Okay, I'm in the process of writing the code and getting a PCB made to do the testing. But as we all know, PCBs are cheap, so I only get one test, and even then I can't call it a test. :S
I'm developing the system using a normal Arduino MEGA until then (the old 1280 version), and I think a better approach would be for me to ask - If i change the speed, what difinitely WON'T work?
Thanks
Tom