Are you on, in, under or around the state of Oregon? Do you have the ability with which to get thineself to Medford, which is located in Oregon, on October the 8th? If you answered 'yes' to most of the above questions, you might want to consider dropping in at RoboMaxx - an event which is […]
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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Site Down for Maintenance March 10
Our website will be down for server maintenance on Sunday March 10th, 2013 between 1.30am to 11.30am MST (3:30 and 7:00 am EDT). We apologize for the inconvenience.
Expo Holiday Market snapshot
Although Calgary Expo Holiday Market that took place over this weekend was not exactly costume-abundant, it was nice to see the finished costume Solarbotics helped to bling up with our SuperFlex LED strings: Analeigh Cosplay's Who of Whoville!
BEP Documentation Update
We've tweaked the documentation for the BEP-MSE1 "Miller Solarengine" to correct a minor error (if you wanted to use the MVSE modification, this is the correct on), and added some circuit specs. Application notes for all the modules are in the works- stay tuned!
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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.