Well today we are presenting things! Here's how they work. GSM shield comes supplied with a sticker that you can draw a little arrow on it, and then you mount the shield on a stick, and it will show the direction of where you have to go. To set the direction whisper your exact latitude […]
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 Products!
We've been busy gathering new BEAM products, and now with the release of the new website engine, we're able to finally post them! New: CP.047F - 0.047F 5.5V capacitors CP10F - 10F 1.6V capacitors (return of an old favourite!) MCM2 - a new metal cassette mechanism with very cool parts VPM - a tiny disk […]
Starry Night Pendant Assembly Guide
We've already blogged about the Technology Grad Dresses, which are accompanied by the Starry Night Pendant as a perfect finishing touch to complete the outfit. Since then, we've upgraded and improved the Pendant design to make it a fully documented kit, rather than just a bundle: The 2xAAA battery holder offers longer life, less cost […]
Solarbotics at MakerFaire YYC
Are you located in or around Calgary? Do you like cool projects and neat-o people making neat-o things? Are you looking for something mega-awesome to do this weekend? If you answered yes to all (or any) of these questions, we have some good news for you: The Maker Faire Calgary is happening this weekend. There'll […]
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.