBlue:
bluePin.Write(GpioPinValue.Low);
break;
case RainbowHATAction.LEDsOn:
apa102.TurnOn();
break;
case RainbowHATAction.LEDsOff:
apa102.TurnOff();
break;
case RainbowHATAction.Buzz:
buzzerPin.Start();
ThreadPoolTimer.CreateTimer((ThreadPoolTimer threadPoolTimer) => { buzzerPin.Stop(); }, TimeSpan.FromMilliseconds(500));
break;
case RainbowHATAction.ShowRainbow:
apa102.ShowColors();
break;
case RainbowHATAction.ShowDemo:
redPin.Write(GpioPinValue.High);
greenPin.Write(GpioPinValue.High);
bluePin.Write(GpioPinValue.High);
apa102.ShowColors();
ht16k33.Show("Demo");
break;
default:
Logger.Log(this, $"Unknown action should be performed: {action}");
break;
}
}
private void OnBTN_Click(object sender, RoutedEventArgs e)
{
_pin21.Write(GpioPinValue.High);
}
public bool turnON()
{
// Drive the pin to low to have current flow into the LED
pin.Write(GpioPinValue.Low);
return(State());
}
private void btnGPIONo_Click(object sender, RoutedEventArgs e)
{
ledPin.Write(GpioPinValue.Low);
ledPin.SetDriveMode(GpioPinDriveMode.Output);
}
public void MoveForward()
{
_motorGpioPinA.Write(GpioPinValue.Low);
_motorGpioPinB.Write(GpioPinValue.High);
}
private static void ToggleLED()
{
LEDOn = !LEDOn;
LED?.Write(LEDOn ? GpioPinValue.High : GpioPinValue.Low);
}
// Set the orange led state
private void orangeLedState(GpioPinValue val)
{
orangeLed?.Write(val);
}
/// <summary>
/// Sets the sleep control pin to active state (sleep request).
/// </summary>
public void Sleep()
{
sleepControl.Write(SleepState.Sleeping);
}
public void StopBuzz(GpioPin pin)
{
pin.Write(GpioPinValue.Low);
}