Hey, today's cool links are so cool that nothing need to be said in their defense (except for that Thursday is new Wednesday now!). At all. Anyone, try to prove me wrong! Here, you can't. I thought so... So enjoy this truly exquisite selection, and next week we're gonna bring you more on our softest […]
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)
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Happy Yew Nears!
This is just a subtle reminder that Solarbotics & HVW Technologies will both be closed January 1st and 2nd (Thursday and Friday), while we're out fighting raging hangovers being productive members of society. We hope 2008 treated all of you well and that 2009 will be even better. And if it isn't, well... Once we […]
Solarbotics at MakerFaire Bay Area
We are excited to announce that it is now official - we are going to the MakerFaire Bay Area! Solarbotics will be in the Maker Shed May 17 & 18, 2014 with some brand new product. Come check it out if you are around.
New Kits: The Spazovore and the SunSwing...
Yup, we've got a few new kits ready, the Spazovore beginner's kit, and the SunSwinger Pendulum kit. We're pretty happy with both of these kits, so scroll down a bit, and read about them below!
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.