Ultrasonic sensor HC-SR04
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Description
The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package.
Features
- 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.
..Example :
Pins
- VCC: +5VDC
- Trig : Trigger (INPUT)
- Echo: Echo (OUTPUT)
- GND: GND
In this video we will learn the method of linking HC-SR04 sensor ultrasonic with the Arduino and showing the results on the screen LCD and the code of the Arduino.
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