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Re: gEDA-user: OT - Joystick control of stepper or servo motors

On 1/24/2011 7:56 PM, Kai-Martin Knaak wrote:
David C. Kerber wrote:

Any suggestions?
A master student downstairs just started to do something similar.
He needs to steer a target to wherever his femtosecond laser beam h
happens to be. He settled for a Joy stick with switches rather than
potentiometers. Speed is going to be controlled with a 12-way switch.

I don't think that's the way Goldfinger would have done it. Didn't he move the laser to hit the target?

What should I use to control them, Arduino or a generic motor
control circuit?
ATmega + dedicated power chip would be the no-fuss solution.
Arduino is more sexy, though.

There are all sorts of MCU chips with built in motor control drivers. I know Luminary Micro (now part of TI) is big on motor control. Any MCU manufacturer with motor control capabilities in their products will have app notes on how to use it. Check the various ARM MCU makers. I bet others also have motor control peripherals.


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