Project for the summer

Discussion in 'The Projects Forum' started by b.voets, Jun 28, 2014.

  1. b.voets

    Thread Starter New Member

    Jun 28, 2014
    2
    0
    Hey there all,
    Myself and a friend are trying to build a bar (or at least a beer tap) into a working piano. we currently have a servo rigged up to pull the tap of the kegs set up and working. i am using a setup i found ( http://makezine.com/projects/control-a-servo-motor-without-programming/ ) here to use a pot to control the servo but i am looking to make it work by pressing a key on the piano. my thoughts are that i could have two pots both set to the two positions that i need them to be and have it so when you press the piano key it would bypass the first pot that is set to first position and bring the second pot into play. I am not really sure how to do this but i essential just want a way to wire a switch between the two pots and the servo. Any suggestions?

    cheers
     
  2. inwo

    Well-Known Member

    Nov 7, 2013
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    Are pots connected as rheostats?
     
    b.voets likes this.
  3. b.voets

    Thread Starter New Member

    Jun 28, 2014
    2
    0
    Thanks for the reply and diagram. I am pretty sure the diagram i found for this setup uses all three of the terminals on the pots so it wouldnt be as rheostats
     
  4. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
    2,802
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  5. inwo

    Well-Known Member

    Nov 7, 2013
    2,433
    315
    Then use a double throw switch.
     
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