The Arduino Uno-compatible board has an MCS-51 (often called 8051 instead) instead of the usual ATmega328P/ATmega168. Specifically, [ElectroBoy] uses the AT89S52.

The Arduino UNO R4 boasts a 3x performance increase over the UNO R3 and , in addition, SRAM has been upgraded from 2kB to 32kB, and flash memory from 32kB to 256kB to support more complex projects.

The vertsatile Uno Rev3 is capable of more than just a board for experimental and education projects ...

With extensive tutorials ( 20 Chapters covering over 80 topics ) + 20 DIY projects included to show you how, CleO35 ( the 3.5in display version ) allows both hobbyists and professionals alike to ...

In part 2 of the project, we get to see the guts of a more complicated NN with 3-inputs, a hidden layer with 32 nodes and 1-output, which runs on an Uno at a much slower speed of 5600 μsec.

Arduino says these additions allow for more advanced projects. Besides Wi-Fi and Bluetooth, the UNO R4 Wi-Fi has a built-in LED matrix with 96 dots arranged 12x8.

Renesas’ SVP, Chris Allexandre, said, “We are honored to collaborate with Arduino on their iconic UNO product line. Despite the challenges of this intricate project with a rich legacy, our 5V 32-bit ...