The STM32WB55RGV7 with ARM Microcontrollers (MCU), manufactured by STMicroelectronics, is a 16/32-bit microcontroller that is part of the STM32 WB55 series. It has a Cortex-M4F processor and a Cortex-M0+ processor, both of which are based on ARM architecture. It also has a range of features that include a total of 128 Kbytes of Flash, 512 Kbytes of SRAM, two serial audio interfaces, eight 12-bit direct memory access (DMA) channels, two I2C, two USART, and two LIN interfaces, advanced cryptography acceleration, and an LCD controller. Additionally, this part also has a variety of specific features for wireless Bluetooth including the 5.2 radio, an Arm TrustZone CryptoCell-310 cryptographic accelerator, low-power wake-up receiver, adaptive frequency hopping, enhanced power control, and advanced connection logic. This makes this STM32 MCU a great choice for applications requiring Bluetooth and other wireless technologies.