[PD] motor control interfacing

Martin Peach martin.peach at sympatico.ca
Mon May 19 17:03:27 CEST 2008

Max Neupert wrote:
> hi list,
> i want to control two motors (pan&tilt). i looked into several options 
> and this seems a good start:
> http://www.ladyada.net/make/mshield/
> together with the arduino.
> i need a very smooth movement, so steppers from floppy drives seem a 
> good option.

Steppers step, they are used to move the head from one track to the next 
but not in between, so if you want smoothness of motion, the gear motor 
that ejects the disk (either floppy or cd) is a better choice. You can 
control it using the arduino's pwm pins and an h-bridge like the 
mshield. Or the L298 chip is easy to set up and inexpensive, will drive 
two motors.


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