IO ports in microcontroller

I/O ports in microcontrollers are interfaces that allow the microcontroller to communicate with external devices, such as sensors, actuators, and other peripherals. Each port typically consists of multiple pins that can be configured as input or output, enabling the microcontroller to read data from or send data to external components. The configuration can often be changed during operation, allowing for flexible control of connected devices. Additionally, I/O ports may support various functions, such as analog-to-digital conversion or pulse-width modulation, enhancing their utility in embedded applications.