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DOOR BUZZER THAT CALLS A SPECIFIC NUMBER

Discussion in 'General Electronics Discussion' started by Adrian North, Mar 18, 2017.

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  1. Adrian North

    Adrian North

    1
    0
    Mar 18, 2017
    I'm on a ship and everyone within my mess has a mess number. I'd like to build a door buzzer where the person buzzing the door buzzes the number of the person they want. That number will come up Ina screen in the mess. If that person is in then you push a green button. If they are not then you push red to state not in.
    To select the number required, there will be a list outside the mess with everyone's numbers. Type the number and push call.
    The screen I was thinking of a bingo number display or something
     
  2. Minder

    Minder

    3,076
    657
    Apr 24, 2015
    How many digits per member is used?
    A μp resolution would be fairly simple, how is your electronics?
    M.
     
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