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Multiple Device Connection

ketan vadodariya
Expert 1120 points
Part Number: CC2640R2F

Hi,

I am using CC2640R2F device for the Bluetooth Application. Currently we are seeking Information about the connection and uses. We have application where multiple connection is required with one device. Does CC2640R2F can connected with multiple CC2640R2F Device? If Yes what would be appropriate application for this ? 

  • 0
    TI__Mastermind 42250 points

    Hi,

    Thank you for reaching out to us. The CC2640R2F device is able to implement peripheral, central and multirole BLE applications. This means that the CC2640R2F can be connected to and can connect to other devices. You are also able to connect to multiple devices at the same time. To learn more about the CC2640R2 and how to use our BLEStack, then I would recommend taking a look at our SimpleLink Academy training modules. These self-guided modules teach you everything you need to know about the CC2640R2 and how to develop software in the SDK. For BLE, I would recommend starting with the Bluetooth Low Energy Fundamentals SLA lab. I believe the Connections lab may be very useful as well given your usecase.

    Best Regards,

    Jan

  • 0 in reply to Jan
    Expert 1120 points

    Hi Jan,

    Thank you for your reply. well currently we have a application where one peripheral master device sent data to another central device. so that means with peripheral device and one central device always be connected. now we are seeking such way that one peripheral device can transfer the data to the multiple central device using GATT profile, that means peripheral should accept new connection without disconnect connected device and transfer the data.

    well please suggest peripheral devices can connected multiple central device ? or central device can connected the multiple device.

  • 0 in reply to ketan vadodariya
    TI__Mastermind 42250 points

    Hi,

    Yes, a peripheral can have multiple active connections with multiple central devices and a central can be connected to multiple peripherals. All connected central devices should be able to see the GATT table and interact with it.

    Best Regards,

    Jan

  • 0 in reply to Jan
    Expert 1120 points

    Hi Jan

    Thank you for clarifying the connection between peripheral and central.

    Total how many devices can we connected in multiple connection mode.?

  • 0 in reply to ketan vadodariya
    Guru 86755 points

    Hi,

    You might want to consider TI BLE MCU with bigger FLASH and RAM as central device. For CC2640R2F simple central or multi role you can connect up to 3 peripheral devices. If you remove some codes maybe you can connect up to 4.

    -kel

  • 0 in reply to Markel Robregado
    Expert 1120 points

    Hi Markel

    With my existing device, this is the memory cost for the simple application, if now I increase the connection count, it will fit to existing device.

  • 0 in reply to ketan vadodariya
    TI__Mastermind 42250 points

    Hi,

    The amount of devices that you can connect to will depend on how much flash and RAM is available in your application. The more complex your application the less connections you will be able to have during runtime. I would recommend referencing the Optimizations section of the User's Guides for some tips on how to optimize your flash and RAM usage in order to maximize the amount of connections you can have.

    However, as Kel stated, if your application is very RAM heavy, then you may want to consider a device with a larger RAM and FLASH such as the CC26x2 family of devices.

    Best Regards,

    Jan

  • 0 in reply to Jan
    Expert 1120 points

    Hi Jan,

    Thank you for sharing knowledge, I think I got the answerer now. I am marking this thread as resolved, I don't have any questions right now. I will reopen it if anything is required to be ask. 

    Thank you!