GR-CITRUS tiny board enables easier to program with Ruby language. You can develop your Ruby code with "Rubic" on chrome app.
Of course you can program like Arduino sketch on Renesas Web compiler and IDE for GR.
By connecting with WA-MIKAN that has 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 product attached long pin socket for WA-MIKAN.
(The image describe normal type)
- WA-MIKAN (-FULL)
- Wi-Fi module "ESP8266" and micro SD socket.
-FULL has a pin socket for GR-CITRUS connection
(The image describe full type)
|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
How to program
You can make a sketch on Web compiler and write a program like USB flash memory.
Also you can use IDE for GR for that.
Latest firmware (for running Ruby)
It is a link to GR-CITRUS's latest firmware for Ruby. To write the firmware, please press the reset button of GR-CITRUS and recognize it as USB memory, then copy the bin file.
GR-CITRUS Latest firmware (GitHub)
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.