how to wire a 5-way navigation switch

Discussion in 'General Electronics Chat' started by Msahyouni, Feb 19, 2012.

  1. Msahyouni

    Thread Starter New Member

    Feb 16, 2012
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    0
    hello. again,

    i'm using this navigation switch from farnell (MULTICOMP - MCTT5-V - NAVIGATION SWITCH, 5WAY, MICRO SMD) and i cant seem to find any application notes for it or how it is that i should connect this to my micro-controller. any help would be appreciated.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    Did you see the datasheet at the farnell / newark pages?
    I have copied it and attached it for you.

    Bertus
     
  3. Msahyouni

    Thread Starter New Member

    Feb 16, 2012
    9
    0
    yes i have. i made the footprint from this datasheet and i do see the circuit i believe you're referring to, but. i don't really know how it should be connected.
    i'm assuming that all the 4 G's go to ground, and that the 5 COM pins go to the micro-controller, but what about the rest of the pins?!!!
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,388
    1,605
    Each switch is a SPST type and both terminals come out on separate pins. If your micro has built in pull up resistors ground one end of each switch and connect the other to each input. If your micro doesn't have pull ups add some externally.

    Or do the reverse, switches go to Vss and use pull downs.

    Grounding the 4 G's seems appropriate.
     
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