If you want a more integrated alternative using ATMEGA32U4 (with pictures, ... Recommended Arduinos. Arduino UNO R3 or clone (Uno R4 is not supported) Arduino NANO v3 (ATmega328) or clone; Arduino ...

The Arduino Leonardo is a microcontroller that features an ATmega32u4 microcontroller and USB connection. It comes with 20 digital input/output pins, 12 analog inputs, and a 16MHz crystal oscillator.

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

It's like a shrunken version of the Arduino Leonardo as it features the same ATmega32U4 microcontroller, micro-USB port, and pinouts. It also operates at 5V and requires an external supply of 7 to ...

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 ...

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 ...