The ARM Cortex-M42+ MCU is a microcontroller unit (MCU) based on ARM's Cortex-M4 processor core, designed by ARM Holdings, a British semiconductor and software design company. The Cortex-M42+ is part of ARM's Cortex-M series, which serves industries such as industrial automation, automotive, consumer electronics, and IoT (Internet of Things). These MCUs are known for their high performance, energy efficiency, and real-time capabilities, making them ideal for embedded systems requiring advanced signal processing and control. ARM licenses its designs to various semiconductor manufacturers worldwide, enabling them to produce customized MCUs for diverse applications.