Originally Posted by
GerryH
Good video. I still don't know why Jose hasn't changed his method for measuring the RPM of the flywheel. There shouldn't be any problems with the microcontrollers that are available to use an rising edge interrupt on the IR sensor with only a single reflector on the flywheel and measure time per rotation.
I seriously considered trying to reverse engineer the firmware or build my own controller board. But I wrote my own software to smooth and analyze the data which was much easier.
Building my own controller board is on my list. But that list is pretty long, and I don't want to build a full dyno. Eventually though, I'll get to it. As to the mcu, yep... The v3 board actually uses an STM32F401, 84MHz, plenty fast enough to get rid of the timer interrupt he uses.