General • Looking for A Mega 32U4 alternative

Hi,

Im currently using a 'Pro Micro' ATMega 32u4. (Arduino Leonardo based)
This has been a great low cost board, with built in keyboard emulation as standard.

But now im looking for a new low cost board, with the same feature set but with a few more IO pins.

Would one of the RP2040 clones fit this bill. The price seems lower actually.
Whats Arduino C++ compatiblity like? Would exisiting libraries work?

Many thanks.
Dan

Statistics: Posted by DanGB — Tue Dec 09, 2025 9:39 am — Replies 2 — Views 59

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