Good day!
I have 4 step motors, 1 stop buton, 8 end sensors, 4 pneumo relay for suction cups.
I am going to buy 1) KFLOP, 2) KStep Microstepper Amplifier for KFLOP.
Do I need to buy Konnect Optical I/O Expansion Board?, - as amplifier for KFLOP already has optoisolated inputs and outputs.