Remarks

Hcsens0040
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

The HCSENS0040 is a microwave motion detector commonly found on the RCWL-0516 board. It detects relative motion using the doppler effect. It uses a single GPIO pin to notify Meadow when motion is detected.

Code Example

Hcsens0040 sensor;

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

    sensor = new Hcsens0040(Device.CreateDigitalInputPort(Device.Pins.D05));
    sensor.OnMotionDetected += Sensor_OnMotionDetected;

    return Task.CompletedTask;
}

private void Sensor_OnMotionDetected(object sender)
{
    Resolver.Log.Info($"Motion detected {DateTime.Now}");
}

Sample project(s) available on GitHub

Wiring Example

To wire a Hcsens0040 to your Meadow board, connect the following:

Hcsens0040	Meadow Pin
GND	GND
TriggerOut	D05
VCC	3V3

Characteristic	Locus
Inheritance	System.Object > Hcsens0040
Namespace	Meadow.Foundation.Sensors.Motion
Assembly	Hcsens0040.dll

Syntax

public class Hcsens0040 : object

Constructors

Hcsens0040(IDigitalInputPort)

Create a new Parallax PIR object connected to a interrupt port.

Declaration

public Hcsens0040(IDigitalInputPort digitalInputPort)

Parameters

Type	Name	Description
IDigitalInputPort	digitalInputPort

Hcsens0040(IPin)

Create a new Parallax PIR object connected to an input pin and IO Device.

Declaration

public Hcsens0040(IPin inputPin)

Parameters

Type	Name	Description
IPin	inputPin	The input pin

Events

OnMotionDetected

Event raised when motion is detected.

Declaration

public event Hcsens0040.MotionChange OnMotionDetected

Event Type

Type	Description
Hcsens0040.MotionChange