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
GR-CITRUS Special site
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. About the latest firmware, refer to Github.
GR-CITRUS Ruby firmware V2.35
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.
Note: This is a project exported in e2studio version 5.4. It can not be imported successfully in Version 6.0. For later versions please check that the import is compatible.
USB mass storage firmware
It is a link to GR-CITRUS's USB mass storage firmware written at manufacturing. To write the firmware, it's necessary to use Renesas Flash Programmer. And close MD jumper on GR-CITRUS to change to programming mode with USB direct connection.
At version b, the volume label becomes "GR-CITRUS_b". Version b expands the bin write area from 528 KB to 960 KB. Depending on the OS of the PC, hidden files may be written to the storage, and the actual writing area may be reduced.
GR-CITRUS USB mass storage firmware (version b, Nov 7th 2017)