After a long hiatus, our PP3 chisel-tip pogo pins are back! And it looks like they're here to stay, so no more drop-outs in supply. I know that we use them for robotics applications, but there's a lot of people using them for other electronics purposes. Now you can get them reliably, and in quantity, […]
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
Black Friday/Cyber Monday Robot Sale
Something Old, Something New, Something... something... Solarbotics!(Happy Turkey Day!) Solarbotics Herbie the Mousebot v2 Kit No turkey here; just a fast robot mouse. Medium soldering skill necessary to build this flashlight-chasing mousebot. $40.00USD / $52.00CAD 25% OFF: $30.00USD / $39.00CAD Solarbotics Turbot Tumbling Robot Kit This medium-complexity retro BEAM Robotics light-seeking tumbling robot is back […]
Wednesday Links: Flying Jellyfish Robot,...
Now, one things got my attention in today's links: aerojelly. Wouldn’t you like to have a pet aerojelly? It flaps, it flies, it comes with a leash, which is a power cord at the same time. The rest of links is accessories that include music for aerojelly, wireless LEDs for aerojelly, and a pack of […]
ScoutWalker III sold out!
Sorry to say that our initial inventory of the ScoutWalker III has sold out! We're trying to get more ready for Christmas, but no promises...
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.