Meadow.Foundation.Sensors.Atmospheric.Th02

Th02
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Th02 sensor;

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

    sensor = new Th02(Device.CreateI2cBus());

    var consumer = Th02.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)
            {
                return (
                (result.New.Temperature.Value - old.Temperature.Value).Abs().Celsius > 0.5);
            }
            return false;
        }
    );
    sensor.Subscribe(consumer);

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

    return Task.CompletedTask;
}

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

    sensor.StartUpdating(TimeSpan.FromSeconds(1));
}

Sample project(s) available on GitHub

Wiring Example

To wire a Th02 to your Meadow board, connect the following:

Th02	Meadow Pin
GND	GND
SCL	D08 (SCL)
SDA	D07 (SDA)
VCC	3V3