Canada Post orders will not be shipping today due to the issues with some of their online tools. We apologize for inconvenience.
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
Friday New Product: Toolbag, Digital San...
Today we have some fun stuff to play with, mainly Sandbox and Trinket, and their accessories: Sparkfun Tool Bag Kit $34.95 A portable tool bag that includes everything to get you started. Sparkfun Digital Sandbox $74.95 The Digital Sandbox makes learning how to program microcontrollers a snap! Walk through 13 unique and interesting experiments with […]
Wednesday Links: Ballet, Draw-bots and K...
Yet another selection of hand-picked links from all over the interwebs: Visualizing Ballet .. using Lilypad Arduino. Looks beautiful, produces drawing-like results and helps dancers to trace their movements for necessary feedback. (Via Arduino blog) Tiny CNC-bot Beautiful little Piccolo, in it's second incarnation (first one was all clear acrylic). 3D printed Katana Case Is […]
Shipping Dates & Pre-Holiday Megapo...
Ok, we won't lie - we have a lot of content to show you today, so we're going to jump right in, starting with... Shipping Cutoff Dates It's getting down to the wire if you want to get a few last-minute gifts for Christmas. Here are our cutoff dates for submitting an order and still […]
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.