Ultrasonic Sensor Ultrasonic Measuring Distance Sensor Transmitter Receiver Module HC-SR04

Product Description

This is a commonly used ultrasonic sensor, which can detect whether there is an obstacle in front and detect the detailed distance between the sensor and the obstacle. Its principle is the same as the principle of bat flight, that is, the ultrasonic module sends out an ultrasonic signal with a high frequency that cannot be heard by the human body. If these ultrasonic signals hit an obstacle, they will be reflected back immediately. After receiving the returned information, the distance between the sensor and the obstacle is calculated by judging the time difference between the transmitted signal and the received signal. This module is compatible with various single-chip control boards, such as Arduino series single-chip microcomputers. The module contains 2 interfaces for you to choose. One is a white terminal with a spacing of 2.54mm for anti-reverse insertion. When using it, we can use the wires that come with the module to connect to the single-chip microcomputer. For the convenience of wiring, we have also specially designed an expansion board that is fully compatible with this module and the Arduino UNO R3 single-chip microcomputer. The other is a pin header interface with a spacing of 2.54mm, which can be directly connected to the single-chip microcomputer using a male to female DuPont line.

Product Parameters

Specifications

Wire length: 200mm

Working voltage: DC5V

Interface: anti-reverse interface/pin header interface

Working current: 15mA

Working frequency: 40khz

Maximum detection distance: 3-4m

Minimum detection distance: 2cm

Sensing angle: no more than 15 degrees

High precision: up to 3mm

Positioning hole size: 2mm in diameter

Dimensions: 45*26*15mm

Weight: 8.7g

Product Photos

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