Shell

The Bluetooth Shell is an application based on the Shell module. It offer a collection of commands made to easily interact with the Bluetooth stack.

For specific Bluetooth functionality see also the following shell documentation

Bluetooth Shell Setup and Usage

First you need to build and flash your board with the Bluetooth shell. For how to do that, see the Getting Started Guide. The Bluetooth shell itself is located in tests/bluetooth/shell/.

When it’s done, connect to the CLI using your favorite serial terminal application. You should see the following prompt:

uart:~$

For more details on general usage of the shell, see Shell.

The first step is enabling Bluetooth. To do so, use the bt init command. The following message is printed to confirm Bluetooth has been initialized.

uart:~$ bt init
Bluetooth initialized
Settings Loaded
[00:02:26.771,148] <inf> fs_nvs: nvs_mount: 8 Sectors of 4096 bytes
[00:02:26.771,148] <inf> fs_nvs: nvs_mount: alloc wra: 0, fe8
[00:02:26.771,179] <inf> fs_nvs: nvs_mount: data wra: 0, 0
[00:02:26.777,984] <inf> bt_hci_core: hci_vs_init: HW Platform: Nordic Semiconductor (0x0002)
[00:02:26.778,015] <inf> bt_hci_core: hci_vs_init: HW Variant: nRF52x (0x0002)
[00:02:26.778,045] <inf> bt_hci_core: hci_vs_init: Firmware: Standard Bluetooth controller (0x00) Version 3.2 Build 99
[00:02:26.778,656] <inf> bt_hci_core: bt_init: No ID address. App must call settings_load()
[00:02:26.794,738] <inf> bt_hci_core: bt_dev_show_info: Identity: EB:BF:36:26:42:09 (random)
[00:02:26.794,769] <inf> bt_hci_core: bt_dev_show_info: HCI: version 5.3 (0x0c) revision 0x0000, manufacturer 0x05f1
[00:02:26.794,799] <inf> bt_hci_core: bt_dev_show_info: LMP: version 5.3 (0x0c) subver 0xffff

Logging

You can configure the logging level per module at runtime. This depends on the maximum logging level that is compiled in. To configure, use the log command. Here are some examples:

  • List the available modules and their current logging level

uart:~$ log status

  • Disable logging for bt_hci_core

uart:~$ log disable bt_hci_core

  • Enable error logs for bt_att and bt_smp

uart:~$ log enable err bt_att bt_smp

  • Disable logging for all modules

uart:~$ log disable

  • Enable warning logs for all modules

uart:~$ log enable wrn