[OT] PIR for room: battery power?

Discussion in 'DIY Computers' started by Lem, Jun 5, 2004.

  1. Lem

    Lem Guest

    I want to get a dummy PIR sensor to put in a room. The sort of
    thing which has an LED that lights up when someone is in the room.

    Can this sort of thing be self-powered using just a few battery
    cells?
     
    Lem, Jun 5, 2004
    #1
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  2. Lem

    Tx2 Guest

    Why get a dummy when you can get the real thing for very low cost?
    http://www.grandoffers.co.uk/acatalog/Security_Products.html
    Probably.
     
    Tx2, Jun 5, 2004
    #2
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  3. Lem

    Rob Morley Guest

    If it lights up when someone is in the room then it's not a dummy.
    A quick google shows that Maplin do one for a tenner that runs on 17mA
    at 9v, and you can get a PP3 NiMH rated at 250mAh for a tenner. So get
    a couple of PP3s and it will work fine if you don't mind changing and
    charging the battery twice a day :)
    What does this have to do with computers?
     
    Rob Morley, Jun 5, 2004
    #3
  4. Lem

    Tx2 Guest

    He would be using one when in the room?

    ;-)
     
    Tx2, Jun 5, 2004
    #4
  5. Lem

    Lem Guest


    Is the power consumption "horrible"?

    What does this have to do with computers?

    I wrote [OT] in the subject.
     
    Lem, Jun 6, 2004
    #5
  6. Lem

    Lem Guest

    I meant that it was dummy in the sense that it was not connected to
    an alarm. It;s a sensor but not an alarm sensor - IYSWIM.
     
    Lem, Jun 6, 2004
    #6
  7. Lem

    Rob Morley Guest

    So you know you shouldn't be posting it to PC groups. Why did you then?
     
    Rob Morley, Jun 6, 2004
    #7
  8. Lem

    Lem Guest


    Don't troll me, mate. You know what OT means and how it is used.
     
    Lem, Jun 8, 2004
    #8
  9. Lem

    Tx2 Guest

    [...]

    You fuckwit ... by that conclusion, i can post a message in uk.comp.*
    groups about my fucking hamster collection, so long as i prefix it with
    OT

    Learn how Usenet works sunshine.
     
    Tx2, Jun 8, 2004
    #9
  10. Lem

    Bob Eager Guest

    As you say, OT. Please post in an appropriate newsgroup - it really
    isn't that hard.
     
    Bob Eager, Jun 8, 2004
    #10
  11. Lem

    Bob Eager Guest

    Yes, it's used as an excuse. As you did.
     
    Bob Eager, Jun 8, 2004
    #11
  12. Lem

    Rob Morley Guest

    Very droll, I'm sure.
    Yeah, by twats who can't be bothered to find the right group to post to.
     
    Rob Morley, Jun 8, 2004
    #12
  13. Lem

    Sandy Guest


    *yawn*

    I don't think we need your personal theories on life.
     
    Sandy, Jun 11, 2004
    #13
  14. Lem

    Lem Guest

    When you see "off-topic" or OT then maybe you shouldn't read it if
    it causes you a problem? You knowit will be off topic.
     
    Lem, Jun 11, 2004
    #14
  15. Lem

    Bob Eager Guest

    Tough.
     
    Bob Eager, Jun 12, 2004
    #15
  16. Lem

    Piotr Makley Guest


    Total crap.
     
    Piotr Makley, Jul 8, 2004
    #16
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