Sensors are vital components in the Internet of Things (IoT). They collect and measure data from the physical environment, such as temperature, humidity, and motion, which enables devices to respond intelligently. The data gathered by sensors allows for real-time monitoring and automated decision-making, enhancing efficiency in various applications, from home automation to industrial processes. By transmitting this data to cloud services or local networks, sensors facilitate data analytics, which informs insights and actions, creating a more connected and smarter environment.