The Arm Cortex-M166+ MCU is a microcontroller unit (MCU) based on the ARM Cortex-M architecture, developed by ARM Holdings, a British semiconductor and software design company. ARM Holdings, now part of the Japan-based SoftBank Group, is renowned for its energy-efficient processor designs. The Cortex-M166+ MCU is tailored for embedded systems and serves industries such as industrial automation, consumer electronics, automotive, and IoT. It offers high performance, low power consumption, and integrated peripherals, making it ideal for real-time control applications.