Uno Ex and Uno Ex2 are Extended Uno Compatible Boards
Based on ATmega644P and ATmega1284

Pin to pin compatible with Arduino(r) Uno(r)

- 24 digital pins
- 8 analog pins

Preferences -> Additional Boards Managers URLs : https://master.dl.sourceforge.net/project/extended/packages/package_extended_index.json?viasf=1

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Registered

2026-06-30