Ahoy! Avast! Listen up me hearties, because we have a few important things to cover before we meander on to our weekly dose of Cool Links. First off... Solarbotics will be closed on Monday, May 20th. We're not sure who this Victoria broad is or why she decided to give us a holiday named after […]
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
Good Friday & Canada Post
This is a quick note to let all our customers know that Canada Post will not be shipping on Monday. And we are closed tomorrow March 30th for Good Friday!
Solarbotics at RoboMaxx, Robothon
We're making the trip out to Robomaxx in Grants Pass, Oregon October 11-12. Gonna be there? Hunt down the dude in the cowboy hat wearing the "Solarbotics" Shirt. That'll be me. Maybe I'll have samples of our gearmotors burning a hole in my pocket. If it isn't me, tell him to give back my hat […]
New Product: Sensors
Seeed Grove - IMU 9DOF V2 $18.23 The Grove 9 degree-of-freedom (DOF) module features the MPU-9250, and is an easy-to-use all in one module from SeeedStudios. Teensy Prop Shield LC $13.00 The Prop Shield LC is the stripped-down version of the Teensy Prop Sensor Shield (motion sensors removed) Prop Shield With Motion Sensors $27.00 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.