Meadow.Foundation.Sensors.Environmental.Ens160 1.3.2.3-beta

Meadow.Foundation.Sensors.Environmental.Ens160

ENS160 I2C C02, Ethanol and AQI sensor

The Ens160 library is designed for the Wilderness Labs Meadow .NET IoT platform and is part of Meadow.Foundation

The Meadow.Foundation peripherals library is an open-source repository of drivers and libraries that streamline and simplify adding hardware to your C# .NET Meadow IoT application.

For more information on developing for Meadow, visit developer.wildernesslabs.co, to view all Wilderness Labs open-source projects, including samples, visit github.com/wildernesslabs

Usage

Ens160 sensor;

public override Task Initialize()
{
    Resolver.Log.Info("Initializing...");

    var i2cBus = Device.CreateI2cBus(Meadow.Hardware.I2cBusSpeed.Standard);

    sensor = new Ens160(i2cBus, (byte)Ens160.Addresses.Address_0x53);

    var consumer = Ens160.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: C02 concentration changed by threshold; new: {result.New.CO2Concentration?.PartsPerMillion:N0}ppm");
        },
        filter: result =>
        {
            if (result.Old?.CO2Concentration is { } oldCon &&
                result.New.CO2Concentration is { } newCon)
            {
                return Math.Abs((newCon - oldCon).PartsPerMillion) > 10;
            }
            return false;
        }
    );

    sensor?.Subscribe(consumer);

    if (sensor != null)
    {
        sensor.Updated += (sender, result) =>
        {
            Resolver.Log.Info($"  CO2 Concentration: {result.New.CO2Concentration?.PartsPerMillion:N0}ppm");
            Resolver.Log.Info($"  Ethanol Concentration: {result.New.EthanolConcentration?.PartsPerBillion:N0}ppb");
            Resolver.Log.Info($"  TVOC Concentration: {result.New.TVOCConcentration?.PartsPerBillion:N0}ppb");
            Resolver.Log.Info($"  AQI: {sensor.GetAirQualityIndex()}");
        };
    }

    sensor?.StartUpdating(TimeSpan.FromSeconds(2));

    return base.Initialize();
}