Since Halloween is just around the corner we've built and published a few projects in order to give some ideas to the DIY costume-inclined folks. One is DIY Halloween RGB LED Kitty Ears and two is Halloween LED Witch Hat. So for this third hack we started with an online-bought robot costume, but being a […]
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 Kit: Type-1 Solarengine Re-issue
It's been a while since we've had this kit online, but due to some diligence we've found materials to update and re-issue it! Using the licensed "MillerEngine" (which we find to be a substantial improvement over the old Solarengine), we've changed the kit with a new black circuit board and updated documentation. Check it out […]
Christmas/New Years Holiday Hours
Happy holidays! This is a quick note to announce our holiday schedule, which is going to be as follows: Friday, December 23 - Offices open til 2pm Saturday, December 24 - Tuesday, December 27 -- Closed Wednesday, December 28 - Thursday, December 29 - Open Friday, December 30 -- Offices open til 4pm Saturday, […]
Frogbots! Solar-powered, at that!
I missed the full segment of this story last weeks on "Discovery Channel's @discovery.ca" program, but fortunately, the've put the segment online at their website. I seems that JPL (Jet Propulsion Laboratories - NASA essentially) is working on a solar-powered, single-footed robot frog. This seems like a GREAT idea for extra-terrestrial planet-surface locomotion. Check out […]
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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.