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|Your Bugs/Sizinkiler: Step Motor Control via PC parallel port|
Posted by ozkal on Thursday, October 20 @ 16:06:29 EDT (16102 reads)
|Submitted by Technoshaman|
This is a project created in a rush for an old friend of mines small TV camera, during one of my visits to Ankara :) It can also be used for other purposes.
The circuit is pretty simple and the necessary parts can easily be found anywhere. If a 2N2222 is going to be used instead of the TIP120 in the schematic, a diode such as a 1N4001 should be used
(between the Emitter and the Collector) to protect the transistors. The circuit was designed for a 5 lead unipolar stepper motor. We can see which coils are active thanks to the LEDs. A buffer IC such as a 74367 can be used to protect the port from any possible leaks.
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