8 Replies Latest reply on Aug 26, 2020 6:55 PM by goatyhead

    Hack old vending machine touch pad to control LED lights

    goatyhead

      I am converting an old vending machine into a box you can sit in and i wanted to hack the vending machine touch pad to be able to change the lighting patterns of LED strips i want to mount inside the box.  the touch pad has 21 buttons, and a 12 pin attachment.  (i attached a photo of it).  I am  a newbie at electronics and it was hard to even find a place to ask a question like this.  Any help will be appreciated.

        • Re: Hack old vending machine touch pad to control LED lights
          genebren

          Mike,

           

          These switches are usually connected as a matrix of rows and columns, with the switches connected between them.  Like this:

          switch pad

          Using an ohm meter, connected between a column and a row, press the switches until you see a low ohm reading.  Just guessing from the image of the pad/connector, that the three pins towards the right might be the columns and 7 or the 8 pins to the left might be the rows.

           

          Hopefully this will help you get started.

          Good Luck!

           

          Gene

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