This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The AmbientLightSensor() constructor creates a new AmbientLightSensor object, which returns the current light level or illuminance of the ambient light around the hosting device.

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var ambientLightSensor = new AmbientLightSensor(options)


options Optional
Currently only one option is supported:
  • frequency: The desired number of times per second a sample should be taken, meaning the number of times per second that sensor.onreading will be called. A whole number or decimal may be used, the latter for frequencies less than a second. The actual reading frequency depends device hardware and consequently may be less than requested.


Specification Status Comment
Generic Sensor API Candidate Recommendation Defines sensors in general.
Ambient Light Sensor
The definition of 'AmbientLightSensor()' in that specification.
Candidate Recommendation

Browser compatibility

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