Did you see the lunar eclipse on Monday night? I wish they had it rescheduled for Sunday afternoon, so all of us night-owls-who-have-to-get-up-early could watch that. But noooOOoOO. But at least the internet will save us. At least from information deficit. Laser Cut Helical Springs I wonder if zigzag helical springs can still travel down […]
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
Monday - Holiday!
May long weekend is upon us up here in Canada, with Victoria Day being Monday. Ahhh, time to melt the igloo, unshovel the lawn mower and scrape away the ice so we can plant snow-peas! (Joke - it's actually quite nice here in Calgary right now...) Anyway, any orders received after 2pm today will not […]
New: The Ardweeny BackPack!
We've been playing with the Pick and Place machine, and thought about new projects. This one, besides just being plain handy, offered us a simple project to start adding surface-mount parts to! The Ardweeny is proving to be a popular way to make a breadboard-friendly Arduino-clone, but after the prototyping is done, you still have […]
Calgary Mini Maker Faire Ticket Giveaway...
We've got two pairs of weekend passes for the Calgary Mini Maker Faire taking place this weekend up for grabs. To enter, send an email to it@solarbotics.com with the subject of "I <3 Solarbotics" to enter. Two winners will be selected Friday the 13th @ Noon.
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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.