 Hello and welcome to this introduction to the STM32WB series training session. It describes the feature sets of the various lines available in the STM32WB microcontroller series. The block diagram for STMWB devices is provided here for reference. The STM32WB proposes a variety of communication assets, a practical Crystallis USB 2.0 FS interface, audio supports, an LCD driver, up to 72 GPIOs, an integrated SMPS for power consumption optimization, and multiple low power modes to maximize battery life. The independent radio frequency module with an integrated balen also offers high-performance wireless connectivity, running BLE open-thread protocols concurrently. On top of wireless and ultra-low power aspects, a particular focus was placed on embedding security hardware functions such as a 256-bit AES, PC Rop, JTAG Fuse, PKA, Elliptic Curve Encryption Engine, and Root Secure Services or RSS. The RSS allows authenticating OTA communications regardless of the radio stack or application. This slide lists some specific features of the STMWB 55 microcontroller, an integrated autonomous operating radio subsystem, a dual-core architecture where only the application processor boots after reset. The connectivity processor only boots once enabled by the application. A single blank flash memory shared by the two CPUs and accessed via a separate AHV bus in the common run domain. A Cortex M0 Plus dedicated memory, flash, SRAM 2, and peripheral security. A single frequency HSE at 32 MHz and two LSI's, the standard STM32 low-power LSI1 and a low-drift LSI2 to be used when the wireless connectivity is active. These are additional specific features versus other STM32SS microcontrollers. The SRAM 2 is splitting two parts. SRAM 2S is a backup part while SRAM 2B is a non-backup part. A debug cross-trigger unit allows the use of a trigger input output on an IO port. An integrated switching mode power supply or SMPS provides an intermediate voltage for the core and radio LDOs. The STM32WB series can be encapsulated in a wide range of packages. Note that the UQFN package has seven dedicated radio pins and four dedicated SMPS pins.