About the number of connections for 'BLE MESH' in 52840

Question

Hello. 
 I want to know maximum number of 'BLE MESH' connect, Could you teach maximum number in 52840? also Could you teach number of evaluation in 52840? 
 Thank you.

Amanda Hsieh · Accepted Answer

Hi, 
 From our expert: 
 You can do this with Bluetooth mesh, yes. One reason for doing it with Bluetooth mesh is if the devices are spread out so that you do not all have direct radio access to what you call "host". However, you may want to do something smart, if what you call "clients" are not mains powered. Either by adding mains-powered relay nodes or by all nodes waking up at the same time of day, in order for the network to be functional while the nodes send the data. 255 bytes per day should be well within what the Bluetooth mesh network can handle, although with 100 nodes I guess it may take some time to get it all transferred. 
 We do have numbers for nRF5 SDK, with one gateway and 32 nodes. The throughput on the gateway, for SAR acknowledged messages, is then 1.9 kbps, or around 240 bytes per second, which means around one second per device. With 100 devices, if they all send at the same time, the throughput would probably go down, giving a couple or maybe more seconds per device on average. Numbers for nRF Connect SDK should be similar, this is mostly limited by the technology (Bluetooth mesh) and the configuration of the network, and not limited by the specific implementation. 
 -Amanda

About the number of connections for 'BLE MESH' in 52840

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