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CC2540 USB dongle communicating with Galaxy S4

Osman Esen
Intellectual 740 points
Other Parts Discussed in Thread: CC2540

Hello everyone. I have downloaded and installed an app from Samsung BLE SDK and now, i'm trying to communicate with the CC2540 USB dongle. I can't find the device. I thinks both the phone and the dongle act as MASTERS. 

Is this the only problem, or is there anything else ?

If yes. How do i switch the mode to "SLAVE" for the dongle ?

  • 0
    Guru 22270 points

    Hello Osman,

    If you have the KeyFob, then you should download the KeyFob firmware into it and test it.  You can also download the same firmware into the dongle, you just won't have the button and alarm fuctions.  To get those you would have to change the port configurations.

    I would think that due to the popularity of the CC2540MINI-DK the Samsung example would contain support for the KeyFob.

    You can visit the www.ti.com/BLE-wiki and download the Master/Slave role switching code if you want that functionality.

    Thanks,

  • 0 in reply to Greenja
    Intellectual 740 points

    Thanks for the reply greenja

    The communication works for me now. I just made the dongle to be en slave mode and discoverable. When i scan for the devices in a Samsung sample app, it can find my dongle.