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

April Fools’ Day may have passed, but we really had to check the calendar on this hack. [Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno.

Previously we have done a comprehensive comparison between the Arduino Uno R3 and Arduino Uno R4 with the main focus on the hardware specifications and features of each board. In this article, we will ...

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 ...

Arduino UNO R4 Minima (store / docs) - base version. Arduino UNO R4 WiFi ( store / docs ) - version with a Wi-Fi/Bluetooth module (ESP32) and a 12x8 LED matrix. This major change will introduce many ...

After the Arduino GIGA R1 and the Portenta C33, the latest announcement in the Arduino new-board frenzy is the Arduino UNO R4. Expected to be available late May 2023, the UNO R4 is the long-awaited ...

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 ...

Last year, after 13 years of Arduino Uno’s release, they released the all new Arduino Uno R4 with more powerful hardware. Even though the Uno R4 is hardware compatible with the original Uno, people ...