.. _x-nucleo-wb05kn1:

X-NUCLEO-WB05KN1: BLE expansion board
#####################################

Overview
********
The X-NUCLEO-WB05KN1 is a Bluetooth Low Energy evaluation board which allows the
expansion of the STM32 Nucleo boards.
The RF module is FCC (FCC ID: YCP-MB203202) and IC certified (IC: 8976A-MB203202).

The X-NUCLEO-WB05KN1 is compatible out of the box with the Arduino UNO R3 connector.
The board interfaces with the host microcontroller via UART (default) or SPI peripheral.

.. image:: img/x-nucleo-wb05kn1.webp
     :align: center
     :alt: X-NUCLEO-WB05KN1

More information about the board can be found at the
`X-NUCLEO-WB05KN1 website`_.

Configurations
**************

X-NUCLEO-WB05KN1 can be utilized as a Bluetooth Low-Energy controller shield
with a UART or SPI host controller interface (HCI-UART/HCI-SPI).

The UART default settings are:

* Baudrate: 921600 bps
* 8 bits, no parity, 1 stop bit

+----------+-----------------------+
| UART Pin | Arduino Connector Pin |
+==========+=======================+
| RX       | D0                    |
+----------+-----------------------+
| TX       | D1                    |
+----------+-----------------------+

.. note::
   Please, bear in mind in order to use SPI interface you need to change the shield firmware
   to ``DTM_SPI_WITH_UPDATER_CONTROLLER`` according to the SDK provided by ST at `X-CUBE-WB05N`_.

IRQ and reset pins are also necessary in addition to SPI pins.

+----------------+-----------------------+
| SPI Config Pin | Arduino Connector Pin |
+================+=======================+
| SCK            | D13                   |
+----------------+-----------------------+
| MISO           | D12                   |
+----------------+-----------------------+
| MOSI           | D11                   |
+----------------+-----------------------+
| CS             | D10                   |
+----------------+-----------------------+
| IRQ            | A0                    |
+----------------+-----------------------+
| RESET          | D7                    |
+----------------+-----------------------+

More information about X-NUCLEO-WB05KN1 can be found here:
       - `X-NUCLEO-WB05KN1 datasheet`_

Programming
***********

Activate the presence of the shield for the project build by adding the
``--shield x_nucleo_wb05kn1_uart`` or ``--shield x_nucleo_wb05kn1_spi`` when you invoke
``west build`` based on UART or SPI interface:

 .. zephyr-app-commands::
    :app: your_app
    :board: your_board_name
    :shield: x_nucleo_wb05kn1_uart
    :goals: build

or

 .. zephyr-app-commands::
    :app: your_app
    :board: your_board_name
    :shield: x_nucleo_wb05kn1_spi
    :goals: build

References
**********

.. target-notes::

.. _X-NUCLEO-WB05KN1 website:
   https://www.st.com/en/evaluation-tools/x-nucleo-wb05kn1.html

.. _X-CUBE-WB05N:
   https://www.st.com/en/embedded-software/x-cube-wb05n.html

.. _X-NUCLEO-WB05KN1 datasheet:
   https://www.st.com/resource/en/datasheet/stm32wb05kn.pdf