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How to send AT commands through UART on B-U585I-IOT02A?

Associate II


I have a question - I'm working on interfacing with the STM32WB5M module on the B-U585I-IOT02A. From what I understand, the STM32WB5M module is already flashed with an example for AT commands (in the STM32Cube_FW_WB_V1.13.3/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_MultiAppAt).

I was hoping to be able to create a STM32 project for the B-U585I-IOT02A board without flashing anything to the STM32WB5M module. For now, I just wanted to be able to send an AT command according to the AN5379 application notes and receive some sort of info back from the module. If there is a way to do this, or if I have some conceptual error, please let me know!

Thank you,

Jake U.

Andrew Neil
Evangelist III

AT Commands are just text strings.

The important thing to remember about AT Commands is that you need to pay attention to the responses to the commands you send - don't send the next command until the device has confirmed that it has completed the previous one.

ST Employee


You can find many information about AT commands on the following wiki page:

You can look BLE_AT_Client example available in STM32CubeU5 package:

Concerning the STM32WB5MMG module, BLE_AT_Server application can be used, this application is available in STM32CubeWB package.

Best Regards

Can you also please send some STM wiki page to work on throughput and power measurement on B-U585I-IOT02A??


You can look this wiki page which describes how to improve the data throughput while updating the STM32WB application or wireless stack.

Best Regards