I call my project a colorometer. It’s pretty straightforward and self explanatory.

It consists of a microcontroller (ATmega168), an Avago color sensor, a tiny LCD, a couple buttons, a power switch, and a lithium polymer battery.

To use it, you simply hold it up to something and press the button.

Right now, the LCD displays the RGB values returned from the sensor. For now, I’m trying to improve the calibration settings on the sensor to give realistic color readings.

Once those color reading values are better, I am going to add a color name lookup function so that it can display a name of the color, based on the readings for RGB.

One thing I’m quite proud of is the rechargable battery. I built a recharging circuit on the PCB so you only have to plug it in to a power supply, and it takes care of charging the battery inside.