The EK-RA4W1 evaluation kit enables users to effortlessly evaluate the features of the RA4W1 MCU Group and develop embedded systems applications using Renesas' Flexible Software Package (FSP) and various IDEs.

Getting Started

Running the Quick Start Example Project

  1. Power up the EK-RA4W1 board through the USB debug port (J11) using the micro USB device cable connected to a 5V power source. The green power LED will light up.
  2. The Quick Start example project will begin to execute blinking the red user LED.
  3. Refer to the EK-RA4W1 – Quick Start Guide (ZIP) to explore additional functionality of the Quick Start example project.

Developing Embedded Applications

  1. Modifying the Quick Start example project – Refer to the EK-RA4W1 Quick Start Guide for instructions on importing, modifying and building the Quick Start example project.
  2. Start with one of the many other example projects – Choose from many example projects to learn about different peripherals of the RA4W1 MCU group. These example projects can serve as excellent starting points for you to develop your custom applications.

Building Custom Hardware

  1. Start by building a functional prototype - Utilize the EK-RA4W1 board with your choice of ecosystem add-ons.
  2. Build custom hardware – Develop custom hardware by referring to the design and manufacturing information provided in the EK-RA4W1 design package.


The EK-RA4W1 kit meets several certifications/standards. Refer to the for the disclaimer, precautions and details on the certifications.


  • Kit Contents: EK-RA4W1 board
  • MCU Native Pin Access
    • 48MHz, Arm Cortex®-M4 core
    • 512kB Code Flash, 96kB SRAM
    • 56 pins, QFN package
    • MCU headers: 28 pins x2
    • MCU current measurement points
  • Ecosystem & System Control Access
    • USB Full Speed device
    • 5V input through USB debug
    • Debug on-board (Segger J-Link®)
    • One Digilent PmodTM (SPI)
    • User LED
    • Mechanical user button
    • MCU boot configuration jumper
    • ArduinoTM UNO connector

tuneProduct Options

Part Number Part Status Buy Sample


Title language Type Format File Size Date
User Guides & Manuals
EK-RA4W1 User's Manual 日本語 Manual - Development Tools PDF 1.12 MB
Application Notes & White Papers
Bluetooth LE microcomputer / module Bluetooth qualification acquisition Application Note 日本語 Application Note PDF 1.15 MB
QE for BLE[RA,RE] Sample Projects and Dedicated Programs for the R_BLE Scripts
Related Files: Sample Code
日本語 Application Note PDF 2.33 MB
Renesas RA Family QE for BLE Usage for IAR EWARM Application Note PDF 1.83 MB
RA4W1 group Environmental sensor network solution control sample software for building / HVAC
Related Files: Sample Code
日本語 Application Note PDF 5.09 MB
QE for BLE usage for Keil® MDK for RA Family Application Note PDF 1.51 MB
EK-RA4W1 – Quick Start Guide (R20QS0015EJ0101)
Related Files: Other
Application Note PDF 1.23 MB
star EK-RA4W1 – Quick Start Guide
Related Files: Application Note
Other ZIP 1.71 MB
EK-RA4W1v1 - Design Package Schematic ZIP 1.39 MB
An Introduction to Renesas Advanced (RA) MCU Kits Presentation PPSX 38.31 MB
RA4W1 Group Flyer 日本語 Flyer PDF 381 KB
Renesas RA Family of 32-bit MCUs with Arm® Cortex®-M Core Flyer 日本語 Flyer PDF 391 KB

select_allSoftware & Tool Pages

Title Type Description Company
Flexible Software Package (FSP) Software Package FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers.
Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain and Segger J-Link drivers required to use this software. No additional installations are required.
e² studio IDE and Coding Tool Eclipse-based Renesas integrated development environment (IDE).
[Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
(Note: You need to install compiler separately as an additional software)
(Note: No separate e² studio installation required for RA FSP, this will be installed as part of the FSP with e² studio installer (Platform Installer) on GitHub.)
Renesas Flash Programmer (Programming GUI) Programmer (Unit/SW) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0] Renesas

printNews & Additional Resources

Type Date Sort ascending
Renesas RA MCU Family External Link Jun 22, 2020