Meadow.Foundation.Sensors.Motion.Lsm303agr 1.2.1.11-beta

Meadow.Foundation.Sensors.Motion.Lsm303agr

Lsm303agr I2C 6-axis accelerometer and magnetometer

The Lsm303agr 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 of Wilderness Labs open-source projects, including samples, visit github.com/wildernesslabs

Usage

Lsm303agr sensor;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize hardware...");
    sensor = new Lsm303agr(Device.CreateI2cBus());

    // classical .NET events can also be used:
    sensor.Updated += HandleResult;

    // Example that uses an IObservable subscription to only be notified when the filter is satisfied
    var consumer = Lsm303agr.CreateObserver(handler: result => HandleResult(this, result),
                                         filter: result => FilterResult(result));

    sensor.Subscribe(consumer);

    sensor.StartUpdating(TimeSpan.FromMilliseconds(2000));

    return base.Initialize();
}

bool FilterResult(IChangeResult<(Acceleration3D? Acceleration3D, MagneticField3D? MagneticField3D)> result)
{
    return result.New.Acceleration3D.Value.Z > new Acceleration(0.1, Acceleration.UnitType.Gravity);
}

void HandleResult(object sender,
    IChangeResult<(Acceleration3D? Acceleration3D,
    MagneticField3D? MagneticField3D)> result)
{
    var accel = result.New.Acceleration3D.Value;
    var mag = result.New.MagneticField3D.Value;

    Resolver.Log.Info($"AccelX={accel.X.Gravity:0.##}g, AccelY={accel.Y.Gravity:0.##}g, AccelZ={accel.Z.Gravity:0.##}g, MagX={mag.X.Gauss:0.##}gauss, MagY={mag.Y.Gauss:0.##}gauss, MagZ={mag.Z.Gauss:0.##}gauss");
}