[Lab] [ORE_bits] stepper drivers

Michael krazatchu at hotmail.com
Tue Jul 12 12:25:14 EDT 2011

You could design your own driver, I will donate/supply the controller ic 
and passives ....

I have a bunch of these parts taking up space that I may never get 
around to using..
It would be great to see them put to a good cause... They are AMIS 30512...
I also have a variety of power stages: MC33932,  L293DD, L298P, ULN2803 
that could be used with a mcu to make a programmable stepper controller...

If someone is willing to design one for the purpose of donating it, I'm 
all in on supplying the parts ...
I'll even toss in an extra set of parts for whoever designs it, to make 
one for themselves...
Disclaimer: As long as the parts used are parts I have in stock, I have 
a good bit of kit on hand, mostly smd...


On 7/12/2011 11:58 AM, Darcy Whyte wrote:
> I think an arduino drawbot 
> <http://mambohead.com/2011/07/random-drawbot/> is a total blast. I 
> want to make more of them and am looking at the different ways of 
> controlling steppers with the arduino.
> *Stepper Drivers*
> Easydriver 
> <http://danthompsonsblog.blogspot.com/2010/05/easydriver-42-tutorial.html> is 
> one mechanism. They are about 15.00 each at Robotshop. So that comes 
> out to 30.00 which isn’t too terrible. You can even run three 
> <http://youtu.be/migN744l640> of these if you want to do cnc 
> <http://youtu.be/bBsjsoVXBNA>. That comes out to 75.00 to run a three 
> axis CNC including the Arduino. Not too bad for a small hobby project. 
> But for drawbot that’s a bit steep.
> The Adafruit motor shield 
> <http://www.robotshop.com/ca/adafruit-motor-shield-kit-arduino.html> is a 
> better deal for a drawbot. It’s only 20.00 and it can run two servos 
> and either two steppers or four DC motors. Way more bang for the buck.
> What are good ways to get the price down even further?
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