Grove - 4-Digit Display $7.25 4 digit displays are usually a 12 pin module. In this Grove gadget, we used a TM1637 to scale down the controlling pins into 2 Grove pins. Wireless USB Adapter $16.50 USB WiFi (802.11b/g/n) Module: For Raspberry Pi and more. Grove - Screw Terminal $3.50 Grove - Screw Terminal with […]
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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New Construction Material!
We now sell Sintra, a lightweight, easy to work with material that comes in a variety of colors including white, red, blue and yellow. Check the link at: Sintra Sales page Sintra is easy to cut by scoring a line with a knife and then breaking it. Glue also works well bonding pieces of sintra […]
Phones Are Back Up
The maintenance was short and sweet, phone connection is restored, please feel free to call!
Robolympics Highlights and Sale
We've received word from Dave down in San Francisco that the events are now over and that both Grant and Dave of Solarbotics have placed second and third in the mini-sumo competition!!! We would like to send our congratulations to them, and also to sneak some product out the door while they're still away and […]
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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.