.. highlight:: swift

AmbientLightLTR329
==================

This specific ambient light sensor is configured via properties on the `MBLAmbientLightLTR329 <https://www.mbientlab.com/docs/metawear/ios/latest/Classes/MBLAmbientLightLTR329.html>`_ class.  This section shows how to use its advanced features.

Periodic Readings
-----------------

This ambient light sensor has a built in timer, so you can program it directly to return periodic data.

::

    ambientLightLTR329.gain = .gain1X;
    // Have the sensor measure over 100ms
    ambientLightLTR329.integrationTime = .integration100ms;
    // Perform a new measurement each second
    ambientLightLTR329.measurementRate = .rate1000ms;
    ambientLightLTR329.periodicIlluminance.startNotificationsAsync(handler: { (obj, error) in
        if let obj = obj {
            print("ambient light: \(obj.value.doubleValue) lux")
        }
    })