Overview
Description
The RL78/L23 Fast Prototyping Board, featuring the RL78/L23 MCU, is ideal for various prototype development. This board has a USB-UART converter for COM port debug function, enabling programming and debugging without extra tools. It includes an LCD panel (8 digits x 16 segments) and two touch buttons, thus you can start evaluation of the LCD and capacitive touch immediately. In addition, it has high flexibility and expandability by supporting Arduino Uno, Pmod™, Grove interfaces, and through-holes with access to all MCU pins. It supports firmware updating, Wi-Fi, LoRa, and LoRaWAN-based wireless communication by sample code. Renesas also provides an Arduino library that supports creating various programs (sketches) on the Arduino IDE.
Features
- Equipped with an RL78/L23 16-bit microcontroller (100-pin, ROM: 256KB x 2 banks, RAM: 32KB)
- 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
- Comes standard with Arduino Uno and Pmod™
- Arduino library available
- Equipped with LCD panel and capacitive touch sensor buttons
- Support for various RL78 software and tools
Applications
Design & Development
Software & Tools
Sample Code
Sample Code
Filters
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Type | Title | Date Date |
Sample Code | ZIP 6.79 MB 日本語 | |
Sample Code |
[Software:RL78 Smart Configurator|V1.14.0] ,[Toolchains=CC-RL|V1.15.01]
ZIP
4.02 MB
Application:
Communications Infrastructure, Consumer Electronics, Industrial
Compiler:
CC-RL
Function:
Software Package
IDE:
CS+ for CC, e2 studio
|
|
Sample Code |
[Software:RL78 Smart Configurator|V1.14.0] , [Toolchains=CC-RL|V1.15.01]
ZIP
28.93 MB
Application:
Communications Infrastructure, Consumer Electronics, Industrial
Compiler:
CC-RL
Function:
Software Package
IDE:
CS+ for CC, e2 studio
|
|
Sample Code |
[Toolchains=CC-RL|V1.15.1]
ZIP
32.38 MB
日本語
Compiler:
CC-RL
Function:
Other peripherals
IDE:
CS+ for CC, e2 studio
|
|
Sample Code |
[Toolchains=CC-RL|V1.15.1]
ZIP
17.30 MB
日本語
Compiler:
CC-RL
Function:
Other peripherals
IDE:
CS+ for CC, e2 studio
|
|
Sample Code |
[Toolchains=CC-RL|V1.15.1]
ZIP
17.93 MB
日本語
Compiler:
CC-RL
Function:
Other peripherals
IDE:
CS+ for CC, e2 studio
|
|
6 items
|
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
Resources
Videos & Training
This video demonstrates how to import sketches using the RL78 Arduino library into e² studio, as well as how to build and debug them. By debugging in e² studio, you can obtain detailed information and verify the internal workings of the library, which is not possible with the Arduino IDE.
Related Resources