Autumn! Time to gather your nuts, seeds and berries and hunker down for the winter, and warm yourself by the warmth given off by your …new 3D printer. Either as a tool to build your holiday decorations & cookie cutters, or as a gift to your favorite geek or geeklet, NOW is the time to […]
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
2003 LANL Workshop
We've got the official "OK" to open up registration for the 2003 LANL BEAM Workshop in Los Alamos, New Mexico. The 3-day workshop is from May 1-3, with the 1-day following on May 4. Check it out at any of the following links: Direct IP link (until the following DNS entries echo through the web) […]
Make:KW, New Catalogue
Well folks, it's that magical time where we give you some special insight into what's new n' happenin' in the world of Solarbotics. We'll start off by sending our congrats to everyone who participated in the recent Make:KW Arduino 201 meetup. We were proud to sponsor the event by donating some L298 Compact Motor Driver […]
Didel Gears, LilyPad
Alriiiight. This week we've got a small handful of new plastic pinions (not to be confused with plastic onions) from Didel. These little units are great for sliding onto pager motors and mating to other gears. 0.71mm 6-Tooth Pinion 0.81mm 9-Tooth Pinion 0.78mm 12-Tooth Pinion 0.82mm 12-Tooth Pinion And, as promised last week, we've got […]
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.