static async Task Main(string[] args)
{
Console.WriteLine("Hello Bme280!");
//bus id on the raspberry pi 3
const int busId = 1;
//set this to the current sea level pressure in the area for correct altitude readings
const double defaultSeaLevelPressure = 1033.00;
var i2cSettings = new I2cConnectionSettings(busId, Bme280.DefaultI2cAddress);
var i2cDevice = new UnixI2cDevice(i2cSettings);
var i2CBmpe80 = new Bme280(i2cDevice);
using (i2CBmpe80)
{
while (true)
{
////set mode forced so device sleeps after read
i2CBmpe80.SetPowerMode(PowerMode.Forced);
//set samplings
i2CBmpe80.SetTemperatureSampling(Sampling.UltraLowPower);
i2CBmpe80.SetPressureSampling(Sampling.UltraLowPower);
//read values
Temperature tempValue = await i2CBmpe80.ReadTemperatureAsync();
Console.WriteLine($"Temperature {tempValue.Celsius}");
double preValue = await i2CBmpe80.ReadPressureAsync();
Console.WriteLine($"Pressure {preValue}");
double altValue = await i2CBmpe80.ReadAltitudeAsync(defaultSeaLevelPressure);
Console.WriteLine($"Altitude: {altValue}");
Thread.Sleep(1000);
//set higher sampling
i2CBmpe80.SetTemperatureSampling(Sampling.LowPower);
Console.WriteLine(i2CBmpe80.ReadTemperatureSampling());
i2CBmpe80.SetPressureSampling(Sampling.UltraHighResolution);
Console.WriteLine(i2CBmpe80.ReadPressureSampling());
//set mode forced and read again
i2CBmpe80.SetPowerMode(PowerMode.Forced);
//read values
tempValue = await i2CBmpe80.ReadTemperatureAsync();
Console.WriteLine($"Temperature {tempValue}");
preValue = await i2CBmpe80.ReadPressureAsync();
Console.WriteLine($"Pressure {preValue}");
altValue = await i2CBmpe80.ReadAltitudeAsync(defaultSeaLevelPressure);
Console.WriteLine($"Altitude: {altValue}");
Thread.Sleep(5000);
//set sampling to higher
i2CBmpe80.SetTemperatureSampling(Sampling.UltraHighResolution);
Console.WriteLine(i2CBmpe80.ReadTemperatureSampling());
i2CBmpe80.SetPressureSampling(Sampling.UltraLowPower);
Console.WriteLine(i2CBmpe80.ReadPressureSampling());
}
}
}