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Thread: Vending machine: Temp/fan and tilt vibration

  1. Vending machine: Temp/fan and tilt vibration

    I have a snack machine and am really getting tired of people shaking the thing. Its got to the point I had to put up a vandal proof camera and record the thing, but they STILL do it! I'd rather refund their money back double than them damage my machine.
    Using Phidgets:
    I was wondering if I could use a small x86 thin client I have to make an tilt or vibration - alarm. ideally I'd want this:
    a) detect tilt or vibration to the machine beyond a certain amount
    b) log it
    c) set off a audible alarm (OR sound file from computer!!!! LOL) with relay for so many seconds
    d) optional- use a solenoid to lock vendbay shut until alarm resets

    Could I buy a 8/8/8 and a couple of 2 relay boards and a vibration sensor (would that work in this application if I mount it on standoffs to the chassis or would I need the usb accelerometer?).

    Two ways I can see to do all this:
    1)USB
    usb accelerometer - $72
    usb 4 relay board - $58

    2) analog -
    8/8/8 - $77.60
    dual relay - $18.43
    Vibration sensor x2 - $21.34


    Analog would be harder to setup but would be more flexible in the future allowing me to add temp sensors or other analog/digital sensors.

    What do you think?

    or could I use a mercury tilt switch with a 0/16/16 with relays??
    Last edited by bbsux; 02-20-2008 at 08:54 AM.

  2. Re: Vending machine: Temp/fan and tilt vibration

    An 8/8/8 with a vibration sensor would probably do the trick, but the accelerometer would be more precise.

    I would also recommend mounting a paintball gun on top of the machine to tag anyone who shakes it.
    New to the TR Community? Feel free to introduce yourself and show off your projects!

  3. Re: Vending machine: Temp/fan and tilt vibration

    An R2D2 taser would definitely be the best solution. The change slot could open up, and then BZZZT!

  4. Re: Vending machine: Temp/fan and tilt vibration

    I was thinking of getting the lowest amp per shock electric fence and hooking that to the chassis!

  5. Re: Vending machine: Temp/fan and tilt vibration

    You might be able to sell a product like that to other vending machine operators.

  6. #6
    Semicton Guest

    Re: Vending machine: Temp/fan and tilt vibration

    2) analog -
    8/8/8 - $77.60
    dual relay - $18.43
    Vibration sensor x2 - $21.34

    would be cool because in the future you could hook up distance sensor and record if an item dropped while it was being shaked and all sorts of fun stuff.

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