The Arm Cortex-M105+ MCU is a microcontroller unit (MCU) series developed by Arm Holdings, a British semiconductor and software design company. These MCUs are widely used in industrial automation, consumer electronics, and embedded systems. The Cortex-M105+ series is known for its energy efficiency, real-time processing capabilities, and scalability, making it suitable for applications like IoT devices, motor control, and smart sensors. Arm licenses its designs to manufacturers globally, enabling diverse hardware implementations.