Just got word from the Eastern Canadian Robot Games that Sumovores SWEPT the top 3 positions of 23 entries in the amateur class mini-sumo (Good job Jess Billers with "Lovebug")! Well done guys!
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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Temperature Sensors, New Instructable
Woo, we've had a busy week! To start things off, we have a new category - Temperature Sensors! So far it has the following items: Humidity/Temperature Sensor DS1620+ Serial Digital Thermometer DS18B20+ Temperature Sensor Devantech TPA81 8x1 Thermopile LilyPad Temperature Sensor Yeah, it's a pretty bare category at the moment, but we'll be adding to […]
Cool project
Neil Sandstrom from the BEAM mailing list recently posted a notice about his "ShokHead" circuit built from our tutorial. What makes this project a bit different is that he mounted it on a VPM motor, so it's all self-contained. Here's what he says about it: Just finished!!! Check it out it is really small!! http://groups.yahoo.com/group/beam/files/Psyclesam/ […]
Circuit: Lightstorm
Some of you may have found the LightStorm Pummers that Mark Tilden has made using some neat looking plastics. We've built our own variation of the circuit, which is a dark-activated, quad-bicore pseudo-random chaos generated, dual pummer circuit.
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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.