R7FA4 PLUS A Development Board (UNO R4 Minima Compatible)

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Sale price £14.20
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The R7FA4 Plus A development board is based on the same R7FA4M1 32-bit microprocessor the Arduino UNO R4 Minima and uses a similar board style and layout.

The RA4M1 provides increased processing power, expanded memory, and additional peripherals. It is based on the Arm® Cortex®-M4 processor, with a main operating frequency of 48MHz. The board also features 256 kB of Flash and 32 kB of RAM.

The board features 5V/3.3V headers that make voltage adjustments easier, accommodating a wider selection of expansion modules. It offers flexible power options, including a USB-C port and an external power input supporting 6V to 24V, providing versatility in power management. For ease of monitoring and troubleshooting, the board includes a power indicator LED, a user LED, and LEDs for serial communication signals (RX and TX).

Additionally, there is a 12-bit DAC, CAN bus, and operational amplifier. It also has an onboard ICSP interface that can be utilised as an SPI interface and supports the soldering of additional interfaces for those looking to tailor the board to specific project needs. A USB-C cable is included.

We also stock the PLUS B version!


  • Based on R7FA4M1AB3CFM, compatible with the Arduino UNO R4 Minima
  • Renesas Electronics' RA4M1 (Arm® Cortex®-M4) microcontroller
  • Equipped with 256 kB Flash and 32 kB RAM
  • 12-bit DAC
  • CAN bus
  • Operational amplifiers
  • 5V/3.3V headers for easy voltage switching
  • Flexible power options, supporting USB-C power supply or external input power VIN (6V<=VIN<=24V)
  • Onboard power indicator LED (PWR), USER LED, serial port receive indicator LED (RX), and transmit indicator LED (TX)
  • Onboard ICSP interface

What's on Board

  1. R7FA4M1AB3CFM
  2. AMS1117-3.3
    3.3V voltage regulator
  3. MP8759
    5V voltage regulator
  4. Arduino interface
    Compatible with standard Arduino interface
  5. ICSP interface
  6. Power output header
    3.3V or 5V, voltage level configured by the onboard power configuration switch, used as power output and common-grounding with other boards
  7. Power Configuration
    For configuring R7FA4 PLUS A operating voltage
  8. SWD indicator
  9. Power indicator
  10. User LED
  11. USB Type-C connector
    For uploading program or serial port debugging
  12. Serial port RX/TX indicators
  13. DC input
    6V ~ 24V
  14. Reset button


Microcontroller R7FA4 (32-bit ARM Cortex-M4)
Clock Frequency R7FA4: 48MHz
Storage R7FA4: 256kB Flash, 32kB RAM
Wireless Communication None
Operating Voltage Options for 5V/3.3V, support more shields
Power Input 6~24V
Reset Button Lateral, easier to use when connecting with a shield
IO Pin Output Current 8mA
Digital Pins 14
Analogue Pins 6
I2C 1
DC Jack Wide power input range 6-24V
Power Output Header Provides 5V or 3.3V power output and common-grounding with other boards
5V Power Output Up to 2000mA Max
Experimental Board Solder pads provided for DIY interfaces



Package Contents

  • 1x R7FA4 PLUS A Development Board
  • 1x USB Type-A to Type-C cable

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