Re: Pan & tilt webcam - USB or Parallel port interfacing?

On 16 Aug 2006 10:13:51 -0700, "Clayton" <clayton.curmi@xxxxxxxxx>
wrote:

Hi,

I need some help for my last year project which is a pan and tilt
webcam controlled over internet using client/server application
(csharp). Can someone tell me what do I need to interface 2 stepper
motors with the PC using a USB port? I searched on the internet and I
found that I will require a microcontroller, right? Which model is the
best for my needs? I've already managed to control the motors through
the parallel port, but since the parallel port is out of fashion I
thought it might be more interesting using a USB connection. Any help
is appreciated.

Thanks,
claytonc

Some interesting pan and tilt mechanisms make use of radio control
servos. It has been awhile, but I think they work on pulse position.
Search for RC servo testers.

I built something back in 2000 to remote pan/tilt my security cameras
and only needed three op amps from a 4 amp integrated circuit. Strong
little suckers, inexpensive, and decoding logic built in. I paid
something like $6 each for them. (~$10 today)

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