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    ....another contest that ends on 12212012...:-/

    ....another contest that ends on 12212012...:-/
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    Lots of PIR projects...all are really...

    Lots of PIR projects...all are really good.@Ttailspin...yeah, but 2nd place is just the first loser. :( No prize at work for 2nd. That' what we get for letting the competition watch up post our...
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    No argument here. :)

    No argument here. :)
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    Re: CONTEST: Hack The Halls!

    OK, so here is my holiday project.

    First off, thanks to Parallax for an easy to use, small controller. It made this a snap!

    At work, they are having a Door Decoration Contest, but only gave us...
  5. Re: Questions about how cold temperature affects Parallax PIR sensor #555-28027?

    I was thinking silicon seal or hot glue would be sufficient.

    And, as for covering the lens, that may not be good. Not sure why you are wanting to do that, save for a custom enclosure (??). I was...
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    [solved] Re: PIR Sensor reset time?

    Excellent information. That is what I was looking for. 3 second reset time.

    I have also seen, in my applications, some retriggering on these types of devices. That is, while moving the sensor...
  7. Re: Questions about how cold temperature affects Parallax PIR sensor #555-28027?

    PDF states "Operating temperature: 32 to 122 F (0 to 50 C)", but I would bet it would be OK, as long as it didn't get wet. Sealing the electronics may be a good long-term solution and allow...
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    [solved] PIR Sensor reset time?

    Looking at the datasheet and a quick forum search, I do not see a reset time for this Parallax sensor.

    Does anyone know what this is? Approximation is fine.

    And by reset time, I mean the time...
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    Re: Terminated: Judgement Day

    Then you just need fewer robots. Robot RIF = Cost savings! Stock goes up! And more junk robot parts for us!
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    Re: Another Robot on the Clearance Aisle

    Opting out of insurance frees up extra cash for robots!

    Got me an ol' Roboquad! I see lots of mods on the interwebs.
  11. Re: Robotic arm uses "positive pressure" to work its magic

    Dart board was impressive. A smaller portable version would be great for bar tricks....
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    Re: Why is the earth's magnetic core steady?

    12212012 :)
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    Re: Lego RCX + BS ??

    http://en.wikipedia.org/wiki/Lego_Mindstorms#RCX

    I agree that pin code can be tiresome, but useful if debug/design is needed. For simple routines such as the RCX can handle, it's more fun to...
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    Re: Lego RCX + BS ??

    Yeah, I've seen that the library has been ported to like 20 different programming languages. I really like the simplicity of the GUI programming, and am not sure what going to another language will...
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    Re: Lego RCX + BS ??

    All good stuff. Yes, the inputs are analog, lots of info on the net for interfacing and customs jobs. I have not taken time to go through all the BS apps though. I think the IR comm is documented and...
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    Re: My wireless robot......

    Cell phone camera? :- /

    Metal box on bot = nicely armoured.
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    Lego RCX + BS ??

    So, I ended up winning that Lego RIS kit at the Goodwill auction for $55. Some guy bid me up over $50!

    WOW. These kits are amazing fun. Very simple. In 1 week I completed 4 projects. Now working...
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    Re: Another Robot on the Clearance Aisle

    No one on this thread is in ATX, so I don't mind postin': Goodwill has auctions at many stores in town....one has a Lego Mindstorm Kit....2 more days (fingers crossed)!
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    Re: Robot cat in progress

    +1 on the PIR sensor.

    Will your cat purr?
    Screetch, hiss and meow would be fun too. Short sound files too!
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    Rat Shack carries Parallax now?

    Glad to see products at the local shack. They said they've had them for about 6 months now.
    (I don't get out much).
  21. Re: which PCB-layouting software freeware or shareware for small projects?

    +1 to EagleCad and ExpressPCB.

    If you are doing volume or prototypes, then go with ExpressPCB, as they will cut your boards for you as well!
  22. Re: Voyager spacecrafts - 14 billion miles since 1977

    Ok, let's take this one step at a time. Glad to get a bite here.

    Current theory dictates that a radio signal is generated by electronics. Whatever circuit you use is used to excite electrons into...
  23. Re: Voyager spacecrafts - 14 billion miles since 1977

    150 kilo years is not really that long.....in the grand scheme of things. Maybe just long enough for an intelligent species to evolve...But yeah....Monty Python's Galaxy song;

    ...
    Our galaxy...
  24. Re: Jetman flies with two L-39C Albatros planes over the Swiss Alps

    Wow. Looks like 4 engines on that wing. Nice landing.

    Thanks for the post.
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    [completed] Re: JD's Binary Clock

    Yeah, that seems pretty good.

    I've heard that said alot, about wristwatches, and I wonder how you really know. The only confirmed clock issue I have seen is my car clock. It's slow by about 10...
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