 Hello, and welcome to the STM32WL training session. This session is organized to provide you with the most important information to ensure that you can develop your application as easily as possible. You will find a technical description of all of the STM32WB modules including peripherals and development tools organized into specific sections system, memory, security, analog, peripherals, watchdog, and timers, and ecosystem. You can browse each section separately and learn about each module in the order of your choice and at your convenience. This session also allows you to search directly for a keyword and you will have direct access to the sections covering this information. Now let's take a closer look at the new STM32WL series of wireless microcontrollers. The STM32WL microcontroller is a new series of wireless MCUs with a built-in sub-gigahertz radio. It is an evolution of the well-known and market-leading STM32L4 ultra-low power series of MCUs extended with new peripherals to support the widest range of use cases and enriched with additional low power functions to improve the overall power efficiency. The STM32WL5 product line comes with a dual-core architecture made of an ARM Cortex-M4 core, a Cortex-M0 plus, and advanced security features. As you will see in subsequent training modules, the STM32WL series is also available through the STM32WLE product line, which is a single-core product based on ARM Cortex-M4 only. The advantage of such architecture is its full openness and multi-modulation capabilities, enabling users to flexibly implement any compatible sub-gigahertz protocol. Indeed, the four available modulations, namely LORA, GFSK, GMSK, and BPSK, make the STM32WL series suitable for LORA-WAN, SIGFOX, or WMBUS implementations, for instance. As the system is fully open, such modulations can also be used for any custom implementation of proprietary protocols or for many other standardized protocols. Users will always be free to implement whatever protocol they need on the STM32WL series. Thanks to its rich set of features, the STM32WL can support a wide range of use cases from utilities to smart homes, from logistics to industrial monitoring, or any other IoT applications. This slide summarizes the eight key points that make a difference for the selection of the STM32WL microcontroller in a new project. With multi-modulation, total openness, advanced security features, and a large ecosystem, STM32WL is the de facto choice for long-range sub-gigahertz IoT applications. STM32WL is actually the first and sole LORA-enabled system on chip in the world, which finally leads to massive cost savings for device makers. The STM32WL series benefits from ST's long experience in developing STM32 microcontrollers, as well as a rich ecosystem based on its hardware and software tools already used throughout the entire STM32MCU family. Now, let's get started with the training. Do not hesitate to follow the events and news about this product on our website at www.st.com slash STM32WL. Enjoy!