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Will a CC2540 USB Dongle make an Android tablet BLE-enabled?

Conrad Nobert
Prodigy 40 points
Other Parts Discussed in Thread: CC2540

Hi,

I have recently been recruited to work with a research team that is developing with the CC2540 Development Kit.

They want to communicate with an Android tablet.

My question is, will a CC2540 USB Dongle make an Android tablet BLE-enabled?

Since no Android tablets currently ship Bluetooth 4.0, will the dongle enable me to communicate with the CC2540 equipment from an Android tablet?

Thanks!

  • 0
    TI__Genius 12545 points

    If you can connect the USB dongle to your tablet and run the SW off the tablet, you should be able to use the BLE capability of the CC2540 USB Dongle.

  • 0 in reply to Chatto
    TI__Expert 6840 points

    Hello,

    We did a demo like this about a year ago on OMAP4 tablet.  There are a few issues.

    1. Host Mode

    The android port needs to operate in host mode (like a computer) in order for us to get this to happen we had to use busy box and specifically select host mode when compiling the kernel.  Perhaps there is a high level function for this and you can avoid this, but this is what we had to do. Also, be sure to get the correct connector - as there is a gnd line to indicate host mode.

    2. Stack

    We had to use HCI commands, and program all the support, as there was no stack to drive the system  Android tablets have a BlueZ stack (at least some do), but I'm not familiar with the level of BLE support by version, and this may also be mfg specific.

    I would expect tablets to start supporting BLE soon.

    BR

    -Greg

  • 0 in reply to GregS
    Prodigy 40 points

    Thank you so much!