Not exactly relevant to BEAM, but an interesting distraction: Here's some interesting media from the San Francisco Exploratorium. Notable media to watch is their "Iron Science Teacher" competition (familiar with "The Iron Chef? Same idea...), and their hosting of Robot Sumo Wrestling.
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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Still time to get stuff for Christmas...
There's still a bit of time left if you're dropping hints to your loved ones about what you want for Christmas! US Express -- December 22 (last chance!) Canada Express -- December 23
SunSwingers
Remember the old SunSwinger? That nice and pretty red'n'gold layout? Well, they're GONE. No more! Finito! With that said, we're happy to introduce the new SunSwinger... The ones in black and gold (at no increase in price)!
Project Monday: All-Seeing Eye
This week's project is coming to you fresh from Alex, an engineer in our R&D department, with some help from Yana, our graphic designer. They've developed an enclosure based on the SAFE that accommodates sensor mounts on each side in addition to an Arduino-style board within. And after putting on some short range and long […]
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