Ultrasonic Wave Ranging Module Detector Distance Sensor HC-SR04 For NAZE32, etc.

Ultrasonic Wave Ranging Module Detector-SR04

Hot selling Ultrasonic Wave Ranging Module Detector Distance Sensor HC-SR04

Specifications:
Power supply : 5V DC
Quiescent current : <2mA
Effectual angle: <15°
Ranging distance : 2cm – 450 cm
Resolution : 3mm
Mode of connection: 1.VCC 2.trig (T) 3.echo (R) 4.GND Use method Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not. The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.

Module Working Principle:
1.Adopt IO trigger through supplying at least 10us sequence of high level signal.
2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving.
Test distance = (high level time * sound velocity (340M/S) / 2. Previous: ISD1820 Sound/Voice Recording Playback Recorder Module Board Microphone 3V-5V Next: Leonardo ATmega32u4 Microcontroller Board 16 MHz

What you Get:
1 x SR04 Ultrasonic Sensor Module

Note :
the module should be inserted in the circuit before been power, which avoid producing high level of misoperation; if not, then power again. This module is not suitable to connect with electric power, if you need to connect this module with electronic power, then let the GND terminal of this module to be connected first, otherwise, it will affect the normal work of the module!!!

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