The Arduino Nano and Uno are equipped with very similar processors (the chip that essentially serves as the brain of the board). The Nano features an ATmega328, while the Uno sports an ATmega328P.

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 Uno R3, with its 8-bit ATmega328P processor, has been a long-time favorite. But now, the Uno R4 is here to give a boost to your projects. Featuring a 48-MHz, 32-bit Cortex-M4 processor, abundant ...

Arduino UNO R4 WiFi. Arduino UNO R4 specifications: Microcontroller – Renesas RA4M1 Arm Cortex-M4F MCU @ 48 MHz with 32KB SRAM, 256KB flash; Wireless (Arduino UNO R4 WiFi only) – ESP32-S3-MINI-1 ...

This leap forward starts with a new processor by Renesas, a global leader in microcontrollers, analog, power and SoC products. While over 10 million users have enjoyed playing and working with Arduino ...