Arduino UNO R4 WiFi, Leonardo & Nano ESP32 Dev Boards USB WiFi 32KB RAM

About this deal

This is a job lot listing of three distinct used Arduino development boards. The Arduino UNO R4 WiFi is the most capable of the three: it merges the RA4M1 microprocessor from Renesas with the ESP32-S3 from Espressif , giving it 256 KB of flash and 32 KB of SRAM, with a 48 MHz clock speed that is 3x faster than its predecessors. It also includes a built-in 12x8 red LED matrix ideal for animations or plotting sensor data and is designed to be compatible with shields made for the Arduino UNO R3. The Arduino Leonardo is an older 8-bit board where the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor, and allows the board to appear to a connected computer as a mouse and keyboard. The Arduino Nano ESP32 is a compact board featuring the NORA-W106 module with an ESP32-S3 chip inside, supporting both Wi-Fi and Bluetooth 5.0 , and supports both Arduino and MicroPython programming. --- This used job lot includes three Arduino development boards suited to makers, hobbyists and students at different stages. The UNO R4 WiFi is the standout piece, pairing a 48 MHz Renesas RA4M1 Arm Cortex-M4 processor with an ESP32-S3 co-processor for built-in WiFi and Bluetooth, 32 KB SRAM, 256 KB flash, and an onboard 12x8 red LED matrix, all in the standard UNO form factor with full R3 shield compatibility. The Leonardo uses an ATmega32u4 with native USB, allowing it to act as a keyboard or mouse without additional hardware. The Nano ESP32 packs an ESP32-S3 into the compact Nano footprint with WiFi, Bluetooth 5.0, and support for both Arduino C++ and MicroPython, making it well suited to IoT and space-constrained projects.