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

MORE POSTS

January 14, 2002
BEP Documentation Update

We've tweaked the documentation for the BEP-MSE1 "Miller Solarengine" to correct a minor error (if you wanted to use the MVSE modification, this is the correct on), and added some circuit specs. Application notes for all the modules are in the works- stay tuned!

November 7, 2006
Christmas Bundles!

My marketing team has been throwing (ouch!) erasers at me (ouch!)until I get this put online: Not sure if you should build or read this winter season? Combine the two! Get the "Junkbots" book and a HexPummer, Pendulum, or SolarSpeeder kit at a combined price that saves you money! (See below in "Featured Items")

March 20, 2010
Readin', Writin', & Instructablesin...

Well, it's been a few weeks since the last update. We have a few big projects on the burner - we're not quite ready to make any announcements yet, but keep your eyes open in the next few months. But don't fret - there are some things we can share with you this week. For […]

August 3, 2018
Closed on Monday August 6th

That's it. We've had enough. The weather is just too darn nice outside. So nice, in fact, that we quit. That's right, when Monday rolls around no one is even going to bother coming into the office. You heard us - we'll be closed on Monday, August the 6th. Go ahead and email and leave […]

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