We've just rolled out a whole new range of tiny functional modules to make it really easy to expand your projects. First came the AM3X 3-Axis Accelerometer Module, and now the LIGHT Light Sensor Module has also landed. This module is amazingly small:
Well, it may not look small when it's blown up so large, but keep in mind that the connection headers are on 0.1" centers! The whole board is about the size of a fingernail. The TEMT6000 sensor is a very reliable and consistent device, unlike a typical light-dependent resistor (LDR) that can vary with temperature and between different units. The TEMT6000 comes pre-calibrated so if you put a bunch of them in the same lighting conditions, you'll get the same value coming out of all of them. Brilliant.
To see how easy it is to use with an Arduino, check out the Light Sensor Module Quickstart Guide.