STM32 MCUs Wireless

NUCLEO-WBA25CE1 "Bootloader limitation"

Hi, As per UM3610 « section 7.7 », a "Bootloader limitation" has been found in NUCLEO-WBA25CE1. Please refer to "Workaround" section if you are facing this limitation.

Matter software expansion for STM32Cube

Dear all, The X-CUBE-MATTER Expansion Package is now available on our official website following this link MATTER - Matter software expansion for STM32Cube - STMicroelectronics It is a reference implementation for the demonstration of Matter on ST...

Please go and visit our wiki pages to support your projects on our wireless product families.

Please go and visit our wiki pages where you can find a lot of information on our wireless product families (WB, WBA, WL) and the supported protocols: BLE, Zigbee, Thread, Matter, Lora, ... To begin your technical journey, please start from this top ...

LoRa Wio e5 stopped trying to join after a while

Initially flashed the device with a custom code from and it worked fine, the flashed device ran for several days in line power even after multiple power cuts. But one day it stopped trying to join at all. I have used an external RTC to generate alarm...

Resolved! Can't build TMAP_Central example: No rule to make target stm32wbaxx_ResetHandler_GCC.s

Hello, I have a STM32WBA55G-DK1 board, and i'm trying to build the example code for the Unicast server (BLE_Audio_TMAP_Central example project). I'm importing it using the GUI (new project, example, then i select the example). I haven't modified any...

Code Gets Stuck in RTC Initialization . Works Occasionally, Fails Most of the Time

Hi all,I'm currently working on a project involving bidirectional communication (TX and RX), and I'm encountering an issue with the RTC initialization.The problem is that my code often gets stuck in the MX_RTC_Init() function. Interestingly, it works...

Resolved! Below -15℃, UART Cant Receive any data (STM32WLE5CCU6)

When temperature below -15℃ , STM32WLE5CCU6 UART can't receive any data from uart, But it can send data out from UART.,and The LoRa Unit worked well,It seems the TXCO is working. What's the problem? How can solve this problem?

STM32WLE5CCU7 - Can't make HSE work on custom board

hey fellas, i'll try to do this as quickly as possible to not waste your time, but i'm at my wit's end with this thing.i'm requesting for forgiveness since i'm sort of a noob, but i DID read every relevant documentation before posting here.MCU: STM32...

STM32wle5 Low power

we are working stm32wle5ccu6. In than I am trying to put device in power saving mode but its not working properly.I was getting 15 mA consumption before now after reducing clock freq, I am getting 5.51mA.. we want to achieve consumption in microamp...

Resolved! Running any zigbee server cluster on STM32WB55

Hello! I am continuing my journey to Zigbee on WB55 and facing new strange behaviorIf i select Temperature measurement server or Pressure measurement server or whatever server, the code hangs on zigbee_app_info.temperature_meas_server_1 = ZbZclTempMe...

Guidance on Designing STM32WB55CGU7 Microcontroller for 1.8V Operation

Hello,I am planning to design a system using the STM32WB55CGU7 microcontroller with a supply voltage of 1.8V. As per the datasheet, this microcontroller operates within a voltage range of 1.7V to 3.6V. I would like to confirm if designing for 1.8V is...

Matter Device Commissioning – STM32WB5MM-DK & NUCLEO-WB55RG Unable to Join Thread Network

I am developing a Matter device (Thread) using the STM32WB5MM-DK and NUCLEO-WB55RG.When commissioning the device using the Google Home app on a Google Nest Hub:The first STM32WB5MM-DK was successfully commissioned.However, the second STM32WB5MM-DK fa...

STM32WB55: BLE project with with sequencer does not work with FreeRTOS

Hello,I have a project where I work with BLE from the STM32WB55 series. I did this project using both FreeRTOS and Seqeuncer. The code content is exactly the same. However, after I put the Sequencer firmware on the processor, when I put the FreeRTOS ...

STM32 MCUs Wireless

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