HCSR04 ARDUINO ULTRASONIC SENSOR

HCSR04 ARDUINO ULTRASONIC SENSOR

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Ultrasonic Sensor HC-SR04 is a sensor that can measure distance. It emits an ultrasound at 40 000 Hz (40kHz) which travels through the air and if there is an object or obstacle on its path It will bounce back to the module. Considering the travel time and the speed of the sound you can calculate the distance.

The configuration pin of HC-SR04 is VCC (1), TRIG (2), ECHO (3), and GND (4). The supply voltage of VCC is +5V and you can attach TRIG and ECHO pin to any Digital I/O in your Arduino Board.

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Category: ARDUINO Module Tag: HCSR04 ARDUINO ULTRASONIC SENSOR

Description
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Description

Features

Here’s a list of some of the HC-SR04 ultrasonic sensor features and specs:

Power Supply :+5V DC
Quiescent Current : <2mA
Working Current: 15mA
Effectual Angle: <15°
Ranging Distance : 2cm – 400 cm/1″ – 13ft
Resolution : 0.3 cm
Measuring Angle: 30 degree
Trigger Input Pulse width: 10uS
Dimension: 45mm x 20mm x 15mm

How Does it Work?

The ultrasonic sensor uses sonar to determine the distance to an object. Here’s what happens:

The transmitter (trig pin) sends a signal: a high-frequency sound.
When the signal finds an object, it is reflected and…
… the transmitter (echo pin) receives it.

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