http://www.steppermachines.net/stepper-machines/how-to-program-a-stepper-motor-with-driver-to-do-a-certain-job.php Thu, 03 Dec 2009 20:14:41 -0500 http://wordpress.org/?v=2.9.2 hourly 1 http://www.steppermachines.net/stepper-machines/how-to-program-a-stepper-motor-with-driver-to-do-a-certain-job.php/comment-page-1#comment-221 d_r_siva Thu, 03 Sep 2009 09:29:23 +0000 http://www.steppermachines.net/stepper-machines/how-to-program-a-stepper-motor-with-driver-to-do-a-certain-job.php#comment-221 Stepper motors have a step chart that shows you how to move it. But I like to use the modern ICs that make it simple. They do all the work for you and you just need to pulse it to make it move, and then give it the direction you need it to go in. That takes two pins, in the simple ICs. The SAA1027 is an old standby, but there are lots more types. And you need to pay attention to whether or not you have a bipolar or unipolar stepper motor. Each has its advantages. So the language you use to drive it becomes unimportant, as long as you can control two digital output bits. Stepper motors have a step chart that shows you how to move it.
But I like to use the modern ICs that make it simple. They do all the work for you and you just need to pulse it to make it move, and then give it the direction you need it to go in. That takes two pins, in the simple ICs.
The SAA1027 is an old standby, but there are lots more types. And you need to pay attention to whether or not you have a bipolar or unipolar stepper motor. Each has its advantages.
So the language you use to drive it becomes unimportant, as long as you can control two digital output bits.

]]> http://www.steppermachines.net/stepper-machines/how-to-program-a-stepper-motor-with-driver-to-do-a-certain-job.php/comment-page-1#comment-220 Cheetah Thu, 03 Sep 2009 09:10:49 +0000 http://www.steppermachines.net/stepper-machines/how-to-program-a-stepper-motor-with-driver-to-do-a-certain-job.php#comment-220 Stepper Motor Experiments: Stepper motors are most commonly controlled by microprocessors or custom controller ICs and the current is often switched by stepper motor driver ICs or power transistors. Precise motion is possible but the complexity usually lands the hobbyist's stepper motors in the "maybe someday" parts bin. But steppers may be used for a variety of applications without complex circuitry or programming. At first glance the stepper motor looks a bit intimidating since there are at least four wires and often there are six. Most steppers have two independent windings and some are center-tapped, hence the four or six wires. A quick ohmmeter check will determine which wires belong together and the center-tap may be identified by measuring the resistance between the wires; the center-tap will measure 1/2 the total winding resistance to either end of the coil. Tie the wires that belong together in a knot and tie another knot in the center-tap wire for easy identification later. Stepper motors have become quite abundant and are available in all shapes and sizes from many surplus dealers. Experimenters can also salvage excellent steppers from old office and computer equipment. http://www.techlib.com/electronics/stepp…http://www.search.com/search?q=stepper+m… Stepper Motor Experiments:
Stepper motors are most commonly controlled by microprocessors or custom controller ICs and the current is often switched by stepper motor driver ICs or power transistors. Precise motion is possible but the complexity usually lands the hobbyist’s stepper motors in the “maybe someday” parts bin. But steppers may be used for a variety of applications without complex circuitry or programming. At first glance the stepper motor looks a bit intimidating since there are at least four wires and often there are six. Most steppers have two independent windings and some are center-tapped, hence the four or six wires. A quick ohmmeter check will determine which wires belong together and the center-tap may be identified by measuring the resistance between the wires; the center-tap will measure 1/2 the total winding resistance to either end of the coil. Tie the wires that belong together in a knot and tie another knot in the center-tap wire for easy identification later. Stepper motors have become quite abundant and are available in all shapes and sizes from many surplus dealers. Experimenters can also salvage excellent steppers from old office and computer equipment. http://www.techlib.com/electronics/stepp…http://www.search.com/search?q=stepper+m…

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