chainclockguy Posted February 29, 2012 Report Share Posted February 29, 2012 hi,I need a (what I assume is) fairly simple circuit that can drive a small stepper motor. By small, I mean something like this:http://www.sparkfun.com/products/10551 400mA @ 12V max.This would be placed in a clock, so it would need to use a crystal/oscillator of some sort to keep accurate time. I would need it to rotate the motor at a specific speed(s), something along the lines of 3 Rev/Hour. If this speed could be adjusted in specific increments, that would be great, but a fixed speed would be acceptable. Input voltage would be up to you, but something in the 6~12 vdc range would be ideal.I am currently using geared AC synchronous motors for this application, but it less than ideal since they won't work properly internationally.http://www.chainclocks.com for a practical view. Quote Link to comment Share on other sites More sharing options...
chainclockguy Posted February 29, 2012 Author Report Share Posted February 29, 2012 A couple of additional notes - I would like the controller to be able to drive the motor in either direction (selectable) as well as include a momentary button/input that would run the motor at a much higher speed in order to set the clock. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted February 29, 2012 Report Share Posted February 29, 2012 How much are you offering? Quote Link to comment Share on other sites More sharing options...
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