looking for BT module to communicate with each other

Discussion in 'The Projects Forum' started by ep.hobbyiest, Jan 23, 2017.

  1. ep.hobbyiest

    Thread Starter Member

    Aug 26, 2014
    115
    1
    Hi,
    I am looking for BT module or IC which can be configurable. I got couple of HC-05 module, which can't be configuable. (AT Commands are not working for me).
    I got one more option as CC2640, from TI.
    Which BT module will be configurable to talk with each other.
     
  2. JWHassler

    Member

    Sep 25, 2013
    253
    45
    Everything I read about the HC-05 describes it as a "Master/Slave" device.


    upload_2017-1-23_10-35-50.png
     
  3. ep.hobbyiest

    Thread Starter Member

    Aug 26, 2014
    115
    1
    yeah, you are right. But i brought the module which can not be configurable. PIN no-34 isn't connected to any pin which is used to enable and disable the AT commands.
    Did you tried this module?
    Because i tried and many ppl also. if you google it then you will get to know, what i meant to say.
     
  4. LesJones

    Well-Known Member

    Jan 8, 2017
    1,391
    332
    Are you sure that there is no connection to pin 34 on the board ?

    This is a picture of one of my Bluetooth modules.


    Pic004.jpg


    Pin 34 is the bottom connection on the left hand side of the board and you can see the first part of the track going to what loohs like an SMD capacitor. Does your board look the same ?
    I have never had a problem with HC-5 modules. I did have trouble with the HC-6 modules until I found out that
    all the characters in the AT command have to be sent quicky. (Faster than you can type.) I got round this by using the serial tool on the Arduino IDE. Also typing the command into notepad then doing a copy and paste to a terminal emulator program worked.

    Les.

    Les.
     
  5. ep.hobbyiest

    Thread Starter Member

    Aug 26, 2014
    115
    1
  6. LesJones

    Well-Known Member

    Jan 8, 2017
    1,391
    332
    This webpage should give you the information you requre. All the connections for you to configure your board using AT commands are available on the 6 pin connector.

    Les.
     
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