Arduino UNO R4 WiFi ABX00162 Single Board Computer Development Board
Arduino UNO R4 WiFi Single Board Computer (ABX00162)
The Arduino UNO R4 WiFi is a powerful single board computer that blends the classic UNO form factor with a modern Renesas RA4M1 microcontroller and an onboard ESP32-S3 module for WiFi and Bluetooth connectivity. Designed for IoT prototyping, it offers enhanced processing, expanded memory, and seamless wireless communication, making it a direct drop-in upgrade for existing UNO projects.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller | Renesas RA4M1 (Arm Cortex-M4) |
| Clock Speed | 48 MHz |
| SRAM / Flash | 256 KB / 1 MB |
| Connectivity | ESP32-S3 module (WiFi 802.11 b/g/n, Bluetooth 5.0) |
| USB | USB-C for programming and power |
| I/O Pins | 14 digital, 6 analog, 3.3-5V logic tolerant |
What You Can Build With This
- WiFi-enabled weather station with cloud data logging
- Home automation system with Bluetooth and smartphone control
- Wireless robot or drone using the ESP32-S3 for low-latency control
- IoT sensor network bridging to MQTT or web dashboards
Compatibility
Fully compatible with the Arduino UNO pinout and most existing shields. The RA4M1 operates at 5V, ensuring legacy shields work out of the box. Programming is done via USB-C using the Arduino IDE 2.0 or higher. Also compatible with ESP32-S3 firmware for standalone wireless applications.
Wiring Notes
For basic use, connect via USB-C to your computer for programming and power. External power (7-12V) can be supplied to the barrel jack. No additional wiring is required for WiFi/Bluetooth—the ESP32-S3 is internally connected. When driving external loads, respect the per-pin current limit of 8mA and total board limit of ~200mA from the 5V rail.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with the Arduino IDE?
Yes, the Arduino UNO R4 WiFi is officially supported in Arduino IDE 2.0 and newer, with all necessary board files available via the Boards Manager.
Can I use standard UNO shields with this board?
Absolutely. The UNO R4 maintains the same 5V logic level and pin headers as the classic Uno, so shields for servo control, LCD, and sensors work without modification.
Does the WiFi need an external antenna?
No. The ESP32-S3 module includes an integrated PCB antenna that provides reliable wireless connectivity for typical indoor and short-range outdoor use.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items