I use the newest version 1.8.5 with the Additional Board URL 'https://raw.githubusercontent.com/ultim ... index.json
' and searching in the Boards Manger for 'RAMBO'. Used in the past the Arduino IDE 1.6.8 with all the changes but don't need it anymore.
Before you open Arduino IDE you need to copy the right 'Configuration_prusa.h' file from the variants folder:
- 1_75mm_MK2-RAMBo13a-E3Dv6full.h for Prusa i3 MK2/s with miniRAMbo 1.3 controller
- 1_75mm_MK2-MultiMaterial-RAMBo13a-E3Dv6full.h for Prusa i3 MK2/s with MM upgrade and miniRAMbo 1.3 controller
When you compile the code and then export the compiled binary make sure that you use the 'Firmware.ino.with_bootloader.rambo.hex' file to upload via the Prusa firmware uploader.