Well, last week I told you that I'd have (and I quote) "something more exciting and substantial for you." So I'd like to take this opportunity (on behalf of the other fine folks at Solarbotics) to welcome the newest addition to the team, Tom! He'll be heading up purchasing and finding neat new toys 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
New Calgary Robot Club
This Thursday (October 18) is the inaugural meeting of the Western Canadian Robot Society, Room MD213 7PM at the Southern Alberta Institute of Technology (SAIT). We're hoping to revive the interest in the local robot scene, as Calgary already has one of the biggest robot games in the world, and it's a killer center of […]
Wednesday Links: Transparent Aluminum, G...
Transparent Aluminum Well, technically not exactly aluminum, but aluminum-based ceramic called aluminum oxynitride. Still with quite magical properties. (Via Makezine) Concealed Layers of Product Life Renee Verhoeven's grad project explores the relationship between anatomy and mobility in the series of gloves, using laser cutting. (Via Mocoloco) Asian Snack Enamel Pins These lovely pins by giantrobot.com […]
Oh, Right. We're Closed Monday, Septembe...
Whoops, we totally forgot. Tomorrow is good ol' Labour Day-bour, and you know what that means. Yup, we are closed on Monday, September the 3rd. You know, exactly how we just said in the post title. So the same stuff as usual - submit orders, leave messages/emails. We'll pick things up again and resume order […]
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.