Bluetooth: Central Multilink

Overview

A simple application demonstrating Bluetooth Low Energy Central role functionality by scanning for other Bluetooth LE devices and establishing connections to multiple peripherals with a strong enough signal.

This sample demonstrates the ability to connect to multiple peripheral devices simultaneously. The Zephyr version supports up to 62 connections, but the Atmosic platform configuration limits this to 2 connections for testing purposes.

For more details, refer to zephyr/samples/bluetooth/central_multilink/README.rst.

Requirements

Atmosic EVK <board | serial>

Building and Running

This sample is built from openair/samples/bluetooth/central_multilink. The source code can be found under zephyr/samples/bluetooth/central_multilink.

Build command:

west build -p always -b <BOARD> openair/samples/bluetooth/central_multilink --sysbuild -T samples.bluetooth.central_multilink.atm

Flash command:

west flash --no-rebuild --device <DEVICE_ID> --jlink --fast_load [--erase_all]

Configuration

The Atmosic platform configuration (atm.conf) limits the maximum number of connections to 2, which is more suitable for testing on Atmosic hardware:

CONFIG_BT_MAX_CONN=2

This overrides the default Zephyr configuration which allows up to 62 connections.