So... We've finally decided to go all-out and bring over all the inventory from HVW Tech and integrate it into Solarbotics. This is a pretty big undertaking, and as such you're going to need to tip toe around the construction tape and sawdust while we re-arrange everything. How will this effect you? First off, we're […]
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
Web Links Tuesday
Magnetic storage reaches the atomic level The magnetic field of a single atom is read and written, but it's not very stable (Via ArsTechnica) Magnificent Cardboard Airships by Jeroen van Kesteren Beautifully crafted and intricate fantastic ships made of cardboard (Via Colossal) Google X Levi's touch-sensitive denim jacket Embedded conductive threads make it touch and […]
Friday New Product: Galileo, Shift Level...
The new products are back! With more new products! Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit $19.95 Need to move motors but don't want to use up a lot of pins? Try out the I2C enabled Motorshield from Adafruit. Solarbotics I2C Shift Leveler $8.95 This little I2C adapter will have you shifting signals with ease […]
We are Back
We are back, ready to take your orders. Not only are we back but we are ready for a new year with many things to serve you better. We have brought back the SCPD solar cells. Future enhancements and improvements in the online web ordering. Expect future enhancements such as more videos, more data on […]
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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.