Circuit: Stepper Motor

Dave Hrynkiw
July 12, 2007

This is a neat little one-chip circuit we originally tuned for use with our "SM1" Stepper motors. We've presently sold out of the motor, but this circuit has proved to be a good unidirectional (1-way) driver for small stepper motors. Parts required are:

  • 74AC240 Octal buffer chip
  • 4 x CP0.1µF capacitors
  • 100k resistor
  • 2 x 47k resistors

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March 25, 2004
From a satisfied customer...

Here's a nice message from Jack Buffington resulting from our recent trip to Robolympics: "Hi. I just wanted to say thanks to Dave for tipping me off to those new motor/gearboxes that you are selling. He sold two of them to me on Saturday. On Sunday I won the ribbon-climber event using the one of […]

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Christmas Holiday Schedule - 2019

With the holidays fast approaching we would like to announce our holiday schedule which is outlined below. When deciding how to ship your orders, please review the shipping estimates at checkout as some methods may not arrive before the beginning of the holidays!

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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.

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