The Arm Cortex-M242+ 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 is headquartered in Cambridge, UK, and is a subsidiary of SoftBank Group. The Cortex-M series serves industries such as industrial automation, consumer electronics, automotive, and IoT (Internet of Things). The Cortex-M242+ MCU is designed for embedded applications requiring low power consumption, real-time performance, and connectivity. Key products in this series include microcontrollers with integrated peripherals, DSP capabilities, and security features, widely used in sensors, motor control, and smart devices.