The RL78/G23-64p Fast Prototyping Board is an evaluation board based on the RL78/G23 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 Grove interfaces, and has high scalability with access to all pins on the microcontroller. This product also supports writing programs with the Arduino IDE.


  • Equipped with an RL78/G23 16-bit microcontroller (64-pin, ROM: 128KB, RAM: 16KB)
  • 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 Grove interfaces
  • Arduino IDE ready
  • Support for various RL78 software and tools



Design & Development

Software & Tools

Software & Tools

Software title
Software type
E2 emulator Lite [RTE0T0002LKCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
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, RISC-V MCU]
Emulator Renesas
2 items

Software Downloads

Type Title Date
Board Description File ZIP 1 KB
PCB Design Files ZIP 2.97 MB
PCB Design Files PDF 168 KB
3 items

Sample Code

Related Boards & Kits

Boards & Kits

Rl78 Arduino Tutorial - Rl78 Arduino Introduction of Sample Sketch Using Arduino Library

This video introduces how to display data from the HS3001 sensor on the serial monitor of the Arduino IDE using RL78/G23-64p Fast Prototyping Board and HS3001.

Chapter's Title

00:00 Opening
01:08 Board Connections
01:23 Setup of Board Manager
02:14 Sample sketch operation
03:23 Ending

Related Resources

Quick Start Guide