Actually, it's been done, but not this nicely. Those guys at Ecole Polytechnique Fédérale de Lausanne (EPFL) have a nice report on their "microglider" project. They do some fine work! Bah. That picture is too small! Let's look at a BIG one! Ooo! And they have more big pictures here! This one is nice - […]
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
Early Monday New Product Post: Now with ...
We apologize for the late Friday Product Post - Friday night our brains were temporarily eaten out by rabid flying honey badger monkeys. The brains are now successfully returned into place, and here's the freshly renamed Early Monday Product Post. Oh, look, text! It has letters! And words. And sentences. And clauses. And everything a […]
PICAXE stock, soldering tutorial
Well, it's the end of another week, and - Hey! I have something that you might actually be interested in. We've just received some PICAXE inventory, particularly the PICAXE-28 Project Board. So that's now available and ready for us to throw into a box (not literally, of course) and send in your direction. And now that […]
The Many Faces of SAFE
The SAFE (Solarbotics Arduino Freeduino Enclosure) is a marvelous contraption of laser-cut acrylic that makes a complete enclosure for your Arduino project. It gives you a protective shell with enough room for a basic shield, with knock-outs for power and USB connection. It even has a power switch. The big problem with Arduinos and Freeduinos, […]
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.