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zephyr/samples/bluetooth/central_iso
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Vinayak Kariappa Chettimada 2c6306d099 Bluetooth: Controller: BT_CTLR_ISO_TX_BUFFER_SIZE from BT_ISO_TX_MTU 
Derive BT_CTLR_ISO_TX_BUFFER_SIZE from BT_ISO_TX_MTU to have
optimal Controller memory allocations.
BT_CTLR_ISO_TX_BUFFER_SIZE can be set lower than
BT_ISO_TX_MTU in which case upper layer can send fragmented
SDU to the Controller.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
2024-05-10 15:02:10 +02:00
..
src samples: Bluetooth: Only connect to devices with rssi below -50 2024-02-26 14:34:07 +01:00
CMakeLists.txt cmake: increase minimal required version to 3.20.0 2021-08-20 09:47:34 +02:00
overlay-bt_ll_sw_split.conf Bluetooth: Controller: BT_CTLR_ISO_TX_BUFFER_SIZE from BT_ISO_TX_MTU 2024-05-10 15:02:10 +02:00
prj.conf samples: bluetooth: central_iso: Remove the CONFIG_BT_SMP=y 2024-02-26 14:34:07 +01:00
README.rst samples: bluetooth: iso: Extend sample documentation 2024-02-26 14:34:07 +01:00
sample.yaml Bluetooth: Controller: BT_CTLR_ISO_TX_BUFFER_SIZE from BT_ISO_TX_MTU 2024-05-10 15:02:10 +02:00

README.rst 

.. _bluetooth_central_iso:

Bluetooth: Central ISO
######################

Overview
********

This sample demonstrates how to use an isochronous channel as a central.
The sample scans for a peripheral, establishes a connection, and sets up a connected isochronous channel to it.
Once the isochronous channel is connected, isochronous data is transferred to the peer device every 10 milliseconds.
It is recommended to run this sample together with the :ref:`Bluetooth: Peripheral ISO <peripheral_iso>` sample.

To run the sample with an encrypted isochronous channel, enable :kconfig:option:`CONFIG_BT_SMP`.

Requirements
************

* BlueZ running on the host, or
* A board with Bluetooth Low Energy 5.2 support
* A Bluetooth Controller and board that supports setting
  :kconfig:option:`CONFIG_BT_CTLR_CENTRAL_ISO`.

Building and Running
********************
This sample can be found under :zephyr_file:`samples/bluetooth/central_iso` in
the Zephyr tree.

1. Start the application.
   In the terminal window, check that it is scanning for other devices.

      Bluetooth initialized
      Scanning successfully started
      Device found: D3:3A:5D:F5:73:33 (random) (RSSI -78)
      Device found: 70:7B:F4:2B:76:AD (random) (RSSI -68)
      Device found: 65:CF:20:0D:CB:9D (random) (RSSI -82)

2. Observe that the device connects.

      Connected: 65:CF:20:0D:CB:9D (random)

3. Observe that the ISO channel is connected

      ISO Channel 0x200048f8 connected

See :ref:`bluetooth samples section <bluetooth-samples>` for more details.