The controlling chip — an Arduino, in this case — can read the intensity of the selected color. The TCS230 uses a 4 x 4 array of photodiodes, along with a Bayer filter.

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very ...

[Rick] chose an Arduino to do all the heavy lifting for the light sensor and activating the LEDs. After a few tests [Rick] got his color sensor working, but it’s not up to par with what he had ...