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

August 9, 2018
Project: Switching Beds for a Better Cut

We laser lots of wood and acrylic... like seriously, it's hundreds if not thousands of sheets per year. This volume of throughput tends to cause the lasers to build up a lot of gunk and debris that needs to be cleaned on a regular basis. Besides being safer, it reduces the "flash" marks which are […]

September 3, 2010
Closed Mon, Sept 6th, New Stuff

HEY! YOU! WE'LL BE CLOSED FOR LABOUR DAY AND THERE AIN'T NOTHIN' YOU CAN DO ABOUT IT! BAHAHAHA! *Ahem* It's true. On the day called Labour, we will be doing anything but.  Why is that? Nobody knows. But a day off is a day off, so we ain't complaining. Standard stuff applies - we'll answer […]

February 20, 2010
More Temperate Sensors

Alrighty folks, here you have it. We've just doubled the amount of items in our temperature sensor category by adding the following: Temperature Probe Phidgets Precision Temperature Sensor Sensirion Temp/Humidity Sensor Thermocouple Kit DS2760 DS18B20+ Temperature Sensor TMP36 Temperature Sensor And that pretty much rounds out all the temperature sensors we have planned to make […]

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