A feature on some remote controls that automatically activates the backlight when the ambient lighting reaches a certain level. See also: backlight, ambient light, pickup sensor.
A device attached to the RCX on input Ports 1, 2, or 3 that reads values of the ambient light from 0 to 100% displaying the current value in the RCX LCD window.
A device that automatically disengages all alarms and melodies when there is no available light. Light sensors are available in some mantel clocks and wall clocks with chimes or musical movements.
Intelligently adjusts the screen brightness to match the ambient light in a room, ensuring a comfortable viewing experience. In a dim room, for example, the screen automatically reduces brightness to avoid straining your eyes.
Often used to turn infrared illuminators on or off, this device is triggered when it detects a pre-set amount of light, and helps cope with low (or no) level light conditions.