Buy HC-SR04 Ultrasonic Distance Sensors In Pakistan

This post is all about the Ultrasonic Sensor HC – SR04. I’ll explain how it works, show some features and share an Arduino Project example to help you with your projects.

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. From 2cm to 400 cm or 1” to 13 feet. It operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with ultrasonic transmitter and receiver module.

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

 Pins

• VCC: +5VDC
• Trig : Trigger (INPUT)
• Echo: Echo (OUTPUT)
• GND: GND

Arduino with HC – SR04 Sensor

This sensor is really cool and popular among the Arduino Tinkerers. So I’ve decided to post a project example using this sensor. In this project the ultrasonic sensor read and write the distance in the serial monitor. It’s really simple.

RELATED CONTENT: Like ESP8266? Check out Home Automation Using ESP8266

My goal is to help you understand how this sensor works and then you can use this example in your own projects.
Note: There’s an Arduino library called NewPing that can make your life easier when using this sensor.

Schematics

Source code

/*
 * created by Rui Santos, http://randomnerdtutorials.com
 * 
 * Complete Guide for Ultrasonic Sensor HC-SR04
 *
    Ultrasonic sensor Pins:
        VCC: +5VDC
        Trig : Trigger (INPUT) - Pin11
        Echo: Echo (OUTPUT) - Pin 12
        GND: GND
 */
 int trigPin = 11;    //Trig - green Jumper
int echoPin = 12;    //Echo - yellow Jumper
long duration, cm, inches;
 void setup() {
  //Serial Port begin
  Serial.begin (9600);
  //Define inputs and outputs
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}
 void loop()
{
 
 
  // The sensor is triggered by a HIGH pulse of 10 or more microseconds.
  // Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
 
  // Read the signal from the sensor: a HIGH pulse whose
  // duration is the time (in microseconds) from the sending
  // of the ping to the reception of its echo off of an object.
  pinMode(echoPin, INPUT);
  duration = pulseIn(echoPin, HIGH);
 
  // convert the time into a distance
  cm = (duration/2) / 29.1;
  inches = (duration/2) / 74; 
  
  Serial.print(inches);
  Serial.print("in, ");
  Serial.print(cm);
  Serial.print("cm");
  Serial.println();
  
  delay(250);
}

For Further Information Contact Us:

Shipping All Across Pakistan
COMPANY: MATRIX ELECTRONICS
CONTACT PERSON:
FAIZAN MUNIR
Mobile:03002785860
Email : sales@matrixelectronic.com
www.matrixelectronic.com 
Address: Shop#2, Hassan Center Near Passport Office Sadder Karachi