I started with Arduino Uno reference schematic. I learned how to re-draw the schematic, modify it, I learned how to improve it and how to do PCB layout. and by the end of the project, I learned what ...

Waveshare changes that with the R7FA4 PLUS A that clones with Arduino UNO R4 Minima, and the R7FA4 PLUS B board duplicating the Arduino UNO R4 WiFi. The Waveshare boards are not 100% clones with some ...