20190203 LOG For STM32 microcontrollers and microprocessors, ST proposes a large range of embedded software components including: Audio (MP3, WMA, voice services, and more) Connectivity (USB, TCP/IP, Bluetooth, Zigbee RF4CE, and more) Graphical interfaces Cryptography (Free STM32 Library with public key, symmetric and hash algorithms) Motor Control and Safety (IEC 61508 SIL for industrial, IEC/UL 60335/60730 Class B for Home Appliance applications)