Hi all. For all you Sumovore-owners, just a note to let you know that the new Atmel-WinAVR code is online (Atmel brainboard page under resources). Just some tweaks to make it compatible with the latest versions of WinAVR. Also, Dan Peirce has ported the JAL portion of the '877 brains to the Hi-Tech PICCLite compiler, […]
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
Calgary Mini Maker Faire
... is over and it has been great. The weather cooperated, TelusSpark Science Centre grounds cooperated, squirrels cooperated, people checking out our booth were awesome, every single one of them. Check out some photos of the event on our Flickr stream. And our Marble Machine got featured in this great video by Paul Spenard: Not […]
Interesting BEAM Site
My weekly web-crawler popped up with this interesting link not long ago. Nicely put together, nice photos, nice group of 'bots! Simon Fraser's Robots
New Product: Adafruit Feather Boards �...
Adafruit FeatherWing Proto - Prototyping Add-on For All Feather Boards $6.95 A Feather board without ambition is a Feather board without FeatherWings! Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0 $27.80 Feather M0 Development Board - Thin, Light, Powerful! Adafruit FeatherWing OLED - 128x32 OLED Add-on For All Feather Boards $20.85 This is 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.