The ARM Cortex-M4+ MCU is a series of microcontroller units (MCUs) developed by ARM Holdings, a British semiconductor and software design company. These MCUs are widely used in embedded systems across industries such as automotive, industrial automation, consumer electronics, and IoT. The Cortex-M4+ core combines high performance with low power consumption, featuring a floating-point unit (FPU) and enhanced DSP capabilities. It is licensed to various chip manufacturers globally, including STMicroelectronics, NXP, and Texas Instruments, who integrate it into their products for applications like motor control, smart sensors, and wearable devices.