The RL78/G15 Fast Prototyping Board is an evaluation board based on the RL78/G15 microcontroller and is specifically designed for prototyping various applications. Simply plug in a USB cable to write/debug a program and start your evaluation without any additional tools. You can also perform advanced debugging using the E2 emulator Lite or the traditional E2 emulator. The board comes standard with Arduino Uno and Pmod™ interfaces, and has high scalability with access to all pins on the microcontroller.


  • Equipped with an RL78/G15 16-bit microcontroller (20-pin, ROM: 8KB, RAM: 1KB)
  • Programs can be written and debugged via the COM Port communication by connecting it to a PC with a USB cable
  • Able to access all the microcontroller pins
  • Standard Arduino Uno and Pmod™ interfaces
  • Arduino IDE ready
  • Support for various RL78 software and tools


Title Type Date
Manual - Development Tools
PDF1.32 MB日本語
Related Files:
Application Note
Manual - Development Tools
PDF1.25 MB日本語
Manual - Development Tools
PDF1.91 MB
Manual - Development Tools

Design & Development

Software & Tools

Software & Tools

E2 emulator Lite [RTE0T0002LKCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX] Emulator Renesas
E2 emulator [RTE0T00020KCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Emulator Renesas
Quick-Connect IoT PlatformQuick-Connect IoT platform enables fast prototyping by providing compatible hardware and software building blocks. Other Hardware Renesas

Sample Code

Sample Code

Title Type Date
ZIP11.58 MB日本語
Related Files:
Application: Consumer Electronics
Compiler: CC-RL
Function: Communication Interface
IDE: CS+ for CC, e2 studio
Sample Code

Videos & Training

RL78 Arduino Quick Start Guide

This video introduces how to run a sketch on the RL78/G23 Fast Prototyping Board using the Arduino IDE.

Related resources: Quick Start Guide page (GitHub)

00:00 Opening
00:30 Install the Arduino IDE
00:55 Preferences setting
01:19 Install the tools
01:39 Write the sketch
01:48 COM port setting
02:15 Board setting
02:33 Compile, upload, LED blinking