I had been giving some advice to Mark Malmberg about some art he's been putting together. Wanna see a killer huge solar-powered hanging mobile? From the builder himself: This piece has been a test piece and learning experience. I'll show it in a couple of months at a place called the Lawrence Hall of Science […]
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
Junkbots available!
We're proud to announce that we just got our shipment of 'Junkbots, Bugbots, and Bots on Wheels' tonight! The first 100 books will come signed by Dave Hrynkiw, and come with a free GM2 or GM3 gearmotor!
Aleph Objects (Lulzbot) is still alive! ...
Update: Additional information from the Loveland Reporter Herald We've been big fans of Aleph Objects' 3D printers. They fit that sorta "Prosumer" niche. A bit better than kit-builds, not quite as expensive as the big professional units. We were disappointed we got the call a few months ago relating that Aleph was looking to shut […]
BEP Application #4 - The BBPV
We've churned out another Bicore Experimenter's PCB project: The "Bare Bones PhotoVore". This is an elegant little circuit, which offers the functionality of a basic photovore (with tactiles) all on a very simple circuit. Ours is solar-powered by a Miller Solarengine, but if you wanted to build one with a battery, your parts count would […]
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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.