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How many devices can connect to the Bluetooth Low Energy (Bluetooth Smart) to RS-485 Gateway at the same time?

Peter Sun
Prodigy 80 points
Other Parts Discussed in Thread: CC2540T, CC2564

Hi

I would like to use the  CC2540T as a standalone  RS-485 gateway to connect 7 slave device at the sample time?

What kind of the TI solution can help me to do that?

BR

Thanks

  • 0
    TI__Guru 56590 points
    Hello Peter,
    The example code provided on the ti design Bluetooth Low Energy (Bluetooth Smart) to RS-485 Gateway is based on the simpleBLEPeripheral (Slave role) which only support a single link-layer connection. So you will have to port the GATT server to a central/master role. The CC254x only allows 3 simultaneous connections as a central. Depending on your application, it might be possible to quickly connect, receive data, and disconnect from the peripherals while never maintaining more than 3 simultaneous connections.

    The CC2564 can handle up to 7 simultaneous connections.