The SAFE (Solarbotics Arduino Freeduino Enclosure) is a marvelous contraption of laser-cut acrylic that makes a complete enclosure for your Arduino project. It gives you a protective shell with enough room for a basic shield, with knock-outs for power and USB connection. It even has a power switch. The big problem with Arduinos and Freeduinos, […]
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
MORE POSTS
Scheduled Website downtime
I suppose the Internet tubes need cleaning once in a while... Our ISP is scheduling some downtime for upgrades on January 27, 09:00-12:00 UTC (that's 2am to 5am Mountain time here where Solarbotics is). Sorry for the hiccup!
Painted GraviTrack
We always enjoy seeing our products being modified, revamped and DIY-ed, as well as the results of these transformations. Our customer Vera Kark provided us with some thoughtful feedback on adding mechanical tweaks to improve our Solar GraviTrack build and documentation. She also painted the brown MDF of the machine. She used tempera paint on the wood components still in panelized […]
Project: Switching Beds for a Better Cut
We laser lots of wood and acrylic... like seriously, it's hundreds if not thousands of sheets per year. This volume of throughput tends to cause the lasers to build up a lot of gunk and debris that needs to be cleaned on a regular basis. Besides being safer, it reduces the "flash" marks which are […]
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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.