Meadow.Foundation.Sensors.Atmospheric.Hc2 1.4.0.6-beta

Meadow.Foundation.Sensors.Atmospheric.Hc2

HC2 Analog and Serial humidity and temperature probe

The Hc2 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

HC2 sensor;

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

    // Analog
    //sensor = new HC2(Device.Pins.A00, Device.Pins.A01);

    // Serial
    sensor = new HC2(Device, Device.PlatformOS.GetSerialPortName("COM4"));

    var consumer = HC2.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Temp changed by threshold; new Temp: {result.New.Temperature?.Celsius:N2} °C, old: {result.Old?.Temperature?.Celsius:N2} °C");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                if (result.New.Temperature.HasValue && old.Temperature.HasValue)
                    return ((result.New.Temperature.Value - old.Temperature.Value).Abs().Celsius > 0.5);
            }
            return false;
        }
    );
    sensor.Subscribe(consumer);

    sensor.Updated += (sender, result) =>
    {
        Resolver.Log.Info($"Relative Humidity: {result.New.Humidity?.Percent:N2} %, Temperature: {result.New.Temperature?.Celsius:N2} °C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    Resolver.Log.Info($"Initial Read:");
    var conditions = await sensor.Read();
    Resolver.Log.Info($"Relative Humidity: {conditions.Humidity?.Percent:N2} %, Temperature: {conditions.Temperature?.Celsius:N2} °C");

    sensor.StartUpdating(TimeSpan.FromSeconds(5));
}

How to Contribute

• Found a bug? Report an issue
• Have a feature idea or driver request? Open a new feature request
• Want to contribute code? Fork the Meadow.Foundation repository and submit a pull request against the develop branch

Need Help?

If you have questions or need assistance, please join the Wilderness Labs community on Slack.