1pcs HC-SR04 Ultrasonic Module,Stenes

Origin:CN(Origin) Type:Detector Ranging Module Model Number:HC-SR04 Operating Temperature:-40°C~+85°C Supply Voltage:3.3V Voltage: DC5V level output: the output of the high-5V level: the end of 0V Induction Angle: not more than 15 degrees detection range: 2cm-450cm High precision: up to 0.3cm Panel wiring, VCC, trig 's (control side), the echo (receiving end), out (empty feet), GND IO trigger ranging to at least 10us high signal; module automatically sends eight 40kHz square wave, automatically detect whether a signal return; a signal to return to a high IO output, high duration of the ultrasonic time from launch to return. Test distance = (time high×speed of sound (340M/S))/2