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 […]
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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Metal Spinning Field Trip
We've been researching a manufacturer for a shiny new product we are working on (shhh, don't tell anyone and stay tuned for the reveal!). What we have been looking for is a metal spinner. Metal spinning, also known as spin forming, spinning, or metal turning most commonly, is a metalworking process by which a disc […]
Solarbotics goes "Hip"
Solarbotics has been on "the internets" for quite some time now. We've seen many websites come and go, but we've recently jumped feet-first into the cold, frigid water of this "social web 2.0 happy fun time" thing we keep hearing about. I mean, it's Web 2.0. That's, like, twice as much as Web 1.0. And […]
Order Form Glitches
More teething problems! We're very aware of the secure server "security warning" that pops up when you click on an items "Add to Cart" button. Be assured, we ARE the appropriate receivers of the information. The problem stems from the ISP serving our website (Cadvision) having a secure server that doesn't correctly parse the names […]
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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.