I believe that Bluetooth units are limited to 1 central (master/server/upstream) and 7 peripheral (slave/client/downstream) connections. Mesh networks can be made up of up to 255 units.
Advertising is different, and not limited, but it is not classified as a 'connection'. My understanding is that advertisements are simply broadcast, so there is no bidirectional communication.
I thought I had seen multi master stacks. For peripherals I know I’ve seen 20 concurrent this n the Nordic S132, definitely not 8 as any BLE spec limitation.
Yes. That’s what I said, beacons are advertising packeting with the connectable flag cleared.
You misunderstood, there is no bidirectional in my post. Just two transmitters and two receivers.
Advertising is different, and not limited, but it is not classified as a 'connection'. My understanding is that advertisements are simply broadcast, so there is no bidirectional communication.