Our offices are closed on Monday, October 12th, 2015, and back to regular duties on Tuesday October 13th.
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
We want Your Input!!!
We are working on fixing the bugs in the website, along with a number of other improvements. Some of you may already know that we are rewriting the ordering portion, making processing your BEAM needs that much easier. It is approaching it's release very quickly, we are just doing the final testing now! So give […]
Turkey Time! (and new product too)
Woohoo! It's early October, and that means it's TURKEY TIME for us Canadians! We know, Americans have their Thanksgiving in November, but it's so cold here already that it might as well be November. So to celebrate we're releasing the following items: Make: The Fourth Year Collector's Box Set Breadboard Jumper Wire Bundle LilyPad Slide […]
Arduino Uno and Neeeew York City!
We're back from the Open Source Hardware Summit and the Maker Faire! Did lots; learned lots; got lots of touristy things done too. One of the main highlights was meeting and listening to talks by three of the principle members of the Arduino team. They took pity on English-speakers, and named the new revision the […]
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.