30 simultaneous BLE peripherals connections. Known solutions? nRF52840 Dongle?

Hi,


we are developing a solution where the number of peripheral BLE devices is increasing and we need to manage up to 30 realiable connections. We have been working with a nRF52840 USB Dongle having up to 8 connections with a good performance.

In our app, we are interacting with the dongle using a python library called Blatann, which is implemented also over the NordicSemiconductor github repo pc-ble-driver-py. We had some trouble with the memory the dongle can provide, since it is highly related to BLE parameters such as, MTU packet size, number of connections, etc. We tried to find some relevant information about this topic, but we only found that BLE is designed to support a high number of simultaneous connections, but we do need more details.

Could you provide some more info regarding these simultaneous connections or recommend any Nordic solution from the company or any third-party that uses your chips? It does not need to be the nRF52840, we are open on this side.

ADDITIONAL INFO

We flashed the USB Dongle with the FW recommended by Blatann (usb_with_s132).

According to this followin table, the number shows the softdevice and the quantity of multiple simultaneous connections available.

  

Thanks in advance!

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