He uses an Arduino Uno to control them, and a 460W computer power supply to provide the juice. The LED modules themselves are Adafruit RGB pixel strings. There’s actually three of the LED ...

The availability of cheap, high-efficiency LED modules helps add additional lighting ... The hardware is as barebones as possible, consisting of an Arduino Nano, linear regulator, power MOSFET ...

Connector to add external battery to real-time clock (RTC) inside Renesas MCU (MCU RTC power pad held to 5V rail on Minima) Secondary (wireless) processor: 240MHz 3.3V dual core 32bit Espressif ...