LIN stands for Local Interconnect Network, a serial network protocol used in automotive applications. It allows various components in a vehicle, such as sensors and actuators, to communicate with each other efficiently. LIN is designed to be simple and cost-effective, making it ideal for low-speed communication tasks. The LIN protocol operates at a lower speed compared to other automotive networks like CAN (Controller Area Network). It typically supports data rates up to 20 kbps and is often used in applications like lighting control, seat adjustments, and climate control systems.