Question in GSM shield

Discussion in 'Wireless & RF Design' started by brian25, Aug 28, 2013.

  1. brian25

    Thread Starter Member

    May 13, 2013
    37
    0
    hi sir i'm using a SIM900D Gsm how to automatic turn ON the gsm when there is a power failure without pushing the button.?? tnx
     
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