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Old 04-08-2011, 08:32 PM #1
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Default Controlling actuator with parallel port

Hi!
More experiments...
I'm trying to control an actuator with the parallel port.. I know it's possible, but i have some troubles... When i connect for example the 2nd pin to the positive of an amp i made, the 25th pin to the negative and if i turn on the parallel port, the actuator vibrates and dont goes to some position =/

Can you help me please?

EDIT: I found this link http://spt06.chez-alice.fr/00/scan1.htm and i tryied to do it but without resistors and did not worked... They are necessary? Can i change the value of the resistors?


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Old 04-08-2011, 09:02 PM #2
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Default Re: Controlling actuator with parallel port

The schematics show resistors... not using then can
damage your computer's Parallel port drivers...

you will need to show the software that you use to
drive the Parallel port as well as the exact parallel
port circuit that you built...
Picture would help a lot....

Jerry
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Last edited by lasersbee; 04-08-2011 at 10:25 PM. Reason: spelling errors
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Old 04-08-2011, 09:07 PM #3
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Default Re: Controlling actuator with parallel port

I don't have any circuit as parallel circuit...
I just have an amp. and connected it to the parallel port as i explained...

The software i'm using is a simple program i build in Visual Basic that allows to turn on/off each port
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Old 04-09-2011, 05:19 AM #4
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Default Re: Controlling actuator with parallel port

You can only send out 1s and 0s from the parallel port. So you'll need to send out a PWM-like signal to be able to do any kind of control.
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