Krïtika, Dr. Umesh Dutta, Vikas Sharma, Vaishnavi

Published October 11, 2024

Smart Home Automation with Bluetooth Control

Experience innovative home automation by wirelessly managing multiple appliances via Bluetooth, enhancing convenience and efficiency.

BeginnerFull instructions provided528

Smart Home Automation with Bluetooth Control

Things used in this project

Hardware components

Arduino UNO

The microcontroller board that controls the system.

ControlEverything.com 4-CHANNEL RELAY CONTROLLER FOR I2C

Controls up to four appliances by switching them on or off.

Jumper wires (generic)

Used for all electrical connections.

Psd3304 Power

Provides power to the Arduino and relay module

HC-05 Bluetooth Module

Enables wireless communication with a smartphone.

extension Board

Facilitates connections for multiple appliances.

LED Light Bulb, Frosted GLS

The load connected to one of the relays as an example.

Software apps and online services

Arduino IDE

The Integrated Development Environment used for writing and uploading the Arduino code.

BlueApp.io

A mobile app (like Bluetooth Terminal) used to send commands to the HC-05 module. You may also create a custom app if desired.

Autodesk Tinkercad

Online platform for designing and simulating circuits, allowing you to visualize and test your project virtually.

Story

Aim

To create a Bluetooth-controlled smart home automation system using Arduino, enabling wireless control of multiple appliances.

Working

• Arduino receives commands via Bluetooth from a smartphone app.

• Commands trigger relays to turn appliances ON or OFF based on specified inputs.

• Real-time control of appliances is facilitated through wireless communication.

Merits

• Convenience: Allows remote control of home appliances from a smartphone.

• Energy Efficiency: Enables users to manage power consumption effectively.

• Scalability: Can easily add more appliances by extending the relay connections.

• Cost-Effective: Uses affordable components for home automation.

• User-Friendly: Simple command structure for controlling appliances.

The Bluetooth-controlled smart home automation system using Arduino offers a simple way to manage home appliances wirelessly. With affordable components like the HC-05 Bluetooth module and relays, users can easily turn appliances on and off using their smartphones. This project improves convenience and energy efficiency and can be expanded to control more devices in the future. Overall, it provides a practical solution for making homes smarter and more connected.

Bluetooth-Controlled Smart Home Automation: Effortlessly manage your appliances wirelessly with a simple, Arduino-powered system

Code

Arduino-Based Bluetooth Home Automation System

// Define pin numbers for the LEDs (or appliances)
int led1 = 12; // Pin for the first appliance
int led2 = 11; // Pin for the second appliance
int led3 = 10; // Pin for the third appliance
int led4 = 9;  // Pin for the fourth appliance (connected to the bulb)

// Setup function runs once when you power on or reset the Arduino
void setup() {
  Serial.begin(9600); // Start serial communication at 9600 baud rate
  // Set each LED pin as an OUTPUT
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
}

// Loop function runs continuously
void loop() {
  char inbyte; // Variable to store incoming serial data
  // Check if there's data available to read
  if (Serial.available() > 0) {
    inbyte = Serial.read(); // Read the incoming byte
    Serial.print(inbyte); // Print the received byte to the Serial Monitor

    // Control LED1 (or appliance 1)
    if (inbyte == 'A') { // If 'A' is received, turn ON
      digitalWrite(led1, HIGH); // Turn on LED1
    }
    if (inbyte == 'B') { // If 'B' is received, turn OFF
      digitalWrite(led1, LOW); // Turn off LED1
    }

    // Control LED2 (or appliance 2)
    if (inbyte == 'C') { // If 'C' is received, turn ON
      digitalWrite(led2, HIGH); // Turn on LED2
    }
    if (inbyte == 'D') { // If 'D' is received, turn OFF
      digitalWrite(led2, LOW); // Turn off LED2
    }

    // Control LED3 (or appliance 3)
    if (inbyte == 'E') { // If 'E' is received, turn ON
      digitalWrite(led3, HIGH); // Turn on LED3
    }
    if (inbyte == 'F') { // If 'F' is received, turn OFF
      digitalWrite(led3, LOW); // Turn off LED3
    }

    // Control LED4 (or appliance 4)
    if (inbyte == 'G') { // If 'G' is received, turn ON
      digitalWrite(led4, HIGH); // Turn on LED4
    }
    if (inbyte == 'H') { // If 'H' is received, turn OFF
      digitalWrite(led4, LOW); // Turn off LED4
    }
  }
}