Reference

Principle

Similar to SR04 ultrasonic ranging modules in principle and using method, the ranging function of this sensor is triggered by high/low level output from the I/O ports of a host, and then the sensor converts ultrasonic flight time into a high pulse to output. The difference is that the sensor multiplexes input and output signals onto one signal port, which allows users to easily use the sensor for distance measurement only by one I/O port of a controller. Meanwhile, the adoption of advanced hardware and software design ensures excellent and reliable measuring performance.