Posts Tagged ‘easydriver’
Manually controlling bipolar stepper motor with Arduino and EasyDriver
February 22nd, 2013 | 
Author:
Stepper motors are great for accurate positioning because they move in discrete steps – a feature that makes them very appropriate for CNC software control. But every once in a while you have an application where you need to press a button and rotate some kind of a jig at a preset angle or move something a preset distance if it’s a stepper-driven linear stage. So, I decided to modify an earlier Arduino sketch I wrote for testing the world’s smallest stepper motor to make it a bit more useful (and clean any bugs in the process). Keep reading to see what came out … Read the rest of this entry »
Posted in Arduino, CNC, Motor Control, Robots | 
Tags: arduino, bipolar stepper, easydriver, stepper motor | 
64 Comments »
World’s Smallest Stepper Motor with Arduino and EasyDriver
This little wonder of electromechanical engineering came from inside a laser diode sled of an HP CT10L Bluray drive I’ve opened some time ago. The device on the picture consists of several parts, all easily fitting on a dime coin: a bipolar stepper motor with lead screw, a linear stage, a lens, and even an end position sensor (I’ve yet to make use of the sensor though). The entire assembly is only 14mm x 9mm x 4mm. This post is about making this tiny motor move. Keep reading! Read the rest of this entry »
Posted in Arduino, Motor Control, Teardowns |
Tags: arduino, bipolar stepper, easydriver |
30 Comments »
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Coming soon ...
- Larry Siegfried: I almost forgot about your article and realized that I was on my “Last” Puck that I had...
- rodrigo: hola estoy trabajando con un scorbot er3 mi duda es: que circuito implementaste para leer los pulsos del...
- rodrigo: hello my name is rodrigo work with a scorbot er3 and my doubt is how you got the reading of the encoders the...
- admin: The problem with 1/8th microsteps however, is that the difference in current (or PMW pulse width, depending on...
- admin: (darn overly sensitive Mac mouse for wiping out LONG explanation, sorry I can’t bring myself to type all...
- greg: Thanks for your reply. It all makes sense what you are saying, although I`m not totally sure what you mean the...
- admin: Hi Greg, thanks for stopping by my blog. You can increase the motor voltage, to add torque, but I would not...
- greg: Hi! Thanks for publishing this, very useful thread! I just built it exactly the same way to drive a small...
- deadshot: can someone send me a link to the sites where i can buy those ic and the rest
- Filippo: Hi, thank you for this post.. Very instructive. Actually I’d have some question.. I want to use a BLDC...