I need the project to be pd controlled, i could try multiplexing but i haven't found info yet on how to control multiplexed pins via pd.

Peter Venus:

i've been in contact with Winfried, and was about to purchase one of his older systems but haven't heard from him in a while. Working on plan B.

Olivier:

that was good work but again, pd is a must and servos are extremely loud.

Charles Goyard:

i've been able to control solenoid velocity with pwm via pd, this is also how Winfried does it. Also, motors are way too loud, as I told Olivier. That's why i'm investigating daisy chaining the arduinos, i'm basically emulating Winfried's system, but replacing his Escher micro-controller with arduino Mega's.