This is was just a Test. This is a test of the Dave broadcasting system. If this was a real Dave, you'd be notified what to do in the eventuality that you met a real Dave. This has been a test of the Dave broadcasting system. *Beeeeeep* Ok, it seems like we've got […]
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 Parts Available
We are now stocking the Microchip PIC16F877A microcontroller individually that is used in our K SV-PIC kit. It is a very versatile and powerful chip, and you don't even need to buy 1000 at a crack! As well, we are selling the motor that is straight out of the GM2/3/8/9. Dontcha just hate it when […]
Phones Are Back Up
The maintenance was short and sweet, phone connection is restored, please feel free to call!
Solarbotics at Bay Area Maker Faire ...S...
Guess what! Like every year, from May 19-20 Solarbotics is going to be at the Bay Area Maker Faire! Well, kinda. While we usually run a full booth to show off all our cool BEAM and Arduino stuff (we even ran a totally rockin' ARDX workshop last time), it unfortunately looks like costs have risen […]
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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.