What is Bluetooth Module HC-05? How It Works and How to Connect with Arduino

Introduction

The HC-05 Bluetooth module is a widely used wireless communication device, perfect for Arduino projects, student projects, and industrial automation. This module is commonly used in engineering projects and automation systems due to its affordability and ease of use. Whether you’re working on school projects or final year projects, the HC-05 module can be an excellent addition to your sep.

What is the HC-05 Bluetooth Module?

The HC-05 is a Bluetooth module that allows wireless communication between microcontrollers and other Bluetooth-enabled devices. It operates on serial communication, making it easy to interface with Arduino and other microcontrollers. This module is often found in electronics markets like Hall Road, Pakistan, where you can purchase it from trusted sellers such as QKZ Tech and QKZee Technologies.

How Does the HC-05 Work?

The HC-05 operates on Bluetooth 2.0 + EDR technology and supports both master and slave configurations. It uses UART (Universal Asynchronous Receiver-Transmitter) protocol to communicate with microcontrollers like Arduino. Due to its compatibility and reliability, it is widely used in automation and engineering projects.

Features of HC-05 Bluetooth Module

Voltage: 3.3V logic level, operates at 5V with a voltage divider
Frequency: 2.4 GHz ISM band
Communication: UART with configurable baud rate
Modes: Master and Slave
Range: Up to 10 meters
Applications: Student projects, industrial automation, school projects, engineering projects

Click Here to buy HC-05 Bluetooth module for arduino

How to Connect HC-05 with Arduino

Required Components:

Arduino Board
HC-05 Bluetooth Module
Jumper Wires
Breadboard (optional)

Connection Guide:

HC-05 Pin	Arduino Pin
VCC	5V
GND	GND
TXD	RX (Pin 10)
RXD	TX (Pin 11)
EN (Key)	Not required for basic setup

Setting Up HC-05 with Arduino Code

				
					#include <SoftwareSerial.h>
SoftwareSerial BTSerial(10, 11);  // RX, TX
void setup() {
  Serial.begin(9600);
  BTSerial.begin(9600);
}
void loop() {
  if (BTSerial.available()) {
    Serial.write(BTSerial.read());
  }
  if (Serial.available()) {
    BTSerial.write(Serial.read());
  }
}

Applications of HC-05 in Engineering Projects

Home Automation: Control home appliances using Bluetooth
Robotics: Wireless robot control
Medical Devices: Remote monitoring systems
Industrial Automation: Wireless machine control
Student Projects in Lahore: Used in school and final year projects

Why Choose QKZee Technologies?

At QKZee Technologies, we are committed to providing the best services and consultation for your projects. Here’s why we’re the best place for your needs:

High-quality Arduino, sensors, and modules.
Expert guidance for school projects, engineering projects, and automation.
Affordable solutions for students and professionals in Pakistan.
Visit Qasim Shop or contact us for all your project requirements.

Get Started with Your Project Today

The HC_05 Bluetooth Module is a game-changer for student projects, engineering projects, and industrial automation. Whether in Lahore, exploring Hall Road, or anywhere in Pakistan, QKZee Technologies is here to help you succeed.

For more information or to get started on your next project, contact us today. Let’s bring your ideas to life!

Where to Buy Your Color Sensor TCS200?

The HC-05 module is available at Hall Road Lahore and online stores like QKZ Tech and QKZee Technologies. QKZee Technologies provides consultation and services for students and professionals working on engineering and industrial projects. Looking for affordable components for this Arduino project? Check out QKZee Technologies, an online shop in Lahore, Pakistan, offering the best components for students and DIY projects. Whether you’re looking for sensors, modules, or other electronics at a cheap price, they’ve got it all. Visit them at QKZeeTech.