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Reading accelerometer data on CC2541 Keyfob through Labview

Yiran Li
Prodigy 30 points
Other Parts Discussed in Thread: CC2541

Hi,

I am trying to designing a board with CC2541 to achieve wireless communication between my circuit and laptop. The main job of the CC2541 in my circuit is transmitting the output of my circuit from board to laptop. And I can read out the output through LabVIEW.

I got an CC2541 mini development kit to play with. The system of my laptop is Windows 8.

Base on my research, what I understand and I can do is: I insert the USB dongle, and my laptop will assign an virtual port number to it, then I can read data by using NI VISA read. 

For now, I am trying to make the LabVIEW recognizing the Keyfob without the USB dongle connect to my laptop. My laptop can recognize the Keyfob as "Simple BLE Peripheral". But the LabVIEW was not able to find it. Neither using "Bluetooth discovery. VI" or NI VISA.

So I am just wondering is there anyone did this before to read  the data from the Keyfob or the CC2541 on board through Labview?

Thank you very much!

Lola

  • 0
    TI__Genius 17975 points

    The CC2540USB dongle running the HostTestRelease project is probably not compatible with LabView. LabView is probably expecting a classic BT controller dongle to be plugged in, and I doubt that they have integrated drivers that support our stack network processor commands (I have not heard of them doing this).

  • 0 in reply to Willis1
    Prodigy 30 points

    Hi Wills,

    Thank you very much for your reply.

    I am sorry I don't have too much knowledge about what is classic BT controller. Eventually, I want to achieve the communication between a bluetooth chip on circuit and a laptop without any USB plug in. 

    Basically, I want to achieve data transmission from my circuit board to laptop or computer through bluetooth. I have a CC2541 on my circuit and trying to transmit the output of my circuit to laptop through CC2541. I want to use one of the I/O port of CC2541 as an input which is connected to the output of my circuit. And I want to use UART mode to transmit my output to laptop. And I want to read out data by LabVIEW. 

    My question is:

    1 which code I need to look at and modify to achieve this transmission? Is this can be done by modifying "SimpleBLEPeripheral" code?

    2. Can I read the output of the circuit by LabVIEW on my laptop? If the LabVIEW couldn't do this, what software I need to use in order to read the output continuously?

     

    Thank you very much,

    Lola

  • 0 in reply to Willis1
    Intellectual 430 points

    but if you need the cc2540USB dongle running the HostTestRelease to make the bluetooth connection. What can you do to read/write through LabView on the board?

    Or there is another way you can use the dongle or something?

    Thanks,

  • 0 in reply to gabriel rodriguez
    TI__Mastermind 33460 points
    Lola,

    I cannot help much with the labview side of things as this isn't a supported TI product, but I can help you to understand the CC254x side of the solution.

    The CC2541 will appear as a USB CDC device and will enumerate in windows as a COM port. You should be able to write and read to the host test application using HCI commands. The supported interface is described in the TI HCI Vendor Specific HCI guide. In addition to vendor specific commands the device will also understand Bluetooth specified HCI commands which are detailed in the BLE spec Vol 2 Part E