The Arm Cortex-M66+ MCU is a microcontroller unit developed by Arm Holdings, a British semiconductor and software design company. It is part of the Cortex-M series, which serves industries such as automotive, industrial automation, consumer electronics, and IoT. The Cortex-M66+ is optimized for high-performance, low-power applications, featuring advanced security, machine learning capabilities, and real-time processing. It is widely used in embedded systems for smart devices, sensors, and control systems.