Robots utilize sensors for navigation by collecting data from their environment, allowing them to make informed decisions and respond to obstacles effectively. Sensors such as LiDAR, infrared, and ultrasonic help robots detect distance, identify objects, and measure speed. By processing this sensory information, robots can create maps of their surroundings, allowing for autonomous movement and path planning. Additionally, integrating multiple sensors enhances accuracy and reliability, ensuring safe navigation in complex environments. Overall, sensors are critical for enabling robots to operate efficiently, especially in dynamic and unpredictable situations.