Remarks

Veml
Status
Source code	GitHub
NuGet package

The TEMT6000 is an I2C ambient light sensor.

Code Example

public class MeadowApp : App<F7Micro, MeadowApp>
{
    Veml7700 _veml;

    public MeadowApp()
    {
        var bus = Device.CreateI2cBus();
        using (_veml = new Veml7700(bus))
        {

            _veml.ChangeThreshold = 10;
            _veml.LuxChanged += OnLightChanged;

            while (true)
            {
                Thread.Sleep(5000);
            }
        }
    }

    private void OnLightChanged(float previousValue, float newValue)
    {
        Console.WriteLine($"Light: {_veml.Lux} lux");
    }
}

Sample projects available on GitHub

Wiring Example

To wire a Veml7700 to your Meadow board, connect the following:

Veml7700	Meadow Pin
3V3	3V3
GND	GND
SCK	D08
SDA	D07

It should look like the following diagram:

Characteristic	Locus
Inheritance	System.Object > Veml7700
Implements	System.IDisposable
Inherited Members	System.Object.ToString() System.Object.Equals(System.Object) System.Object.Equals(System.Object, System.Object) System.Object.ReferenceEquals(System.Object, System.Object) System.Object.GetHashCode() System.Object.GetType() System.Object.MemberwiseClone()
Namespace	Meadow.Foundation.Sensors.Light
Assembly	Veml7700.dll

Syntax

public class Veml7700 : IDisposable

Constructors

Veml7700(II2cBus)

Declaration

public Veml7700(II2cBus bus)

Parameters

Type	Name	Description
II2cBus	bus

Properties

Address

Declaration

public byte Address { get; }

Property Value

Type	Description
System.Byte

ChangeThreshold

Declaration

public int ChangeThreshold { get; set; }

Property Value

Type	Description
System.Int32

DataSource

Declaration

public Veml7700.LightSensor DataSource { get; set; }

Property Value

Type	Description
Veml7700.LightSensor

Lux

Reads the value of white light channel

Declaration

public float Lux { get; }

Property Value

Type	Description
System.Single

Methods

Dispose()

Dispose managed resources

Declaration

public void Dispose()

Dispose(Boolean)

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

Events

LuxChanged

Declaration

public event Veml7700.ValueChangedHandler LuxChanged

Event Type

Type	Description
Veml7700.ValueChangedHandler