private async void MeasureTimerTick(object sender, object e)
{
// read Temperature
double temperature = await bme280Sensor.ReadTemperature();
double humidity = await bme280Sensor.ReadHumidity();
double pressure = await bme280Sensor.ReadPressure();
float altitude = await bme280Sensor.ReadAltitude(seaLevelPressure);
// convert to Fahrenheit
//double fahrenheitTemperature = temperature * 1.8 + 32.0; // hhe
// read Proximity
//int proximity = vncl4010Sensor.ReadProximity(); //hhe
//TemperatureStatus.Text = "The temperature is currently " + fahrenheitTemperature.ToString("n1") + "°F"; //hhe
Location.Text = webApiClient.device.Location;
DeviceName.Text = webApiClient.device.Name;
X.Text = webApiClient.device.X;
Y.Text = webApiClient.device.Y;
Z.Text = webApiClient.device.Z;
TemperatureStatus.Text = "The temperature is currently " + temperature.ToString("n1") + "°C";
HumidityStatus.Text = "The humidity is currently " + humidity.ToString("n1") + "%";
PressureStatus.Text = "The pressure is currently " + pressure.ToString("n1") + "";
Altitude.Text = "The altitude is currently " + altitude.ToString("n1") + " meters";
await webApiClient.PutDevice(X.Text, Y.Text, Z.Text, temperature, humidity, pressure);
}
private async void TakeReadingAsync(object sender, object e)
{
// Create variables to store the sensor data: temperature, pressure, humidity and altitude.
var temperatureReadings = new List <float>();
var pressureReadings = new List <float>();
var altitudeReadings = new List <float>();
var humidityReadings = new List <float>();
// Read 10 samples of the data
for (int i = 0; i < 10; i++)
{
temperatureReadings.Add(await _BME280.ReadTemperature());
pressureReadings.Add(await _BME280.ReadPressure());
altitudeReadings.Add(await _BME280.ReadAltitude());
humidityReadings.Add(await _BME280.ReadHumidity());
}
// Create a WeatherData object which will hold the
// average of the 10 samples for each attribute.
WeatherData weatherReading = new WeatherData
{
RecordingTime = DateTime.Now.ToUniversalTime(),
Temperature = temperatureReadings.Average(),
Humidity = humidityReadings.Average(),
Pressure = pressureReadings.Average(),
Altitude = altitudeReadings.Average()
};
// Send to console for debugging purposes
Debug.WriteLine(weatherReading.ToString());
// Send the reading to the event hub
await _weatherDataSender.SendDataJsonUtf8Async(weatherReading);
}
private static void SensorTimerTick(object state)
{
// Write sensor data to output / immediate window
Debug.WriteLine("Temperature..: " + bme.ReadTemperature().ToString("00.0") + "C");
Debug.WriteLine("Humidity.....: %" + bme.ReadHumidity().ToString("00.0" + "RH"));
Debug.WriteLine("Pressure.....: " + bme.ReadPressure().ToString(".0") + "Pa");
Debug.WriteLine("Altitude.....: " + bme.ReadAltitude(slp).ToString(".0") + "m");
Debug.WriteLine("-----");
}
private void _timer_Tick(object sender, object e)
{
var temp = _bme280.ReadTemperature();
var humidity = _bme280.ReadHumidity();
var pressure = _bme280.ReadPressure();
var altitude = _bme280.ReadAltitude(seaLevelPressure);
if (temp.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
{
Debug.WriteLine("Temp: {0} deg C", temp.Result);
this.t_temp.Text = temp.Result.ToString();
SendDeviceToCloudMessagesAsync(temp.Result, "Temp");
}
else
{
Debug.WriteLine("Temp: {0} deg C", temp.Status);
this.t_temp.Text = temp.Status.ToString();
}
if (humidity.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
{
Debug.WriteLine("Humidity: {0} %", humidity.Result);
this.t_hum.Text = humidity.Result.ToString();
SendDeviceToCloudMessagesAsync(humidity.Result, "Humidity");
}
else
{
Debug.WriteLine("Humidity: {0} %", humidity.Status);
this.t_hum.Text = humidity.Status.ToString();
}
if (pressure.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
{
Debug.WriteLine("Pressure: {0} Pa", pressure.Result);
this.t_pres.Text = pressure.Result.ToString();
SendDeviceToCloudMessagesAsync(pressure.Result, "Pressure");
}
else
{
Debug.WriteLine("Pressure: {0} Pa", pressure.Status);
this.t_pres.Text = pressure.Status.ToString();
}
if (altitude.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
{
Debug.WriteLine("Altitude: {0} m", altitude.Result);
this.t_alt.Text = altitude.Result.ToString();
SendDeviceToCloudMessagesAsync(altitude.Result, "Altitude");
}
else
{
Debug.WriteLine("Altitude: {0} m", altitude.Status);
this.t_alt.Text = altitude.Status.ToString();
}
}
static void Main(string[] args)
{
MMALCamera cam = MMALCamera.Instance;
// Create observable that will generate an incrementing number every second
var observable = Observable.Generate(1, x => true, x => x + 1, x => x, x => TimeSpan.FromSeconds(1));
var relay = OutputPort.Create(17, OutputPort.InitialValue.Low).Result;
var light1 = OutputPort.Create(27, OutputPort.InitialValue.Low).Result;
var light2 = OutputPort.Create(22, OutputPort.InitialValue.Low).Result;
var button = InputPort.Create(24, GpioEdge.Both).Result;
// Write true whenever the number is even and odd when the number is odd
using (var imgCaptureHandler = new ImageStreamCaptureHandler("/home/pi/images/", "jpg"))
using (observable.Select(x => x % 2 == 0).Subscribe(relay))
using (observable.Select(x => x % 2 == 0).Subscribe(light1))
//using (observable.Select(x => x % 2 != 0).Subscribe(light2))
//using (button.Do(pressed => Console.WriteLine(pressed)).Subscribe())
using (button.Subscribe(light2))
using (var i2cBus = new I2CBusPI("/dev/i2c-1"))
{
var takePictureTask = cam.TakePicture(imgCaptureHandler, MMALEncoding.JPEG, MMALEncoding.I420);
var i2cDevice = new I2CDevicePI(i2cBus, Display.DefaultI2CAddress);
var sensor = new BME280Sensor(i2cBus, 1014);
var display = new SSD1306.Display(i2cDevice, 128, 64);
display.Init();
var dfont = new AdafruitSinglePageFont();
for (int i = 0; i < 100; i++)
{
display.WriteLineBuff(dfont, $"Temperature: {sensor.ReadTemperature().Result} °C", $"Pressure: {sensor.ReadPressure().Result} Pa", $"Humidity: {sensor.ReadHumidity().Result} %", $"Altitude: {sensor.ReadAltitude().Result} m", "Line 5", "Line 6", "Line 7", "Line 8");
display.DisplayUpdate();
}
//for (int i = 0; i < 100; i++)
// display.DrawPixel(i, i);
takePictureTask.Wait();
display.ClearDisplay();
}
// releasing relay
relay.Write(true);
// turning of light
light1.Write(false);
light2.Write(false);
// Cleanup disposes all unmanaged resources and unloads Broadcom library. To be called when no more processing is to be done
// on the camera.
cam.Cleanup();
}