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Description
WVS R7FA4 PLUS B + ESP32-S3FN8R7FA4 Plus B Development Board, Based on R7FA4M1AB3CFM with ESP32 S3FN8, Compatible with Arduino UNO R4 WiFi Form Factor R7FA4 Plus B Development Board Overview R7FA4 PlUS B combines the processing power and the new peripherals of Renesas Electronics' RA4M1 microcontroller with wireless connectivity capabilities of Espressif's ESP32 S3. In addition, the board also offers onboard 12x8 LED matrix, Qwiic connectors, VRTC and OFF pins, catering to all
R7FA4 Plus B Development Board, Based on R7FA4M1AB3CFM with ESP32-S3FN8, Compatible with Arduino UNO R4 WiFi Form Factor
R7FA4 Plus B Development Board
Overview
R7FA4 PlUS B combines the processing power and the new peripherals of Renesas Electronics' RA4M1 microcontroller with wireless connectivity capabilities of Espressif's ESP32-S3. In addition, the board also offers onboard 12x8 LED matrix, Qwiic connectors, VRTC and OFF pins, catering to all potential needs for your next project.
With R7FA4 PlUS B, you can easily upgrade your project and add wireless connectivity to extend the coverage of your current setup. If this is your first project, the board has everything you need to spark your creativity.
Features
- Based on R7FA4M1AB3CFM, and is compatible with Arduino UNO R4 WiFi.
- Utilizes Renesas Electronics' RA4M1 (Arm® Cortex®-M4) microcontroller, with a main frequency of 48MHz.
- Onboard ESP32-S3 module, integrates 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, allowing the maker to use it for wireless communication. Combined with Arduino IoT Cloud, you can remotely monitor and control the projects.
- Onboard 12x8 red LED matrix, suitable for creative projects with animation or plotting sensor data, no additional hardware is required.
- Equipped with 256 kB Flash and 32 kB RAM, the expanded memory can easily handle complex projects.
- The R7FA4 Plus development board adds a 12-bit DAC, CAN bus and operational amplifiers, providing expanded functionality and flexibility for designs.
- Onboard 5V/3.3V headers for easy voltage switching, allowing the use of more expansion modules.
- Flexible power options, supporting USB-C power supply or external input power VIN (6V<=VIN<=21V).
- Onboard power indicator (PWR), USER LED, serial port receive indicator (RX), and transmit indicator (TX), making it easy to monitor the working status of the development board.
- Onboard ICSP interface, can be used as an SPI interface.
- Supports user soldering of corresponding interface insertion into the experimental board.
Specifications
| MICROCONTROLLER | R7FA4 (32-bit ARM Cortex-M4) |
|---|---|
| ESP32-S3FN8 (Dual-core 32-bit Xtensa LX7) |
|
| CLOCK FREQUENCY | R7FA4: 48MHz |
| ESP32-S3FN8: 240MHz | |
| STORAGE | R7FA4: 256kB FLASH, 32kB RAM |
| ESP32-S3FN8: 384kB ROM, 512kB RAM, 8MB Flash | |
| WIRELESS COMMUNICATION | 2.4GHz WiFi + Bluetooth LE |
| OPERATING VOLTAGE | Options for 5V/3.3V, support more shields |
| POWER INPUT | 6~24V |
| RESET BUTTON | Lateral, easier to use when connecting with shield |
| IO PIN OUTPUT CURRENT |
8mA |
| DIGITAL PINS | 14 |
| ANALOG PINS | 6 |
| DAC | 2 |
| PWM | 6 |
| UART | 1 |
| I2C | 1 |
| SPI | 1 |
| CAN | 1 |
| DC JACK | Low profile, shields won't be blocked anymore while connecting |
| POWER OUTPUT HEADER | Provides 5V OR 3.3V power output and common-grounding with other boards |
| 5V POWER OUTPUT | Up to 2000mA Max, features higher driving capability |
| EXPERIMENTAL BOARD | Support, the solder pad is provided for DIY interfaces to connect with the experimental board |
Additional Information
| Device | Development Board |
| Type | R7FA4 | Plus B |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
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Product Reviews
★★★★★ 4
Great for the house
Size: 4 Pack, Color: A-Ivory White
Good and handy. Glad I ordered.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
It really WORKS!
Size: 2 Pack, Color: A-Ivory White
They worked and just what I needed. They solved the issue I had. Thanks for a great product.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Sturdy adapter!
Size: 2 Pack, Color: A-Ivory White
Sturdy & does it’s job!
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Amazon saves the day!!!!! Again.....
Size: 4 Pack, Color: A-Ivory White
These adapters are AMAZING!!! I live in an old home and all the wall plugs are two prong. But it seems these days everything is three prong. I had no idea until I saw these on Amazon, three prong adapters even existed!!! Amazon, once again, you've saved me lots of frustration and made my life so much easier. Thank you!!!! Very sturdy. Well made. Excellent price for 4!!!!!
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Reviewed in the United States on February 2, 2026
★★★★★ 5
saved me in a house full of old outlets
Size: 4 Pack, Color: A-Ivory White
My landlord's house is really old and basically every single outlet is two prong which was an absolute nightmare for all my stuff. These little adapters just plug right in and suddenly everything works no problem, and getting 4 of them for under 10 bucks is a genuinely great deal. They feel sturdy enough that I don't worry about them coming loose and they don't stick out too far from the wall either.
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Reviewed in the United States on April 4, 2026