How to establish a BLE communication without connection

[mrabti]

Comment établir une communication BLE sans connexion et transférer des données entre deux STM32L41A, en configurant l'un comme diffuseur (producteur) et l'autre comme observateur (récepteur) ? Quelles sont les étapes et les configurations nécessaires pour assurer une transmission efficace des données du diffuseur à l'observateur ?

[Pavel A.]

BLE Extended advertising feature allows the payload size up to 1650 bytes. Looks good?

[mrabti]

Yes, that works for me! I want to establish a BLE communication without connection between two STM32L41A, configuring one as a broadcaster (producer) and the other as an observer (receiver). My goal is to ensure efficient data transmission using extended advertising. What are the necessary steps and configurations to achieve this?

[Pavel A.]

STM32L4 does not have internal BLE controller. You may be interested in wireless STM32 series with BLE. Otherwise, select some external BLE module. This will be your first step.

[mrabti]

https://www.st.com/en/evaluation-tools/b-l475e-iot01a.html