I ran ACController in debug mode ... and then went through the code to locate Run-Pi-test so that I could set a break-point ...
There is no command run-pi-test in ACController.c, or UART4011.c ... so I guess it makes sense that the controller did not respond to this command
I went through the instructable again (since I knew I read that command somewhere!). And I don't think I missed it. I did not see the name of the program that you run that will include run-pi-test .. but I thought it would be ACController.c
A bit further down in the instructable there are more instructions for 3 phase motors, and that program is ComputerRotorFluxAngle. Not sure if I need to run another one first, but I will run that one tomorrow and see what happens!
It does not appear to have a run-pi-test command either .. and the zip file does not contain UART4011.c or UART4011.h
I'll run it and see what happens.