Quote:
Originally Posted by Euler Kernighan
a question just occurs right now: can I use just one controller to control all the drivers or it is mandatory using one controller to one driver?
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It depends on the capabilities of the controller and the requirements of the drivers.
In this context, a normal Arduino (328p) with no other hardware can produce 6 PWM signals, so in effect you have 6 "channels" of control. Assuming your driver of choice is fine with a 5v pwm signal, you need no interface hardware. Assuming there are no strange complications, and the driver's current pull on the 5v channel is low enough, you can probably fit more of the drivers on a given channel than you could possibly want.