Non blinky-flashy, Sorry - Bluetooth hardware device?

Discussion in 'The Family Room' started by kane, Jun 21, 2013.

  1. kane

    kane Dedicated Elf

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    Not related to all things blinky-flashy, but thought I'd check the brains trust here to see if anyone has any ideas.

    I am wondering on the availability of a "dumb" bluetooth device, which doesn't need to do anything clever, apart from being visible.

    Need it to be low-cost, and low power usage. Ideally, battery powered that would last a few years..

    To elaborate on the requirements - we are developing an app that could benefit from the ability to detect whether the app user is within range of a location. Obviously GPS could be used, but these will be used in central locations (eg CBD and/or basements) where GPS is sometimes not reliable. By having bluetooth "hotspots" in various locations, the app would listen for bluetooth devices, and if it sees a known MAC address, it acts accordingly.

    A bit of a long shot, but thought I'd check if anyone has any ideas! Looking on alibaba, there's a heap of bluetooth PCBs etc, but wouldn't know where to start!

    Cheers

    Kane
     
  2. David_AVD

    David_AVD Good news, everyone!

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    I bought a couple of modules similar to this eBay one. They had a default ID from memory. I don't think they have an advertised MAC address though?
     
  3. OP
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    kane

    kane Dedicated Elf

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    So does that require mating with something else, or if you simply power that up, does it become a valid bluetooth device?

    I thought that every bluetooth device is allocated a MAC address, but could be wrong?
     
  4. David_AVD

    David_AVD Good news, everyone!

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    It's been a few months since I fiddled around with those modules, but I *think* I just powered it up and it worked without anything else connected. I did hook up a serial terminal to change the broadcast name (or whatever they call it) but have not tried it in a data transmission scenario yet.
     
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    kane

    kane Dedicated Elf

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    Cool, might get some to play with!
     
  6. mick8248

    mick8248 Full Time Elf

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    Don't think they have a MAC address but they do have a unique 48 bit address but not sure how you go about reading it.
     
  7. David_AVD

    David_AVD Good news, everyone!

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    A quick Google search shows that Bluetooth does indeed use a MAC address.

    Code:
    The following technologies use the MAC-48 identifier format:
     Ethernet
     802.11 wireless networks
     Bluetooth
     ...
    
     

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