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)

MORE POSTS

June 29, 2016
Possible Canada Post Service Disruptions

Labour negotiations between Canada Post and the Canadian Union of Postal Workers (CUPW) are currently taking place. In the event that an agreement between the two parties cannot be reached, customers could see a disruption to all Canada Post services as early as July 2, 2016. In the event of a labour disruption, Canada Post […]

April 9, 2014
Wednesday Links: Tetris, Tattoo Music an...

Wednesday's here and we are back with the links of death and depression. I mean, sunshine and happiness, of course. Tetris on the Face of Skyscraper Now the next step would be to play Tetris using skyscrapers... (via Designboom) Robotic Instrument Plays Tattoos as Musical Compositions This is the first time when the musician's repertoire […]

December 23, 2013
Making Something Useless Useful - 2013

The Useless Box is continuing to populate the world with useless... usefullness, and that means it's time for another update on the Make Something Useless Useful project. You might remember we started in 2012 by donating a percentage of past sales of Useless Boxes to Plan Canada. This year we are donating $6000 to assist […]

December 29, 2011
Closed Fri/Mon, Cool Stuffs, Purchaser W...

Well, it's the end of the year apparently. 2011 has kinda withered up and died like some kinda... Food thing that tends to dry up if you leave it out for too long. Like jerky. Or raisins. Mm, especially raisins when they're in oatmeal cookies (shh, don't tell the boss. Anything but a strict chocolate […]

Solarbotics Ltd Logo
Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!

Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.

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.

cart