In my recent wanderings in the world of overly-cheerful financial advise, I stumbled upon this budgeting theory that says that to feel comfortable about your moneys, or lack thereof, you gotta be living on your last month's earnings. Let's leave out the question of how anyone would pull it off, and just say that I […]
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
Monday New Product: Grove, Raspberry Rel...
Grove - 4 pin Female Jumper to Grove 4 pin Conversion Cable (5 PCs per Pack) $4.95 4 Pin jumper wire for easy Grove-to-Arduino connections. Infrared LED Emitter $0.50 Standard sized T1-3/4 infrared emitting LED. Raspberry Pi Relay Board v1.0 $29.40 The Relay Shield contains four high quality relays and provides NO/NC connections to control […]
Canada Day Holiday
Solarbotics will be closed for the July 1st Canada Day celebrations. We gotta let our people have fun some of the time...
Solarbotics at the Calgary City Teachers...
Solarbotics will be at the Calgary City Teachers' Convention Thursday & Friday February 11-12, 2016. We will demo a variety of educational kits for teachers to use in classrooms, including introductory kits to develop skills in programming, mechanical construction, and soldering. Come put a face to the name at booth 326 and find out how […]
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.