Auto power ON mobile when usb charger is connected

Discussion in 'The Projects Forum' started by easymurugan, Jan 24, 2015.

  1. easymurugan

    Thread Starter New Member

    Jan 24, 2015

    I am using a mobile inside an apparatus with other circuits also. The mobile is powered through USB. I have to power on the apparatus and also tap the mobile ON button during the start. Hence, I have to press two times to switch ON the kit. It is not professional.

    Is there pulse-switch to switch ON the mobile automatically. Hope I am not the first in this word, expecting this sort of solution.


  2. ScottWang


    Aug 23, 2012
    How is the mobile, is it a traditional type, it means that the mobile has button?
    If the mobile has the button then you can using a ne555 to build an auto monostable and the output to drive a reed relay, and the contact of the relay connecting to the button of mobile.

    USB power on → NE555 auto monostable 50mS → reed relay → button of mobile.
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    No matter what you do having a "mobile" in any device is not professional.
    Why don't you simply get a GPS module or whatever you are using the mobile for instead of the whole phone