Discussion Board

Results 1 to 2 of 2
  1. #1
    Registered User
    Join Date
    Sep 2006

    Which signal should be used for an interface?


    I'm designing an external device which output a signal to the phone. A daemon program ensures the continuity of the signal and reports error if the signal is broken or cannot be detected.

    I'm considering either using the battery charging or other data signal available to the phone. If using the battery charging approach, the external device is supposed to output a 3.7V DC current for charging up the phone battery. But looking at previous threads in the forum, seems the detection of the battery charging comes with only 3 status. And it may only refresh the status whenever power on the phone.

    Anyone knows the battery status if the phone is fully charged but the
    charging device is keep connected? Or make use of the DCE Tx/Rx ?

    Thanks in advance.

  2. #2
    Super Contributor
    Join Date
    Jun 2006
    Moscow, Russia

    Re: Which signal should be used for an interface?


    You can get more detailed info about battery charge level with AT-command AT+CBC. You get a response in the following form: +CBC: <bcs>,<bcl>. It means (from 3GPP TS 27.007 V7.0.0 (2006-03) spec):
    0 MT is powered by the battery
    1 MT has a battery connected, but is not powered by it
    2 MT does not have a battery connected
    3 Recognized power fault, calls inhibited
    0 battery is exhausted, or MT does not have a battery connected
    1...100 battery has 1 100 percent of capacity remaining
    I hope it helps you a bit...

Similar Threads

  1. Attenuating/Limiting Bluetooth Signal
    By stevenjames in forum Bluetooth Technology
    Replies: 3
    Last Post: 2006-03-21, 06:00
  2. code SMS to send the information of the signal strentgh
    By Léo in forum Symbian Networking & Messaging (Closed)
    Replies: 1
    Last Post: 2005-10-30, 07:56
  3. IPhoneBook3 interface
    By AlexeyK in forum PC Suite API and PC Connectivity SDK
    Replies: 1
    Last Post: 2004-05-09, 09:27
  4. NMSSDK 1.2 MM7 interface
    By 129059 in forum General Messaging
    Replies: 0
    Last Post: 2003-08-08, 13:19
  5. N30 iocontrol interface
    By patgraf in forum Nokia M2M
    Replies: 2
    Last Post: 2002-10-25, 08:13

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts