iPhone App to activate an external circuit (Switch)????

Discussion in 'iOS Apps' started by Bjmitch, Sep 25, 2013.

  1. Bjmitch macrumors newbie

    Aug 13, 2013

    Is there an app, or is it possible to create an app, that can activate an external switch via the charging cable.
    Basically I want an app where the iPhone has a countdown and at zero activates a solenoid switch ??

    Thanks in advance
  2. CylonGlitch macrumors 68030


    Jul 7, 2009
    While it can be done, it isn't the easiest way actually. You'd be better off creating a WiFi based switch or a Bluetooth one. Then the app would be almost trivial to write. Using the charging cable requires additional work and the app would have additional restrictions on it. If you had a developers account, and some little knowledge of circuits you could hack together a WiFi based one in a few hours.

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