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Harraz Naufal
Prodigy 20 points
Other Parts Discussed in Thread: CC2640R2F, CC2642R, CC2652R

Hi,

I am developing a smartphone dock with bluetooth. The use-case is that when a student places his smartphone on the dock, automatically a pairing request pops up > user accepts > and then another prompt pops up for user to open an app. This app is a web-based learning app.

Say that I have 10 students with 10 individual tables with smartphone docks on them and each student needs to place his phone to the dock on his table. The critical feature is: The pairing request must come from the dock that is fixed on the student's table, meaning the dock on next table should not send a pairing request to the another student's phone. The distance between one dock to the next is about 50cm.

Which bluetooth IC model do you recommend for my design? I need something that is small, low energy and last for a long time (about 6-months to a year). Looking forward to your advice..

  • 0
    TI__Genius 14845 points

    Hi Harraz, 

    Assigning an expert to comment. 

    Thanks, 
    Elin

  • 0
    TI__Guru* 81311 points

    Hi Harraz,

    Is there a wired connection between the dock and the smartphone?

    I think at 50 cm you will have some cases where the dock sends the message to the wrong smart-phone. To avoid this you can use a low transmit power. The only way to be sure would be to add some kind of ID signifier on the dock, e.g. a sticker with an ID. This way the smartphone knows which dock message to accept.

    If your application is relatively small I would recommend the CC2640R2F device. 

    If you are planning to add multiple drivers, transfer a big amount of data or build a network between the docks I would recommend CC2642R. This is a slightly larger BLE device with more flash available which allows you to make more complex applications. 

  • 0 in reply to Marie H
    Prodigy 20 points

    Hi Marie,

    Thanks for the response. Apologies for my late reply.

    To answer the first question, it's a no - there isn't any wired connection between the dock and phone. 

    For long term I'd like to have some networking going on. I plan to have a dashboard that monitors the status of the docks (active/ inactive/ in use) so that i'll know if it needs replacing. So for this case you'd recommend the CC2642R ? Also am I able to integrate this bluetooth module to development boards such as Arduino or Raspberry Pi for testing? 

    Recap:

    Use-case: When a student places his smartphone on the dock, automatically a pairing request pops up > user accepts > and then another prompt pops up for user to open an app. This app is a web-based learning app.

  • 0 in reply to Harraz Naufal
    TI__Guru* 81311 points

    Hi Harraz,

    If you use the CC2642R you can make BLE connections not only between the dock and the smart phone, but also between docs.

    If you use CC2652R, our multi-standard device, you can set up e.g. a zigbee network between the docs and run it simultaneously as the BLE connections.

    We don't currently have a module for the CC2642R device, but you can use a CC26x2 LaunchPad to test.