Winter is not quite here yet. But close. It’s the second day of the last day of summer in 2013 today, according to the calendar at least. So lets prepare to that early by making sure all the new products are looked at. Now, how that makes sense? I am not sure. This was just […]
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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Maker Faire, Nunchucky, PumLantern
WOW! What a week! Most of us have returned from Maker Faire, where we had a fantastic time. We met a lot of great people, saw loads of neat projects and displays, and got a chance to take in some beautiful California weather. We're absolutely exhausted after an insanely long and busy weekend, but we're […]
New Product: SeeedStudio
Seeed One Wire Temperature Sensor $7.97 For simple and easy temperature measurement using the 1-wire protocol with a prepared DS18B20 sensor. Adjustable IR Reflection Sensor (3-80cm) $9.32 This panel/plate mount IR reflection sensor has a 3-80cm threshold detection range. Grove - High Temperature Sensor $12.02 This isn't a plain outdoor thermometer - it has a […]
Sumovore with Bad Attitude?
Has anyone else have reports of attitude problems with the Sumovore?
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