The HY-SRF05 ultrasonic distance measuring sensor module is a device that uses ultrasonic waves to measure distance. It consists of a transmitter and a receiver that are separated by a small distance. The transmitter sends out an ultrasonic pulse, and the receiver listens for the reflection of the pulse. By measuring the time it takes for the pulse to be reflected back to the receiver, the module is able to calculate the distance to the object.

The HY-SRF05 ultrasonic distance measuring sensor module is a widely used device that is commonly found in a variety of applications, including robotics, industrial automation, and security systems. It is able to measure distances from 2cm to 450cm with a resolution of approximately 1mm. It is a reliable and accurate sensor that is easy to use and integrate into a variety of projects.

This module is an upgrade from the popular HC-SR04 ultrasonic sensor. An extra pin is proivded to extract even more information than the HC-SR04 distance sensor.