[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
    Lem, Jun 5, 2004
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  2. Lem

    Tx2 Guest

    Why get a dummy when you can get the real thing for very low cost?
    Tx2, Jun 5, 2004
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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
  4. Lem

    Tx2 Guest

    He would be using one when in the room?

    Tx2, Jun 5, 2004
  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
  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
  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
  8. Lem

    Lem Guest

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

    Learn how Usenet works sunshine.
    Tx2, Jun 8, 2004
  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
  11. Lem

    Bob Eager Guest

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

    Sandy Guest


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

    Bob Eager Guest

    Bob Eager, Jun 12, 2004
  16. Lem

    Piotr Makley Guest

    Total crap.
    Piotr Makley, Jul 8, 2004
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