2Pcs JSN-SR04T Integrated Ultrasonic Distance Measuring Sensor Transducer Module Waterproof Compatible with Arduino

AJ-SR04M-T-X ultrasonic ranging module is designed by using a waterproof stripline probe integrated with transceiver and receiver and non-contact ultrasonic detection technology. In the range of 20 cm to 600 cm, the product can accurately detect the distance between plane objects, and in the range of 20 cm to 250 cm, it can accurately measure people. Specification? Electrical parameters: JSN-SR04T Resolution: about 0.5cm Angle: less than 75 degrees Acoustic emission frequency: 40khz Wiring: + 5V (positive power supply) Trig (control side) RX Echo (the receiver) TX GND (negative) The basic working principle: (1) Using IO port TRIG trigger location, to at least 10us high-level signal; (2) Module automatically sends 8 40KHz square wave, automatically detect whether there is signal return; (3) A signal return, a high level is output through the IO port ECHO, the time duration of the high level is ultrasonic from launch to return. The test distance = (high level time * speed of sound (340M/S)) /2; The use of this module is simple, a control mouth made a 10US above the high level, you can wait for the reception of high-level output. An output can be opened timer time, when the mouth becomes low when you can read the value of the timer, this time for the distance of time, can calculate the distance. Such a continuous cycle measurement, which can be measured to achieve the value of your move. Package Included: 2* JSN-SR04T Ultrasonic Distance Measuring Sensor