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Basic Stamp alarm — Parallax Forums

Basic Stamp alarm

MacGeek117MacGeek117 Posts: 747
edited 2005-08-14 18:57 in Robotics
I'm working on an alarm using the BS2. It will sense a beam of IR across a doorway
and if that beam is broken, the BS2 will emit a 4000 Hz tone for 1 second.
bugg devil.gif

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So many projects, so little time.

Comments

  • MacGeek117MacGeek117 Posts: 747
    edited 2005-01-23 21:44
    Note: you MUST read the text.
    bugg

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    So many projects, so little time.
  • Jon WilliamsJon Williams Posts: 6,491
    edited 2005-01-24 15:16
    You might consider using the PIN definition to make the program easier to update or incorporate into other projects.

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    Jon Williams
    Applications Engineer, Parallax
    Dallas, TX· USA
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-01-24 20:45
    Thank you, Jon!
    bugg scool.gif

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    So many projects, so little time.
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-01-26 02:21
    Guys, I made a revised version of the original software.
    The Tx is a 74LS04 osillator circuit.

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    So many projects, so little time.
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-03-29 14:19
    OK, I did it again. It works beter now!
    bugg

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    Boe-bot: $229

    Toddler: $249

    Learning Google is your friend: priceless
  • The_N3rdThe_N3rd Posts: 34
    edited 2005-06-03 20:03
    I tried the same thing, except that I used a laser pointer running off of a AC/DC power supply, and a·photoresistor to detect if the beam was interrupted.· When it· was it set off an alarm that didn’t turn off.·

    tongue.gif··

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    the NERD, Kelie B.


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    ·
    · If electricty comes from electrons, does morality come from morons?
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-06-15 00:09
    Thats the point! Just press the reset button.
    bugg

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    Boe-bot: $229


    Toddler: $249

    Learning Google is your friend: priceless
  • andy11667andy11667 Posts: 26
    edited 2005-07-13 03:40
    i would like to do this can i do it with the boe bot board of education
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-07-26 22:28
    Yes you can.
    bugg

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    Boe-bot: $229


    Toddler: $249

    Learning Google is your friend: priceless
  • christian_hahn13christian_hahn13 Posts: 30
    edited 2005-08-05 20:29
    I had actually tried this once, but instead of using a tube to focus the IR led I used an old camera lens.blush.gif

    This significantly increased the accuracy of the beam.freaked.gif
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-08-12 02:08
    I have posted a schematic of the project.

    bugg

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    Boe-bot: $229


    Toddler: $249

    Learning Google is your friend: priceless
    2160 x 1660 - 23K
  • RobbyRobby Posts: 5
    edited 2005-08-13 11:01
    Hi gyes.This is my first time in this forum.I found it excellent.I am from greece .So ,my english are not very good.I would like to ask if we can use 2 ir leds in alarm.What do you think?THen the alarm will be better .in addition i have a circuit than can make the piezospeaker stronger.
    559 x 435 - 60K
  • Tronic (Greece)Tronic (Greece) Posts: 130
    edited 2005-08-13 14:05
    Robby, you can use up to 7 IR pairs (LEDS - DETECTORS) or up to 15 simple photointerupters detectors to armor all over your place if you like!!

    The only problem I see is all the wiring along the house making your wife go crazy!!! lol.gif
    ·
  • Beau SchwabeBeau Schwabe Posts: 6,545
    edited 2005-08-13 15:56
    Robby,

    If you want to increase the volume of a "raw piezo" (i.e no internal piezo circuitry), then
    see my reply in the "Stamps in Class" section several months ago about amplifying a piezo speaker.

    http://forums.parallax.com/showthread.php?p=464410



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    Beau Schwabe

    IC Layout Engineer
    Parallax, Inc.
  • RobbyRobby Posts: 5
    edited 2005-08-13 16:32
    I hadnt thought of this.we can put more than 2 ir leds.so ,thanks for the help on amplifying.In addition we can put a microphone and other sensors.the only thing we've to do is·to make the suitable programm.

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    DONT REST UNTIL YOU BEAT THE BEST
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-08-14 18:57
    I have also posted a SX version.
    bugg

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Boe-bot: $229


    Toddler: $249

    Learning Google is your friend: priceless
    2160 x 1660 - 25K
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