Well, we're all back from Maker Faire, feelin' pretty groggy but fairly alive (or, perhaps more accurately, undead - something about being in a zombie-like state sounds about right). So to break the recent drought of news posts, we've dug out a treat from the deeper regions of the Solarbotics server archives. This is some […]
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
New Gearmotors!
We're very excited to announce these new "baby" versions of the popular GM2 and GM3 gearmotors. These junior versions offer a 120:1 gear reduction ratio, built-in safety clutch, and 146rpm with 20in*oz torque at 5V drawing onlyh 90mA (620mA at stall). Take a look at them in the motors section of our website! The new […]
New Catalog!
We've just printed off our latest catalog, and if you've ordered from us in the last year, or asked for one, expect a copy in the mail shortly! Or if you can't wait, download a copy in PDF format now (1.9Mb)!
Wednesday Cool Links: Laser Experiments,...
Look! Bird (-shaped bullets) made holes in bird... feathers! Well, not quite, although that would have been awesome too. Actually we were doing some nitrogen-assisted laser tests on various regular, i.e. boring materials, such as plywood and mat board. Then I came across some feathers and here's what it turned out to be: Now that […]
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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.