Distance Measuring Module 5V Ultrasonic Wave Distance Measuring Module Board Ranging Module Waterproof Sensor

Specifications: Working Voltage DC5V Quiescent Working Current 5mA Total Working Current 30mA Wave Transmit Frequency 40kHz Max. Measuring Distance 5m Blind Zone 25cm Size 28.5*41mm Resolution Approx 0.5cm Angle <50 degree Working Temperature -10?~70? Storage Temperature -20?~80? Wiring: +5V (power supply positive) Trig (control) RX Echo (receive) TX GND (power supply negative) Basic Working Principle: (1) Using IO port TRIG trigger measuring distance, high level signal for at least 10uS. (2) Module automatically sends eight 40kHz square wave, automatically detects whether there is return signal. (3) When there is return signal, through IO port ECHO output a high level, the duration of the high level is the time of ultrasonic wave from sending to returning.Test distance = (high level time * sound velocity (340m/S))/2; Formula: uS/58= cm    or     uS/148= inches; Or: Distance = high level time * sound velocity(340m/S)/2; Suggested test cycle is more than 60ms, in order to prevent effect of transmitting signal on echo signal. Package Includes: 1 x Distance Measuring Module and Sensor