Wondering what Mark Tilden and his crew at Wow-Wee have been up to lately? Thanks to Engadget and the BEAM-mailing list, we can see what they've released at the latest "Consumer Electronics Show" (CES), here on this page and this page. Love the Elvis head... just gotta drop that chip into the monkey head they […]
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
Solar-powered hopping robots? It's been ...
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 - […]
Wednesday Links: MarshmallowMatic, Etch ...
So there's one link today that makes my artistic soul happy - it is the laser-controlled Etch A Sketch. Although I never owned an Etch A Sketch (some smarty pants might say right here that in Russia we used rusty nails to draw on cardboard instead), but the idea to draw with a laser beam […]
Tom Gray's "SpringTail"
Just tripped over this link on the Yahoogroups BEAM mailing list. Nice looking walker - built using our BEP boards too!
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.