DogP

I know this thread is a bit old, but I ran into the same issue and Google directed me to this thread. Not sure if it'd work for your needs, but I ended up solving the 3rd and 4th axis issue by adding USB emulation of two mice, and then simply...

I was recently trying to hook up 4 rotary encoders to a computer through a Teensy (3.2) using mouse emulation, but ran into an issue with the 3rd and 4th mouse axes not behaving like the first two. Upon searching, I found similar discussion in...