Ultrasonic Sensor Module HC-SR04 Distance Measuring Sensor For Arduino

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Product details

Description:
Working Voltage : 5V()

Static Current: Less than 2mA.

Output Signal: Electric frequency signal, high level 5V, low level 0V.

Sensor Angle: Not more than 15 degrees.

Distance: 2cm-450cm.

High Precision: Up to 0.3cm

Input Trigger Signal: 10us TTL impulse

Echo Signal : output TTL PWL signal

Mode of connection:

VCC

trig(T)

echo(R)

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.

Note : the module should be inserted in the circuit before been , which avoid producing high level

of misoperation;if not, then again.

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. distance =(high level time * sound velocity (340M/S) / 2.

Note :

This module is not suitable to connect with electric , if you need to connect this module with

electronic ,then let the GND terminal of this module to be connected first,otherwise, it will affect the

normal work of the module

Package Included:

1 x HC-SR04 Ultrasonic Module Distance Measuring Transducer

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