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

November 24, 2017
Solarbotics at Calgary Expo Holiday Mark...

If you are in Calgary & area this weekend, come see us at BMO Centre Expo Holiday Market. On November 25 & 26, 2017 we are going to be at booth 1314 with our new and all-time favorite gadgets.  The hours of the show are: Saturday 10-6, Sunday 10-5.

April 23, 2018
Moving ActiveTech

As some of you know, ActiveTech is changing locations and merging operations with Solarbotics. The retail store is going to take the space where the former RnD lab was, and we've been working hard to prepare that area for the move-in.

March 18, 2003
Another Junkbots review

We're pretty proud of our book, "Junkbots, Bugbots, and Bots on Wheels", especially with reviews like this!

January 10, 2014
New Product Friday: Arduino Yun and Thre...

Today is Friday. Lets celebrate by using only green towels and omitting the letter R. Or just seeing what new stuff we got: Arduino Yun $71.95 Take a wireless router-on-a-chip, and stick an Arduino Leonardo to it - that's the new Arduino YUN! Evil Mad Science The Three Fives Kit $35.00 Take a venerable 555 […]

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