Thanks, I did as you said and it works!
But now I have to solve a problem.
I explain what happens.
To do some tests on the fly I took these 5 volts from a PC USB socket (cut a common USB cable and use the red and black wires).
The board is normally powered with LED lighting.
I configure doors etc etc ... as usual .. nothing exceptional ..
I connect a potentiometer following the instructions...etc etc
so everything works...
let's get to the good....
as soon as i turn on the cnc servos, the potentiometer values start to oscillate...and the Mach4 slide wobbles..
I turn off the servo... everything returns stable...
other...
is it possible to add a digital shot? it is difficult to hit 100% with the potentiometer, it would be enough that from 98% to 102% the slide remains fixed on 100% is it possible?