Remember the other week when we mentioned how the Arduino Parts category was looking rather thin? Well, we've gone ahead and fattened it up a bit with the following new items: 16MHz Through-Hole Crystal for Arduino Ardubot Bare PCB Barrel Power Jack 2.1mm Connection You might be wondering what the heck does a power jack […]
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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Christmas Bundles!
My marketing team has been throwing (ouch!) erasers at me (ouch!)until I get this put online: Not sure if you should build or read this winter season? Combine the two! Get the "Junkbots" book and a HexPummer, Pendulum, or SolarSpeeder kit at a combined price that saves you money! (See below in "Featured Items")
Friday New Product - Grove and RGB LED B...
Grove - 2-Coil Latching Relay $12.84 The Grove latching relays are interesting because they take a pulse to toggle their state, which it maintains even after a power cycle. GrovePi Starter Kit for Raspberry Pi $116.87 Carrying a GrovePi+ board together with 12 carefully selected Grove sensors with 10 pieces cables, this starter kit gets […]
Mmmmm... Sandwich PCB's!
David Cook of the Robot Room asked us if we'd carry the partner PCB's for his book 'Robot Building for Beginners'. As we're an enthusiastic fan of this excellent book, we agreed to carry it for him. (even though we don't sell the book...yet!) Please note: You require a copy of this book to successfully […]
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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.