We've had some requests about our own demo Nano robot sumo "BittyBad", which uses a pair of GM15 gear motors. On the GM15 detail page, you'll see a picture of it! It features 2 GM15 gear motors, two 90mA/h LiPoly 3.7V batteries (in series), two "ProxDots" objects sensors, a pair of edge-sensors and a (gasp!) […]
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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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.