Jrifedptry 1Pcs Ultrasonic Module -SR04 SR04 4Pin Distance Measuring Transducer Sensor Easy Install Easy to Use

Wiring methods, VCC, trig (control end), (receiver end), GND High precision module, blind spot (2cm) ultra close Description/Features: Stable performance and precise distance measurement Usage: If a control port sends a high level of 10US or more, you can wait for the high level output at the receiving port. Once there is an output, you can start the . When this port becomes low, you can read the value of the . This is the time for this distance measurement, and then the distance can be calculated. This continuous cycle measurement can reach the value of your mobile measurement