On the above mentioned day (tomorrow) due to the plague/cholera/SARS (depending on the employee) we are taking a break from processing and shipping orders here at Solarbotics; the overnight orders will be shipped as usual. We apologize for the inconvenience and assure you that none of the nasty bugs will follow with your order. We […]
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
DIY LED Fosshape Horns
A handy tutorial explaining how to put together the RGB LED Horns. Make your own, or get a kit with everything included (except for the paint). Supplies: Fosshape 300 2 x slow scroll RGB LED 2 x coin cell batteries conductive thread 2 x coin cell battery holder - sewable 2 x pieces of velcro […]
Belated Xmas list...
Ever wonder what an evil (toy) genius wants for Christmas? The goons at GadgetMadness asked Mr. Mark Tilden, father of BEAM Robotics and the RoboSapien line of toys from Wow-Wee... (Ok, so I was too busy over the holidays to notice the link - sorry!) Read More...
Project: Experiments in Watermelon Filam...
It takes a while to get to know all the quirks of your 3D printer and filament well. We thought we'd add to the knowledge base and share what we've learned about using the eSun 1.75mm PLA filament in Glass Watermelon Red on our Kossel Pro delta style 3D printer.
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.