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commons/arduino-nano

Uno's brain on a 18 × 45 mm breadboard-friendly stick. Same ATmega328P, mini-USB, no barrel jack.

v3.0.0atmega328p$6.20 BOM40m buildCC-BY-SA-4.0updated 2 days ago
Remix

The Uno compressed onto a DIP-width board that drops straight into a breadboard.

Same ATmega328P, same 5 V logic, same sketch compatibility — the differences are physical: mini-USB instead of USB-B, no barrel jack, and two extra analog inputs (A6, A7) that the Uno does not break out.