We're teaming up with Brett Coulthard of Saskview.com to get their version of the Useless Machine put together as a parts bundle. We just finished it Friday night, and quick-posted tweets & a few photos of it, and are shipping today! What comes in the bundle? Pretty much everything you need to successfully build a […]
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
Cool Link Wednesday: CD-less CD Album, A...
We missed last week's Cool Links, so we'll empty our backlog and throw a few extras your way. 1-Bit Symphony This whole album is chiptunes all done on a microcontroller and placed in a CD case. The album/cover art is actually what makes the music. Ted Talk - Massimo Banzi: How Arduino is open-sourcing imagination […]
Annual Solarbotics BBQ RSVP
Hi all. It's coming up time for the annual Western Canadian Robot Games on May 13th, and as per usual, Solarbotics will be hosting our post-event wind-down. Interested in coming? Let us know here!
Propellor, Maker Faire
Welcome ladies and gentlemen, to a special edition Evening News Post! That's right, it's way past the magical closing time here at Solarbotics but some of us are trudging onward. To what end, you wonder? Well, if you've seen that shiny orange promo banner up top you'll know why. MAKER FAIRE! Yup, just like the […]
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.