The Western Canadian Robot Games are close at hand (umm... this weekend!), and in response to popular request, we're cranking up the SolarSpeeder contest again! Ever built a Solarbotics SolarSpeeder? Bring it down to the games, enter at our booth (free!), and we'll run a SolarSpeeder target race. Aim your racer at a 10cm (4") […]
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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Site Difficulties - sorry!
If you were trying to visit us here Friday/Saturday, you would notice that we were "404" (site down). Sorry about that. Our host ISP is going through some changes that are ...aren't... going as well as they'd like. Sorry about the problems. Shouldn't be nothing that we can't get fixed, as soon as I find […]
Wednesday Links: MarshmallowMatic, Etch ...
So there's one link today that makes my artistic soul happy - it is the laser-controlled Etch A Sketch. Although I never owned an Etch A Sketch (some smarty pants might say right here that in Russia we used rusty nails to draw on cardboard instead), but the idea to draw with a laser beam […]
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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.