GR-KURUMI

Overview

The GR-KURUMI board incorporates the 16-bit, low-power consumption, RL78/G13 Group MCU (R5F100GJAFB). Compatible with Arduino Pro Mini, this board can use existing sample codes, ensuring easy use with the Arduino language and standard libraries from both hardware and software aspects.

Key Features

The following special features, unavailable in Arduino Pro Mini, are perfect for designing small and low-power gadgets.

Runs on a single-battery. Incorporates a voltage booster from 0.9V to 3.3V (or 5V)
Includes a real-time clock with alarm function, facilitating a high-precision real-time counter (RTC)
Low-power mode: Arduino-like library allows for easy setup of the RL78 standby mode (STOP/SNOOZE)
GR-KURUMI's LED hair accessories: Unique GR-KURUMI features are illustrated in LEDs with glowing full-color hair accessories

GR-KURUMI Pin Map

Detailed Specification

Microcontroller: RL78/G13 (R5F100GJAF B 48-pin QFP)
ROM/RAM: 256KB/20KB
Data Flash: 8KB
Frequency: 32MHz (internal XO)
Sub Clock: 32.768kHz
Operating Voltage: 2.7V to 5.5V (Note)

Note: MCU operates from 1.6V. To ensure Arduino Pro Mini compatibility, the board offers a minimum 2.7V operation.

Resources

Schematic/Design

Sketch Reference

GR-KURUMI Sketch Reference

How to Program

My First GR-KURUMI

Project File for e² studio

Project file for sketching in Eclipse-based development environment e² studio. For downloading and installing e² studio, please refer to the e² studio product page.

Click to download. Import the archive file (zip) as an existing workspace from the menu 'File' -> 'Import' in e² studio.
GR-KURUMI Sketch v204-e2v7 Project File (ZIP)

Note: This is a project exported in e² studio Version 7.2.

Technical Support

Technical Information

User Forum
This is the Gadget Renesas User Forum on Renesas Engineering Community. In this forum space, you can find many showpiece applications using GR boards, as well as sample applications and programs. Post your questions and your showpiece here.
E-mail: [email protected]

Related Websites

GR-KURUMI Board Distributor

RS Components

Projects

Gadget Renesas provides boards that make it possible to prototype ideas quickly, a community where users can interact, and events to help users build their projects to make their ideas a reality. Below are some projects that utilized the GR-KURUMI board.