rotary encoder with dc motor

I am an architect and I'm building this moving ceiling. The project is almost done. It consists out of 64 motors and 64 encoders which control every intersection of the grid. Someone else will take care about the code and programming of the structure. I just need a simple way to print the values for two different encoders at the same time so I can check it 2by2 for every single motor. I need to make sure they spin at the exact same speed etc etc

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