The Arm Cortex-M204+ MCU is a microcontroller unit (MCU) developed by Arm Holdings, a British semiconductor and software design company. Arm designs the Cortex-M series as energy-efficient, high-performance processors for embedded systems. The Cortex-M204+ MCU targets industrial automation, IoT, and consumer electronics applications, offering features like real-time processing, low power consumption, and integrated peripherals. These MCUs are widely used by manufacturers in sectors such as automotive, healthcare, and smart devices. Arm licenses its designs to global chipmakers, enabling mass production of Cortex-M-based products.