Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

arduino-uno-mqtt creating a simple project where two Arduino Uno R3 boards communicate wirelessly using the nRF24L01 modules. Let's create a simple project where two Arduino Uno R3 boards communicate ...

This project demonstrates how to control an Arduino's LED through a Node.js server and synchronize the Arduino's RX and TX LEDs with a virtual representation in Unity. By using a serial connection to ...

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

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.

Arduino will continue to make available the Arduino UNO R3 and provide support to all those Arduino enthusiasts that have and would like to create projects using its 8-bit AVR microcontroller.

The Arduino UNO R4, featuring the Renesas RA4M1 (Arm Cortex-M4) running at 48MHz, boasts a 3x performance increase over the UNO R3. Additionally, SRAM has been upgraded from 2kB to 32kB, and flash ...

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.