The RA0E1 Fast Prototyping Board is equipped with an RA0E1 MCU, making it an evaluation board specialized for prototype development for a variety of applications. It features a built-in SEGGER J-Link™ emulator circuit allowing you to write and debug programs without the need for additional tools. Moreover, it includes Arduino Uno™ and Pmod™ interfaces and through-hole access to all microcontroller pins, providing high expandability.

Sample software is available to demonstrate the functionality of the RA0E1 MCU and to facilitate connections between the RA0E1 Fast Prototyping Board and various wireless or sensor modules.


  • Equipped with an RA0E1 32-bit MCU 32-pin ROM: 64KB, RAM: 12KB
  • No additional tools are required for program debugging/writing with the built-in SEGGER J-Link™ emulator circuit
  • Through-holes with access to all of the pins of the MCU
  • Arduino Uno™ and Pmod™ interfaces
  • Small size board: 53mm x 85mm
  • Support for various RA0E1 software and tools



  • General purpose systems
  • IoT devices
  • Industrial automation and sensors
  • Consumer applications
  • Home appliances
  • Building automation
  • Medical and healthcare devices
  • Wearable devices


Design & Development

Sample Code

Getting Started with Fast Prototyping Board for RA Family

This video guides first-time users of the RA family using the Fast-Prototyping Board through the steps of installing a development environment, generating a project, and checking the operation to develop software.

The guide features the FPB-RA0E1 (Debugger: J-Link ARM) as a practical example.

Related Resources

FPB-RA0E1 - RA0E1 Fast Prototyping Board