MINI USB Nano V3.0 ATmega328P CH340G 5V 16M Micro-controller board | eBay
Amazon.com: OSEPP - STEM Kit with Printed Tutorial Booklet - No Prior Knowledge Needed for Kids Adults or Teens - Ages 10+ - Ultimate Tool for Learning Code - Works with Arduino – UNO R4 Included : Electronics
Tc277 Resolver Permanent Magnet Synchronous Motor Vector Control Microcontroller Development Board Svpwm - Switches - AliExpress
A Breadboard friendly RA-02 Breakout - Hackster.io
Sony DVP-NC615 1-684-351-11 AV-062 5-Disc DVD Player Output Circuit Board | eBay