ColorHug ALS Is An Open-Source Ambient Light Sensor
Written by Michael Larabel in Hardware on 17 March 2015 at 12:43 PM EDT. 2 Comments
HARDWARE --
The ColorHug ALS is an ambient light sensor developed by Richard Hughes to dynamically control the brightness of laptop panels -- for laptops that don't have a built-in light sensor for said purpose.

The ColorHug ALS connects to systems via USB and allows for increasing the screen brightness when the room/environment is bright while dimming the screen when the area becomes darker. The ColorHug ALS is similar in hardware to Richard's ColorHug monitor calibration device, another OpenHardware USB design.


The ColorHug ALS will control the backlight when running the open-source colorhug-backlight utility.

Those wishing to learn more about the ColorHug ALS as an open-source ambient light sensor can visit Richard's blog. The device is now available for sale at £20. Currently this device only works with Linux systems and depends upon GNOME 3.14 or newer.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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