We've got a new BEP application ready for you users of the Bicore Experimenters' PCB: The two motor Servocore Walker! Use two unmodified servos to set endstop and duration characteristics, slave them like regular bicores, add an IMx reverser, and you're trotting along!
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
BIG Solar cars in Calgary tomorrow!
The America Solar Challenge finishes here in Calgary tomorrow (July 27) betweein 11 and 3:30pm! The teams are coming up over McKnight Blvd., which isn't far from our offices. We'll be out watching them go by for a few hours tomorrow, so if the phones don't get answered for a bit, you'll know why. Go […]
Make was a blast... but now onto the Hol...
Wow, has it been that long already? The MAKEr Faire in Austin was beautiful, and interesting. Funny how we saw many Texans driving along with their windows up, while us two Canadians were wearing shorts with the top down on our rental. Interesting how people adjust to different climates! The MAKEr Faire wasn't quite as […]
Minor Additions and New Links
Boy, there's work to do on new websites. Link checking, spell checking, image links - all sorts of crap that doesn't have anything to do directly with robots! Even so, we've been able to put up a few new images of Mark Tilden's "Projectorbots" on the Photovores page. Yuck. Must do something about how hard […]
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.