Getting Started with STM32WB55: BLE Advertising

In this guide, we shall see how to configure STM32WB55 to start advertising it’s BLE present and connect to our smartphone.

In this guide, we shall cover the following:

• Driver development.
• Results.

1. Driver Development:

We start off by creating new project with name of BLE_Broadcasting.

From the Pinout and Configuration:

From System Core select RCC and enable both External high speed and low speed clocks as following:

From HSEM (Hardware Semaphore), enable the HSEM as following:

From IPCC (Inter Processor Communication Controller), enabled it and the NVIC for both interrupt as following:

From timers, select RTC and enable the following:

• Activate clock source.
• Enable internal wakeup.
• Enable wakeup interrupt.

as following:

From connectivity, RF section, Activate RF1 as following:

From middleware and software pack, select STM32_WPAN and set the mode to be BLE and set the following:

• Disable Custom P2P.
• Enable Custom Template

As following:

From BLE Advertising, set GAP name as WB55_EExp (Can be a unique name).

Enable Complete local name as to be WB55_EExp as following:

From BLE GATT:

• Set number of services to 1.
• Set long name to LED_Control.
• Set short name to LED.

As following:

A new tab with name of LED_Control shall appear, select it.

Set the name as following:

• Characteristic long name as LEDWrite.
• Characteristic short name as LEDWrite.

As following:

From clock configuration, set the clocks as following:

Thats all for the configuration.

Save the project and this will generate the code.

2. Results:

Build the code and run it on your STM32WB55 Nucleo and open STM32 BLE ToolBox.

You should see the following:

Press on connect and you should see something like this:

Next, we shall control the LED from the smartphone.

Stay tuned.

Happy coding 😉