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

This repository contains the implementation of a Digital Number Display using an Arduino Uno and a 7-segment display simulated in Proteus. The project demonstrates how to control a 7-segment display ...

Both the Arduino Nano and Uno can be powered via their integrated USB connectors. This automatically supplies regulated 5V power to the board, allowing you to use any USB-supported power source ...

ArduPico with Raspberry Pi Pico board. WisdPi ArduPico is an Arduino UNO-shaped baseboard designed for the Raspberry Pi Pico and compatible boards that enables makers to reuse most 3.3V Arduino ...

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 ...