A Wireless Sensor Network (WSN) is an integral component of the Internet of Things (IoT) ecosystem. It comprises a network of spatially distributed autonomous sensors, also known as "nodes," that monitor and collect data from the physical world. These sensors can measure various environmental parameters such as temperature, humidity, pressure, light, sound, motion, and more. The collected data is then transmitted wirelessly to a central processing unit or a data repository for analysis and decision-making. WSNs are designed to enable real-time monitoring, data collection, and control in a wide range of applications, including environmental monitoring, industrial automation, smart agriculture, and healthcare.