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BLE can be broadcating mode

michael chen36445
Prodigy 160 points

Hi:

 

could BLE support broadcasting for over 7 device?

If answer is NO, how is the tome of minimum interval for the device polling

 

BRs

 

Michael Chen

  • 0
    Prodigy 190 points

    1. I find some broadcast keyword in "BLUETOOTH SPECIFICATION Version 4.0"  ( page164 / 1630)

     Advertising Broadcast Control Logical Link (ADVB-C) and  Advertising Broadcast User Data Logical Link (ADVB-U)

     

    3.5.5.2.3 Advertising Broadcast Control Logical Link (ADVB-C)
        The LE Advertising Broadcast Control Logical Link (ADVB-C) is used to carry
    LE LL signaling between unconnected devices in a given area. This signaling is  the control commands for gathering additional broadcast user data (scan requests) or connection requests. The control link is only carried on the default LE Advertising Broadcast logical transport.

    3.5.5.2.4 Advertising Broadcast User Data Logical Link (ADVB-U)
      The LE Advertising Broadcast User Data Logical Link (ADVB-U) is used to carry LE advertisement broadcast user data used between devices without the need for a connection or LE-U between the devices. The user data link is only carried on the default LE Advertising Broadcast logical transport.

     

    But i do not know it mean "BLE support broadcasting for over 7 device".

     

    2.how is the time of minimum interval for the device polling

    -> I think it need  625 *2 micro second, but i am not srue in BLE.

    3. Beacon  is master-to-slave slot broadcast.