Hi All-
Got a good deal on a nice size stepper over at Electronics Goldmine. It's an 8-wire stepper, but I think I've successfully reversed engineered it and know the sequence and everything. (pretty proud of that)
My only issue is that I didn't check the motor shield specs and it seems to want to go 5volts or more. Wooops.
Can I bring this power down with some resistors and be OK, or am I hosed?
Here's the stepper...
http://www.goldmine-elec-products.com/p ... ber=G18214
Thanks in advance for any ideas and sorry for the rather newbie question. I am a bit of a novice, but I'm trying!
Motor Shield and 2.5v Stepper?
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield and 2.5v Stepper?
From what I can see of the label, it looks like 2.5v 3.7A. 3.7A is much more than the Motor Shield is capable of. I think you will need to find a higher-current stepper controller to drive these.
- atanguay
- Posts: 2
- Joined: Fri Oct 28, 2011 12:45 am
Re: Motor Shield and 2.5v Stepper?
Ah bummer...I had a bad feeling. Thanks for the reply!
The one positive thing I can say is that I learned a TON about steppers last night and successfully reverse engineered the thing. I rearranged the wires so that it's now a 'Bipolar Series'. It was fun. Like a puzzle.
Any suggestions for a controller that would be Arduino friendly?
The one positive thing I can say is that I learned a TON about steppers last night and successfully reverse engineered the thing. I rearranged the wires so that it's now a 'Bipolar Series'. It was fun. Like a puzzle.
Any suggestions for a controller that would be Arduino friendly?
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield and 2.5v Stepper?
You might check to see what they have at Pololu.com. Very low-voltage motors like that are hard to drive because they need higher currents to achieve the same torque.
Much beyond 2-3A per phase is getting into industrial controller territory which starts getting more expensive.
Much beyond 2-3A per phase is getting into industrial controller territory which starts getting more expensive.
Please be positive and constructive with your questions and comments.