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Meadow.Foundation.Grove.Sensors.Sound.SoundSensor

SoundSensor
StatusStatus badge: working
Source codeGitHub
NuGet packageNuGet Gallery for Meadow.Foundation.Grove.Sensors.Sound.SoundSensor

Code Example

SoundSensor sensor;

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

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

var consumer = SoundSensor.CreateObserver(
handler: result => Resolver.Log.Info($"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) =>
{
Resolver.Log.Info($"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();
Resolver.Log.Info($"Initial read: {result.Millivolts:N2}mV");

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

Sample project(s) available on GitHub

Wiring Example

LoudnessSensorMeadow Pin
GNDGND
VCC3.3V
RXD01
TXD00