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bluetooth 5 vs 4.2

Hi
i'm going to do a school project with bluetooth mesh network so i was wondering if bluetooth 5 supports it and what are the benefits of using bluetooth 5 over bluetooth 4.2
The reason I'm asking is because I have to buy a board so I know if I need one with 5 or 4.2
hope you can help
You may make a documentation for your claim

Parents Reply
  • hello mikkelle,

    The Nordic Mesh SDK v1.0.1 is compliant with the Bluetooth Mesh Specification v1.0 and as such it supports the features inherent in BLE v4.2...

    The backstory is that when the Bluetooth SIG Mesh Working Group set out to implement the mesh standard they had a number of key design choices to make. One of those was which BLE version to base the mesh standard on. So the choice was:

    (1) Base it on Bluetooth LE v5.0 (and in doing so take advantage of increased range, increased speed, encoded PHY, utilize data channels for advertising etc.) BUT exclude the millions of Bluetooth v4.x radios currently in the marketplace (in phones etc.)

    or

    (2) Base it on Bluetooth LE v.4.x, thereby allowing all the (millions of) current Bluetooth v4.x radios in use to be able to take part in Bluetooth mesh networks. This option would also allow Bluetooth v5.0 radios to take part in mesh networks since Bluetooth LE v5.0 is backwards compatible with v4.2 (as indicated by MartinBL and David Erwin above)

    The Mesh Working Group chose to go with option (2), therefore any compliant (and fully interoperable) mesh stack from any vendor (whether it runs on a Bluetooth v5.0 (e.g. nrf52840) or Bluetooth v4.2 radio) will only utilize the inherent features of Bluetooth v4.2. 

    I hope that clarifies things for you.

    Regards,

Children
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