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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:
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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]
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4.1 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Mostly great, except one little annoyance
Color: Black&Silver, Color: Black&Silver
Pros- lightweight, small, very accurate, easy to clean, timer included.
Cons- I use this to brew espresso on my Breville Touch and to get an accurate reading, you have to place something flat (structured) under the scale. Otherwise the reading just jumps all over the place. I know lot of espresso machines have the same base, so this might be an issue for some!
This is my reason for 4/5 stars. It’s an easy fix, it’s just kind of annoying. Value for the price seems to be on point. It’s easy to clean. It has a timer as well as scale (nice for espresso). Buttons work the first time you push them.
That’s it that’s all
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Great Coffee at Home with Beautiful Design!
Color: Beige, Color: Beige
Absolutely love this espresso machine! It’s easy to use, heats up quickly, and makes rich, flavorful coffee with nice crema. The milk frother works great for lattes and cappuccinos, and the design looks beautiful on my countertop. Great value for the price — highly recommend!
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Good option 👌
Color: Silver
The Neretva Máquina de café expreso de 20 bares stands out for its compact and elegant stainless steel design, making it ideal for anyone who wants to prepare barista-style coffee at home. Its 20-bar pressure system delivers rich espresso with excellent aroma and crema, while the steam wand allows you to create smooth and consistent milk foam for lattes and cappuccinos. The LED display and practical size make it a modern, functional, and user-friendly option for everyday use.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Great little espresso machine for home
Color: Silver
I purchased this as a test case for home latte making. Considering the price, it is an excellent starter machine. The learning curve is not very dramatic and it is relatively easy to maintain. Unit is attractive and build quality is very good. Be sure to use filtered water. I have been using it regularly for months now and it has proved reliable. This has a very small footprint and would fit on most countertops. If you are looking for a starter espresso maker, this is a great option until you want to get really serious.
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Pretty good machine!
Color: Silver
I’ve had the machine for about a month now and I like it! There is a learning curve but once you figure it out it’s pretty easy to use.
For reference: I make a double latte every morning. I use 150 mLs of oat milk and froth/steam the milk for about 40-45 seconds. I refill the water tank weekly.
Star deduction because the manual that comes with the machine isn’t great. The FAQ table is ambiguous and the entire manual is poorly written.
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Reviewed in the United States on April 23, 2026