Phoenix

I would love one of these also. Would you do another run if there was enough interest?

A complete walkthrough with more info and perhaps example sketches for both boards hooked together would be extremely helpful. I started working on it but got very frustrated.

Getting these errors trying to compile the EOS Interface Board Sketch V1 core.a(HardwareSerial.cpp.o): In function `__vector_18': C:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino/HardwareSerial.cpp:115: multiple definition of `__vector_18' EOS\EOSBusSerial.cpp.o:C:\Users\Documents\Arduino\libraries\EOS/EOSBusSerial.cpp:624: first defined here core.a(HardwareSerial.cpp.o): In function `__vector_19': C:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino/HardwareSerial.cpp:218: multiple definition of `__vector_19' EOS\EOSBusSerial.cpp.o:C:\Users\Documents\Arduino\libraries\EOS/EOSBusSerial.cpp:672: first defined here My hardwareserial.cpp file is attached. Maybe it's the version of this file? Is there an example of the sketch that would have to be loaded in the second board hooked to the Leonardo? HardwareSerial.cpp.txt

Awesome info thank you. So what do you do at the next board in line does it also have to be a Leonardo?

How do you use multiple Arduino boards without using a lot of USB ports? Looks like there is some way to chain them together?