Each RGB LED has three LEDs inside the ... walk through the code for the Arduino, make the PC board, cut a custom wall plate, and install the lock strike.

For prototyping, Infineon has a RGB LED lighting control shield for Arduino, based around its ARM Cortex-M0 XMC1202 microcontroller. On board is something called a ‘brightness colour control unit’ ...

If you’d like to get more specific, Michael Klements’ Arduino-based scanner lets you ... along with a 16×2 panel. An optional RGB LED attempts to copy the shade of whatever object you ...