Have we all had our fill of Maple syrup and/or fireworks? With Canada Day and Independence Day behind us, we can get on with our regularly scheduled "look at all the new stuff we've brought in" programming. Truth be told, today is actually the start of the Calgary Stampede. Apparently, that's a pretty big deal […]
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)
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Closed Monday the 19th
President's Day / Family day - whatever you want to call it, we're enjoying it outside in the sunshine! See you tomorrow, we promise!
LANL 2002 Workshop Announced!
We're happy to finally officially announce the opening of registration to the 2002 Los Alamos National Laboratories BEAM Workshop!Coming into it's 10th year (10 years? already? Wow...), Solarbotics has been a participant right from the beginning. If you're in the New Mexico area, or are dedicated enough to come out on your own, come to […]
ECRG Sumovore Success!
Just got word from the Eastern Canadian Robot Games that Sumovores SWEPT the top 3 positions of 23 entries in the amateur class mini-sumo (Good job Jess Billers with "Lovebug")! Well done guys!
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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.