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WeAct RA4M1 - A small board with plenty of GPIOs that's software-compatible with the Arduino UNO R4
(www.cnx-software.com)
Everything microcontrollers: projects, questions, new releases, etc.
dragontamer's Beginner Guides:
Beginner Series I: What is a Microcontroller?
Beginner Series II: The "Generic" Microcontroller
Beginner Sidenote: Microchip's Signal Chain Design Guide
Beginner Series III: Skills and Complexity Tiers
Beginner Series IV: Deep Dive into Microchip's AVR EA
This looks like a fun device for $0.99
Fun sized… oh wait no…