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

January 30, 2013
Wednesday Cool Links: Guns, Ice, Space F...

Wednesday is here again, and so is our Cool Links Post. So... weather has been discussed many times (including edible objects falling from the sky), so have been fingers, toes, days of the week. That leaves us pretty bare in terms of generally socially- acceptable topics. Hmmm, how about sports! Did you see that latest... […]

July 5, 2013
Friday New Product: All the Books!

After we have survived recent natural disasters like floods and thunderstorms, mosquitoes are another disaster that needs elimination. I don’t like mosquitoes. They are evil vampires lurking in the dark. Flies on the other hand are jovial and rich in protein. Cats usually specialize in them. But cats don’t tackle mosquitoes very well.. . I […]

May 16, 2005
Testimonials...

You know, I had a page of our customer testimonials put together, and I just had the opportunity to sit and read it a bit. That's a pretty impressive page, even if I do say so myself! If you have any reservation about ordering from Solarbotics, I encourage you to take a quick look at […]

March 1, 2018
Product Feature: Bare Conductive Project...

We are always on the search of cool technology, so when we came across Bare Conductive, we thought: pizza! what a great find! Bare Conductive is a design and technology company from the UK that makes sensing tools for engineers, designers, and makers. They produce a line of electrically conductive paint, capacitive sensor hardware and a […]

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.

Copyright © 2024 Solarbotics Ltd. All Rights Reserved
cart