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 10, 2016
Canada Post Web Services Interruption

Due to scheduled maintenance by Canada Post on their Shipping and Tracking Web Services page we will be unable to provide shipping estimates between 7pm MDT on Saturday, June 11 and 12am MDT on Sunday, June 12. We apologize for any inconvenience this may cause.

July 7, 2005
New Solarcell, the SCC3766

Ah, another new solar cell! See? There is a solar aspect to Solarbotics! Come check out the SCC3766 - it's a powerhouse!

November 29, 2011
Ardweeny & Strandbeest Make An Exce...

So we've just released a ton of awesome little bundles for our Ardweenys, and you're thinking "Wow, what would I do with all those?". Well friend, why not build a Strandbeest with an Ardweeny for a brain? For those few who aren't familiar with a Strandbeest (or don't know it by name), they are the […]

April 20, 2012
Seeeeeed Stuff

HELLO EVERYONE, AND WELCOME TO THIS WEEK'S EDITION OF STUFF THAT'S NEW. But before we get started, how about some light-hearted entertainment, yes? Chances are you've heard of the Toronto International Film Festival. It has something to do with those fancy moving pictures that seem to be all the rage these days.  You might recognize […]

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