You will not believe what happened today. Our boss showed up to work today wearing a red shirt with beige pants. BEIGE PANTS! Also, he just so happens to be leaning on the brand-new laser that was delivered not 20mins ago. It's a 60W Eplilog Helix (which you may have figured out for yourself), and […]
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
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Sumobot Circuits
We've been having fun playing with the L293D driver chip. It's one of those things to see how much you can make it do by itself (like with any BEAM application!). Grant McKee has been experimenting with some simple additions to the chip to make it (unto itself) a suitable brain for a simple mini-sumo […]
Junkbots book website
We've just had the author copies of the book arrive today! Woohoo! That means that our regular inventory must be near behind. Stay tuned! This is as good as a time to announce the support website for the book at http://junkbots.solarbotics.com. The book says come to our website for support, but we've since constructed a […]
Wednesday Links: Galaxies, BeatBlox and ...
Here's a new portion of links to brighten the otherwise unremarkable day. Beat Blox A simple and elegant way to visualize sound and tangibly control it. (Via Creative Applications) Heart Bot Drawn with sound, vibration, sunlight, now draw with heartbeat! Now that's how it's supposed to be. (Via Designboom) New map shows where the Milky […]
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Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.