He used an Arduino, and multiplexed RGB LEDs with some digital potentiometers ... color mixing capabilities of the digital potentiometer. With your LEDs and buttons working, you can grab the ...

This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

[Steve] from Hackshed did just this: he integrated an Arduino based webserver into a new network controllable RGB lamp. What makes this lamp unique is that the RGB LED bar comes from an old Epson ...