Arduino has shrunk the UNO R4 with the Arduino Nano R4 board equipped with the same 48 MHz Renesas RA4M1 32-bit Arm ...

Decorative lighting has become quite popular, with options such as LED surface panels, strip lights, COB lights, spotlights, ...

Building on that concept, the next objective was to create an even smaller FM radio compact enough to fit inside an earbud.