nRF52840, more than 20+ connections via additional RAM

[berkay.varis]

Hello there, I know that softdevice supports up to 20 connections at the same time, but we need more actually.

If i implement a SPI ram to device, is there any change to use in softdevice so that reach more than 20 connections at the same time ?

[haakonsh]

Not with SoftDevice, but maybe with the Zephyr BT Controller. 

I've asked some experts and I'm waiting for a reply. 

[haakonsh]

Zephyr has support for 64 concurrent connections in software, but we only test for 20 (every night). That means that you'll need to test the stability for yourself and use the NCS SDK.

It also depends on your connection parameters as you'll get fairly low throughput per connection.

How many devices do you need, or what is your application? 

[berkay.varis]

Thanks for the answers. The application is a ble gateway for an indoor positioning system, we need approximately 100, but i'll check Zephyr out.

Sincelery.