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 13, 2006
Belated Xmas list...

Ever wonder what an evil (toy) genius wants for Christmas? The goons at GadgetMadness asked Mr. Mark Tilden, father of BEAM Robotics and the RoboSapien line of toys from Wow-Wee... (Ok, so I was too busy over the holidays to notice the link - sorry!) Read More...

June 25, 2013
Back on Track

Hey everyone, while parts of Calgary are still in recovery, things are now back to normal on our end. We're processing and shipping out on schedule, and unless you're in a flood-affected area you'll be receiving your order on time. Thanks for your patience!

July 12, 2007
Circuit: Herbie by Randy Sargent

Although not a true BEAM robot, this simple schematic by Randy Sargent is small, simple, slick, and effective. My own version uses a pair of pager motors and three cells from a 9V rechargeable battery. Hard to get any simpler than this device!

September 22, 2017
The Solarbotics GraviTrack Marble Machin...

Our GraviTrack Marble Machine Kit is our newest addition to the Marble-Drop mechanism family. Elegant, swooping hands pass marbles to each other to the top of a sweeping multi-level track, available in either solar or battery configuration! Approximately twice as wide as our spiral Solar or Battery Marble machine kits, the GraviTrack is still desk-top compact but large enough for easy mechanical assembly. Pre-order yours […]

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Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!

Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.

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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