We are going places! And coming back! And going again! Does that sound familiar? I think I said that before. Yeah, that’s what we do, we are unstoppable indeed. In this case, we are very excited to be going to the Open Hardware Summit at the Massachusetts Institute of Technology as a really soon – on […]
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
Arduino Shields
As we all know, the 'A' in 'August' stands for 'Arduino'. So it's with great sorrow that this will be our last mega Arduino-centric update. We'll still be adding to our selection, but not in as massive amounts. The Arduino Components category is still rather sparse, so hopefully that'll see some love soon. But in […]
Monday New Product: GPS Logger, Cables a...
Adafruit Ultimate GPS Logger Shield - Includes GPS Module $61.00 Brand new and better than ever, we've replaced our Adafruit GPS shield kit with this assembled shield that comes with an Ultimate GPS module. Redpark L2-RJ45V - Lightning to RJ45 Cable $82.80 Connects a Lightning iPhone, iPad or iPod touch to the console port on […]
Wednesday Links: Tattoos, Laser Cutting ...
Temporary Tattoos to Monitor Vitals An lighter more wearable alternative to FitBit (Via Beautiful Decay) Laser-Cut Wood Illustrations Layering laser-cut wood taken to a whole new level, by Martin Tomsky (Via Colossal) Tiny V8 Engine Out of Paper Paper can be exceptionally sturdy, especially when strengthened by glue. By Aliaksei Zholner (Via Gizmodo) REM Detection […]
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.