The Arm Cortex-M381+ MCU is a microcontroller unit based on the ARM Cortex-M architecture, developed by Arm Holdings, a British semiconductor and software design company. Arm Holdings, headquartered in the UK, is a global leader in microprocessor intellectual property, serving industries such as automotive, industrial automation, consumer electronics, and IoT. The Cortex-M series, including the M381+ variant, is widely used in embedded systems for its low power consumption, high performance, and real-time capabilities. These MCUs are commonly integrated into devices like sensors, motor controls, and smart appliances, making them a key component in modern industrial and consumer applications.