Bluetooth Module Power

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Discussion in 'Wireless & RF Design' started by mattyl2003, Feb 17, 2013.

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  1. Feb 17, 2013 #1
    mattyl2003

    Thread Starter New Member

    Jan 5, 2013
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    An example power consumption of a standard cheap BT module is
    RX Supply Current - 30mA
    TX Supply Current - 40mA
    Sleep Current - 1mA

    Based on this if the module is seeking to pair (not yet connected as phone not in range) is it considered to be in "sleep" mode and only using 1mA or because its sending out a pairing request its classified as TX?

    Trying to clarify at what stage of the process uses what amount of power.

    Thanks
     
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  2. Feb 17, 2013 #2
    bertus

    Administrator

    Apr 5, 2008
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  3. Feb 17, 2013 #3
    mattyl2003

    Thread Starter New Member

    Jan 5, 2013
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    Thanks.

    Yes I have, but it doesnt really differientiate between if "trying to pair" is classified as sleep mode or TX mode and thats a big different in power usage over a 24 hour period.

    Cheers
     
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  4. Feb 17, 2013 #4
    bertus

    Administrator

    Apr 5, 2008
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    Hello,

    In this PDF there is something about the sleepmodes:
    Bluetooth RF Measurement Fundamentals

    In the glossary these are stated:

    and

    From wich I conclude that when a slave is not actively busy with a master is going to sleep mode.

    Bertus
     
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