Voice Activated Home Automation

I was thinking about writing an instructable, since last year though i read instructable daily on instructables.com. So, here is my first attempt i hope that you all appreciate my efforts. I am a B.Tech final year student of ECE department.

It's a project based on the day to day need of people. Using this system, anyone can control four appliances through human voice from a mobile. It's a very affordable home automation system.

Here is the list of all the components which we need:-

Hardware:-

1. Arduino Uno.

2. 5V Four channel Relay Module.

3. 16*2 LCD display.

4. Bluetooth module(HC-05).

5. Breadboard.

6. USB cable for Arduino Uno.

7. Connecting wires.

Software:-

Arduino IDE.

Android Application:-

BT Voice Control for Arduino by SimpleLabsIN.

LCD Connections

RS --> digital pin 7

Enable --> digital pin 6

d4 --> digital pin 5

d5 --> digital pin 4

d6 --> digital pin 3

d7 --> digital pin 2

Bluetooth Connections

TxD --> digital pin 0

RxD --> digital pin 1

Vcc --> 5V

Gnd --> Gnd

Relay Connections

In1 --> digital pin 10

In2 --> digital pin 11

In3 --> digital pin 12

In4 --> digital pin 13

Vcc --> 5V
Gnd --> Gnd

#include<SoftwareSerial.h>

#include<LiquidCrystal.h>

const int rxPin = 0;

const int txPin = 1;

SoftwareSerial mySerial(rxPin, txPin);

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

int light=10;

int fan=11;

int tv=12;

int ac=13;

String data;

void setup()

{

Serial.begin(9600);

mySerial.begin(9600);

pinMode(light, OUTPUT);

pinMode(fan, OUTPUT);

pinMode(tv, OUTPUT);

pinMode(ac, OUTPUT);

digitalWrite(light, LOW);

digitalWrite(fan, LOW);

digitalWrite(tv, LOW);

digitalWrite(ac, LOW);

Serial.begin(9600);

lcd.begin(16, 2);

lcd.print("VOICE ACTIVATED");

lcd.setCursor(0,1);

lcd.print("HOME AUTOMATION");

}

void loop()

{

int i=0;

char ch=0;

data="";

while(1)

{

while(mySerial.available()<=0);

ch = mySerial.read();

if(ch=='#') break; data+=ch;

}

Serial.println(data);

if(data=="*turn on light")

{

digitalWrite(light,HIGH);

Serial.println("light on");

lcd.clear();

lcd.print(" **LIGHT ON**");

}

else if(data=="*turn off light")

{

digitalWrite(light,LOW);

Serial.println("light off");

lcd.clear(); lcd.print(" **LIGHT OFF**");

}

else if(data=="*turn on fan")

{

digitalWrite(fan,HIGH);

Serial.println("fan on");

lcd.clear();

lcd.print(" **FAN ON**");

}

else if(data=="*turn off fan")

{

digitalWrite(fan,LOW);

Serial.println("fan off");

lcd.clear();

lcd.print(" **FAN OFF**");

}

else if(data=="*turn on TV")

{

digitalWrite(tv,HIGH);

Serial.println("tv on");

lcd.clear();

lcd.print(" **TV ON**");

}

else if(data=="*turn off TV")

{

digitalWrite(tv,LOW);

Serial.println("tv off");

lcd.clear();

lcd.print(" **TV OFF**");

}

else if(data=="*turn on AC")

{

digitalWrite(ac,HIGH);

Serial.println("ac on");

lcd.clear();

lcd.print(" **AC ON**");

}

else if(data=="*turn off AC")

{

digitalWrite(ac,LOW);

Serial.println("ac off");

lcd.clear();

lcd.print(" **AC OFF**");

}

else if(data=="*turn on all")

{

digitalWrite(ac,HIGH);

digitalWrite(light,HIGH);

digitalWrite(fan,HIGH);

digitalWrite(tv,HIGH);

Serial.println("all on");

lcd.clear();

lcd.print(" **ALL ON**");

}

else if(data=="*turn off all")

{

digitalWrite(ac,LOW);

digitalWrite(light,LOW);

digitalWrite(fan,LOW);

digitalWrite(tv,LOW);

Serial.println("all off");

lcd.clear();

lcd.print(" **ALL OFF**");

}

}

So, Here is the final setup i have made hope you all like it.