So as some of you have noticed our new site went up yesterday, but unfortunately not without some issues. Today is a day of bug hunting, (which makes the Weyland-Yutani shirt I'm wearing even more appropriate) and thanks to the efforts of those of you who have taken the time to email me I've been […]
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
GM5 Escaps are back (for now)
Well, we've got a limited supply of GM5(b) escap gear motors available. These really sold quick last time, so get them while you can! See you at the Western Canadian Robot Games tomorrow!
Fireflies, Bundles, and Motors
Technically, winter starts with the Winter Solstice that occurs on December 21st. But we're pretty sure that whoever decided that is wrong, because it's starting to feel pretty darn cold out there. And to keep things warm, what do you need? Movement. And how do you make movement? Motors. So today we have range of […]
New Solarcell, the SCC2433a
In our continuing quest to find the successor to the Sunceram throne, we invite you to welcome the SCC2433a solarcell! It's the little brother to the SCC3733, with similar polycrystalline & epoxy construction. It's quite the power-house in direct sunlight, but be warned - the cell arrangment is skewed in favour of current generation, not […]
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.