Solarbotics and HVW Tech will be at the Bay Area Maker Faire this weekend! If you have a chance to come out be sure to stop by and say hi, we'll be in our booth all day Saturday and Sunday. Also Dave will be doing a presentation in the workshop area over the weekend, so […]
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
Contest Results, Fresh Wireless Items
So as we mentioned last week, our contest to name our upcoming GVS Ardweeny Backpack had come to a close. We've had a chance to sift through all the submissions, and the results are IN. This would be the part where someone hands someone else a secret-lookin' envelope, but because I can't spot any envelopes […]
It's alive....ALIVE...!
We know this isn't a big deal to average-joe Solarbotics customer, but we are thrilled to have a new website platform up and running for almost a month now. We've still digging through what plugins work and could be improved, so please continue being patient with us. We are posting more holiday sale items, and […]
RC Brutusbot n' Communication Stuff
Help! It's getting colder outside and the trees are starting to shed all over everything. It's quite a mess. It's pretty, but a mess all the same. So we did what anyone would do in such circumstances - we made a small DIY tank platform wirelessly controllable, released a new breakout board, and put together […]
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.