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. However, the out-of-the-box firmware is not compatible with Zephyr; therefore, a controller-only image should be flashed on the board using CN8 pin headers. For more information about how to change the firmware, please refer to UM3406 [1] section 3.3.

Note

The X-CUBE-WB05N [2] package provided by ST contains firmware compatible with Zephyr in the Utilities/BLE_Transparent_Mode_STM32WB05_controller_only directory (SPI or UART subdirectories depending on which interface you want to use).

X-NUCLEO-WB05KN1

More information about the board can be found at the X-NUCLEO-WB05KN1 website [3].

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

The SPI default settings are:

  • Mode: Full-duplex slave

  • Frame format: Motorola

  • Data size: 8 bits, MSB first

  • Clock Polarity: High (CPOL=1)

  • Clock Phase: 2 Edge (CPHA=1)

  • CS type: Software-controlled

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:

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:

west build -b your_board_name --shield x_nucleo_wb05kn1_uart your_app

Or

west build -b your_board_name --shield x_nucleo_wb05kn1_spi your_app

References