We've been working on testing our Sunceram Solarcells for real-world performance. Our first test is under direct sunlight, and we tried our best to get accurate data under ideal conditions - summer solstice, during the brightest hours of the day. As we're located in Calgary (lat:51.050N), Canada, you may get slightly different results due 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
Canada Day - Closed July 1st & 2nd
This just in - our country is awesome. Now, we all know what you're thinking. "Yeah? Well my country is awesome too, and yours didn't even make it to the World Cup!" We certainly can't argue that your country is awesome as well. As for the World Cup... You wanna know what we think of […]
Wednesday Links: Lasercut Robot, Animati...
Now we definitely need these. Spring had died somewhere along the way up north, so sunlight in pills would be awesome. Awesome Tiny Lasercut Robots ...made out of bamboo and fluorescent acrylic (By Junichi Tsuneoka of CHIBIPOCKET, via Ponoko). 3D Printed Candles A likeness of oneself in a shape of a candle - who wouldn't […]
HVW Sale, Useless Machine, Pitsco
Fun fact: As I type this out, I'm doing so not while sitting at my desk, but sitting on it. I highly recommend you try it. Probably not very ergonomic, but hey. When the boss temporarily commandeers your chair, you gotta make do with what you got. So this week we have a few small […]
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.