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.

It's important to have a grasp of how to read Arduino resistors, as they're useful for controlling the current in an electrical circuit.

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

This isn’t about connecting a temperature sensor in your Arduino. This build is about using the temperature sensor in your clock.