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Can You Tell Me A Whole Difference Between Bluetooth 1.2 & 2.0 Whit Details?

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    Bluetooth
    1.2


    This version is backwards
    compatible with 1.1 and the major enhancements include


    • Adaptive Frequency-hopping spread spectrum
           (AFH)
      , which improves resistance to radio
           frequency interference by avoiding the use of crowded frequencies in the
           hopping sequence
    • Higher
           transmission speeds in practice
    • extended Synchronous Connections (eSCO), which improves voice quality of audio links by
           allowing retransmissions of corrupted packets.
    • Host
           Controller Interface (HCI) support for 3-wire UART
    • HCI
           access to timing information for Bluetooth applications



    Bluetooth 2.0

    This version is backwards compatible with 1.x. The
    main enhancement is the introduction of Enhanced
    Data Rate (EDR)
    of 3.0 Mbps. This has the following effects (Bluetooth
    SIG, 2004):


    • 3
           times faster transmission speed (up to 10 times in certain cases).
    • 100
           meter range
    • Lower
           power consumption through a reduced duty cycle.
    • Simplification
           of multi-link scenarios due to more available bandwidth.
    • Further
           improved BER (bit error rate) performance.
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