Send/receive data to multiple server using Master emulator

[John]

Hello,I changed nrf51822 firmware and NrfUart API .Now nrf51822 dongle and beacon can comunicate between them .Beacon transmit notification data and can receive a command from dongle(client). Can I send/receive data to/from multiple server at the same time?

[Hung Bui]

Hi John,

The master emulator firmware only support one peripheral at a time. If you want to handle several peripheral, I would suggest you to use the BLE driver instead.

The BLE driver firmware based on the S130 softdevice and the connectivity firmware. So that you can control the S130 from the PC via UART. You have full control of the S130 and can support up to 3 peripheral at a time.

[John]

Thanks Hung Bui for your answer.Now I found in S120 specification :" Central and Observer roles - up to 8 simultaneous connections".What menas this?can i receive and send data simultaneously up to 8 peripheral with my usb dongle?I need to send and receive data from minimum 4 server once.If it's not possible with dongle,It's possible with development kit?

[Hung Bui]

You can use the dongle with the BLE driver v0.4.1 where the support for S120 was not removed. You can have 8 peripheral connection with this version.

Note that the master emulator and the BLE driver are not the same. Master emulator support only one connection at a time.

In the future we will have more flexible option for the S130, it will not be limited to 3 peripheral connection and one central connection as it is now.

It doesn't mater which hardware you use, it's the softdevice which decides the feature.

[John]

So,now I understand that I can use BLE driver v0.4.1 which use S120 and I will can connect to up 8 beacon (peripheral) and I will can send and receive data to/from all at the same time?

[Hung Bui]

Yes, you are correct.