Meadow.Foundation.Grove.Sensors.Sound.SoundSensor 1.3.2.1-beta

Meadow.Foundation.Grove.Sensors.Sound.SoundSensor

Grove sound sensor

The SoundSensor 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

SoundSensor sensor;

public override Task Initialize()
{
    Console.WriteLine("Initialize...");

    // configure our sensor
    sensor = new SoundSensor(Device.Pins.A01);

    var consumer = SoundSensor.CreateObserver(
        handler: result => Console.WriteLine($"Observer filter satisfied: {result.New.Millivolts:N2}mV, old: {result.Old?.Millivolts:N2}mV"),
        filter: result =>
        {
            if (result.Old is { } old)
            { //c# 8 pattern match syntax. checks for !null and assigns var.
                return (result.New - old).Abs().Millivolts > 500;
            }
            return false;
        });
    sensor.Subscribe(consumer);

    sensor.Updated += (sender, result) =>
    {
        Console.WriteLine($"Voltage Changed, new: {result.New.Millivolts:N2}mV, old: {result.Old?.Millivolts:N2}mV");
    };

    return Task.CompletedTask;
}

public override async Task Run()
{
    var result = await sensor.Read();
    Console.WriteLine($"Initial read: {result.Millivolts:N2}mV");

    sensor.StartUpdating(TimeSpan.FromMilliseconds(1000));
}