Gadget Renesas

Linking Ideas and Electronics

Item

GR-COTTON

GR-COTTON is white and round board that has full color LED to link between light and design. You can put a CR2032 battery and write a program via USB cable, so that allows to check the operation using LED and creat a gadget smoothly.
In addition you can program that is compatible with Arduino libraries.

GR-COTTON Special site



GR-COTTON GR-COTTON
Embeds Renesas 16 bit microcontroller RL78/G13 group
The socket for CR2032 is mounted on the reverse

GR-COTTON

Pin Map

Specification

Item Description
Microcontroller RL78/G13 (R5F100GJAF B 48pin QFP)
ROM/RAM 256KB/20KB
Data flash 8KB
Main clock 32MHz (internal)
Sub clock 32.768kHz
Operating voltage 3.3V *

* The operating voltage of MCU is from 1.8V to 5.5V

Boards Distributor

Under planning outside Japan.

Technical Support

Technical Information
Related Web Site

Twitter

Schematic / Design

Schematic

PDF

BOM list

Layout

PDF

Document

Creating & Writing Programs (Sketches)

Take a look at the GR-COTTON Special Project Page!
Also you can use IDE for GR for that.

GR-COTTON Special Project Page


 *You can create a sketch on the Web compiler and write the program to GR-COTTON using
    the Kurumi Writer. Also you can use IDE for GR to accomplish the same process.

Project file for e2studio

Project file for sketching in Eclpse-based development environment e2studio. For downloading and installing e2studio please refer to the product page.

Click to download. Import the archive file (zip) as an existing workspace from the menu 'File' -> 'Import' in e2studio.

cotton_sketch_V201.zip

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