The University of of Illinois at Urbana-Champaign has been running a BEAM-style mechatronics program (GE100) for the last few years. The purpose of the class is to build a self-powered device that can propel itself over both smooth and rough terrain, using a pair of servos and a BEAM-style servo-controller circuit (similar in function to […]
Circuit: Lightstorm
Dave Hrynkiw
July 12, 2007
(PDF Version) GIF Link
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.
Parts required are:
Dark Turn on Circuit
- Solarcell (SB Part SC2433)
- 1F 2.5V (SB Part CP1.0F) capacitor
- 1 Germanium Diode (SB Part D2)
- 100k Trimpot (SB Part RT100k)
- 2n3904 transistor (SB Part TR3904)
- 2n3906 transistor (SB Part TR3906)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 2 x 1000uF Capacitor (SB Part CP1000)
- 2 x UltraBright LEDs (SB Part UBLED-R)
- 2 x 100k Resistors (SB Part 100k)
- 2 x 22uF Capacitors (SB Part CP22)
- 4 x 0.22uF Capacitors (SB Part CP0.22uF)
- 2 x 2 MegaOhm Resistors (SB Part R2.0M)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 8 x 2n3904 Transistors (SB Part TR3904)
- 8 x CP0.22µF Capacitors (SB Part CP0.22uF)
- 8 x 1k Resistors (SB Part R1k)
- 2.2 MegaOhm Resistor (SB Part R2.2M)
- 3 MegaOhm Resistor (SB Part R3M)
- 3.3 MegaOhm Resistor (SB Part R3.3M)
- 4.3 MegaOhm Resistor (SB Part R4.3M)
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New Product Friday: Introducing the Sola...
Lights. They're so purdy. Whithout 'em, we'd have one heck of a time to find things that would hypnotize us so effectively. So this week we have a few different LEDs that we're now carrying as well as... A NEW KIT! That's right, we're releasing a brand-new Solarbotics item with built-in blinky light technology. The […]
Sumovore 3rd Place at PDXBot!
Just browsing through the results of the last PDXBot in Portland (if you ever get the chance, check it out - it's a quality gig). Anyways, I noticed that the Sumovore "Enterprise" entered by "Azalia Middle School comander" won 3rd place in the Amateur class! Well done!
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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.