Pandauino Narrow Boards Features ATmega644/1284-based boards
https://www.electronics-lab.com/pandauino-narrow-boards-features-atmega644-1284-based-boards/
644 Narrow and 1284 Narrow are small, simple, ATmega644/1824-based boards, which are designed to improve small footprint Arduino projects. The Narrow board enables two to eight times more flash and RAM resources and ten more digital I/O as compared to an Uno/Nano, plus total compatibility. The Catalonian maker Thierry Guennou claims: “they are the smallest ever breadboard-compatible […]