The tiny GR-CITRUS board enables easier programming with Ruby language. You can develop Ruby code with "Rubic" on a Chrome app.
Of course you can program Arduino-like sketches on the Renesas Web compiler and IDE for GR.
By connecting with WA-MIKAN that has an ESP8266 module for Wi-Fi, you can prototype a system using Wi-Fi and micro SD card.
- GR-CITRUS (-FULL)
- Renesas 32-bit RX63N Group MCU is on board.
Compatible pin array with Arduino Pro Mini.
-FULL version comes with long pin sockets for WA-MIKAN connection.
(Photo shows normal version, which has no pin header.)
- WA-MIKAN (-FULL)
- Wi-Fi module "ESP8266" and micro SD socket.
-FULL version comes with pin sockets for GR-CITRUS connection
(Photo shows -FULL version, which comes with pin sockets.)
|Microcontroller||RX631（R5F5631FDDFP 100pin QFP）|
|Main clock||96MHz (internal)|
|Board function||Reset Switch, 20 expanding pin, User LED 1|
Under planning outside Japan.
Related Web Site
Schematic / Design
Sketch reference (Under preparation)
Create and Write a Program
GR-CITRUS Special Project Site
Latest Firmware (to run Ruby)
This link provides the latest version of firmware for GR-CITRUS Ruby. To write the firmware to GR-CITRUS, press the reset button on the GR-CITRUS board, wait for it to be recognized as USB memory, and copy the bin file.
Latest GR-CITRUS firmware (for Ruby)
How to program
Create sketches on the Web compiler and write programs to GR-CITRUS as if it were a USB flash memory. IDE for GR can also be used to do the same processes.