150mm Futaba-style Servo cable, Double Female $1.95 Just a standard 0.1" pitch Futaba-style servo jumper cable, with female connectors on both sides. JST XH 2.5mm - 3 Pin plug & 100mm cable set $0.65 The JST XH 3-pin header & cable set. 100mm long, 2.5mm pin pitch. Raspberry Pi GPIO Ribbon 40-pin Cable, 6" long […]
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 BIOBug Footage
We've just recently been given the go-ahead to unveil more Wowwee BIOBugs - the toy that Mark Tilden had direct involvement in! This is footage we shot while down in New Mexico this Spring at the 2001 LANL workshop. The first video shows the BIOBug Beetle's ability to maneuver and respond to obstacles. The second […]
Weekend tidbits
Greetings my fellow humans! And salutations to my not-so-fellow alien amigo! There are a few small tidbits of news this weekend: First, we received our shipment of new Herbie PCBs! Hurray! This means that you can now get Herbie the Mousebot in all four colours - red, black, blue or white. They're all in stock, […]
Push Pin Videos
We've had some requests on exactly what do the pushpins do. So, we added videos for two of them. Push Pin 1 (Masher Point) Push Pin 3 (Chisel Point)
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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.