►Connecting Unipolar Stepper Motor
There are actually many ways you can interface a stepper motor to your controller, out of them the most used interfaces are:
We will dicuss both connection techniques one by one. The above mentioned methods need 4 controller pins for interface.
►Connecting Unipolar stepper using L293D
As you see in the circuit above the four pins "Controller pin 1",2,3 and 4 will control the motion and direction of the stepper motor according to the step sequece programmed in the controller.
There are actually many ways you can interface a stepper motor to your controller, out of them the most used interfaces are:
- Interface using L293D - H-Bridge Motor Driver
- Interface using ULN2003/2004 - Darlington Arrays
We will dicuss both connection techniques one by one. The above mentioned methods need 4 controller pins for interface.
►Connecting Unipolar stepper using L293D
[lightbox=l293d-stepper-big.gif|Stepper motor interfacing using L293D|stepper motor connections]
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Please click on the image to enlarge it[/lightbox]As you see in the circuit above the four pins "Controller pin 1",2,3 and 4 will control the motion and direction of the stepper motor according to the step sequece programmed in the controller.
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