I am trying to create Client-Server connection network over android devices via blue-tooth(as the connection platform).One device acting as Server and other 4 or five devices as Clients.I have tried many examples from git-hub repository but there is no multi-connectivity implementation.Here is the link I tried for multi connection via blue-tooth https://github.com/arissa34/Android-Multi-Bluetooth-Library
x protocol SPEC, when the iPhone/Android phone play as role of BLE central mode, the limitation to have active connection at the same time is up to 8 devices.
Client devices typically support a limited number of pairings, anywhere between 1 and 5, and only one single connection. They act like a wireless client, you can save many different networks but only connect to one at a time.
Most Android devices can connect to two or five Bluetooth devices simultaneously, while others support up to seven devices. The number of supported connections depends on the Bluetooth module your device is equipped with. Obviously, the newer the hardware, the more Bluetooth devices you can connect to.
Bluetooth headphones and speakers can't connect with multiple devices at a time. Just think of how making multiple phone calls to multiple devices at once is not possible. If your headphones are already connected to one mobile device, they cannot be simultaneously connected with another mobile device.
First of all, you have to notice this library is for socket communication using RFCOMM protocol which is not Low Bluetooth https://en.wikipedia.org/wiki/List_of_Bluetooth_protocols
If you want help, I need more informations, as your android version, a piece of your code and your logs as well.
Moreover, you can see this library in work on this game https://play.google.com/store/apps/details?id=com.drgames.domino Using one server and 3 clients in bluetooth.
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