NRF52832 - Max number of connections to mobile device?

[kian79]

Hi all,

I have a NRF52DK acting as a peripheral and running the ble_app_uart example. I want to have bi-directional communication with a mobile device that is connected. My question is, how many more devices running the same ble_app_uart  program can be connected to the mobile device? I basically want to have 1 phone communicating with multiple (same) devices at the same time. Will there be any problems with packet collision?

Thanks in advance.

[bjorn-spockeli]

Hi Kian, 

the number of concurrent connections supported by your mobile device will be determined by the BLE chipset and the Bluetooth Stack of your mobiled device. In terms of packet collisions I would not be worried as a Bluetooth Low Energy Central schedules its connections, i.e. it will communicate with one peripheral at the time sequentially, see Connection timing as a Central. 

The nRF52832 and the S132 v6.0.0 SoftDevice supports up-to 20 concurrent connections.

Best regards

Bjørn