Published May 17, 2021 © GPL3+

Home Automation Device

Home Automation Device using GSM Module

IntermediateFull instructions provided429

Things used in this project

Hardware components

Arduino Nano R3

GSM SIM 900

Alphanumeric LCD, 16 x 2

Relay Module (Generic)

Single Turn Potentiometer- 10k ohms

Resistor 330 ohm

Jumper wires (generic)

12v 1 amp DC Adapter

Hologram Global IoT SIM Card

Android device

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Hot glue gun (generic)

Story

Hey Buddies..

I have made Home Automation Device using GSM Module.

Now switch On or Off your home appliances from where ever you are.

I have used LEDs as Loads. You can use sockets in place of LEDs.

Make it yours..

You can use it as a Engineering Project or school project.

If you like this project then respect it.

You can make this device.

Steps to make this device :

1. Take Arduino Nano, GSM Module, Relay Module, LCD display, Jumper wires, SIM card & Jumper wires.

2. Place LCD module on box.

3. Place Arduino Nano on box.

4. Place GSM Module on box.

5. Place Relay Module on box.

6. Do connections from circuit diagram.

7. Upload the code & the connect Tx and RX pins of GSM Module.

8. Now connect 12v adapter to GSM Module and cable to Arduino Nano.

9. Now place sim card on the GSM Module.

10. Now take another mobile phone and send text from operation table to sim card number.

Now your appliances will turn On & Off from anywhere.

If you like this project Do like the video and share it with your friends.

I have uploaded a lot of Arduino projects on my channel " Electronics is Fun "

Link to channel is below :

https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g

Code

Code

// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
// Home Automation Device using GSM Module //
// By MOHD SOHAIL //


#include<LiquidCrystal.h>
LiquidCrystal lcd(A0,A1,A2,A3,A4,A5);
#define Fan 3
#define Light 4
#define TV 5

int temp=0,i=0;
int led=13;
char str[15];
void setup()
{
  lcd.begin(16,2);
  Serial.begin(9600);
  pinMode(led, OUTPUT);
  pinMode(Fan, OUTPUT);
  pinMode(Light, OUTPUT);
  pinMode(TV, OUTPUT);
  
  lcd.setCursor(0,0);
  lcd.print("  GSM Based  ");
  lcd.setCursor(0,1);
  lcd.print("Home Automation");
  delay(2000);
  lcd.clear();
  lcd.print(" EIF - SOHAIL ");
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("System Ready");
  Serial.println("AT+CNMI=2,2,0,0,0"); // Auto opened message Receiving.
  delay(500);
  Serial.println("AT+CMGF=1"); //Selecting Text mode
  delay(1000);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Fan   Light  TV ");
  lcd.setCursor(0,1);
  lcd.print("OFF    OFF   OFF "); 
}
void loop()
{
  lcd.setCursor(0,0);
  lcd.print("Fan   Light  TV");
  serialEvent();
  if(temp==1)
  {
    check();
    temp=0;
    i=0;
    delay(1000);
  }
}
 void serialEvent() 
 {
  while(Serial.available()) 
  {
    if(Serial.find("#S."))
    {
      digitalWrite(led, HIGH);
      delay(1000);
      digitalWrite(led, LOW);
      while (Serial.available()) 
      {
      char inChar=Serial.read();
      str[i++]=inChar;
      if(inChar=='*')
      {
        temp=1;
        return;
      } 
      } 
    }
   }
 }
void check()
{
   if(!(strncmp(str,"tv on",5)))
    {
      digitalWrite(TV, HIGH);
      lcd.setCursor(13,1); 
      lcd.print("ON    ");
      delay(200);
    }  
   
   else if(!(strncmp(str,"tv off",6)))
    {
      digitalWrite(TV, LOW);
      lcd.setCursor(13,1); 
      lcd.print("OFF    ");
      delay(200);
    }
  
    else if(!(strncmp(str,"fan on",5)))
    {
      digitalWrite(Fan, HIGH);
      lcd.setCursor(0,1); 
      lcd.print("ON   ");
      delay(200);
    }
 
    else if(!(strncmp(str,"fan off",7)))
    {
      digitalWrite(Fan, LOW);
      lcd.setCursor(0,1); 
      lcd.print("OFF    ");
      delay(200);
    }
 
    else if(!(strncmp(str,"light on",8)))
    {
      digitalWrite(Light, HIGH);
      lcd.setCursor(7,1); 
      lcd.print("ON    ");
      delay(200);
    }
 
    else if(!(strncmp(str,"light off",9)))
    {
      digitalWrite(Light, LOW);
      lcd.setCursor(7,1); 
      lcd.print("OFF    ");
      delay(200);
    } 
    
    else if(!(strncmp(str,"all on",6)))
    {
      digitalWrite(Light, HIGH);
      digitalWrite(Fan, HIGH);
      digitalWrite(TV, HIGH);
      lcd.setCursor(0,1); 
      lcd.print("ON     ON    ON  ");
      delay(200);
    }
 
    else if(!(strncmp(str,"all off",7)))
    {
      digitalWrite(Light, LOW);
      digitalWrite(Fan, LOW);
      digitalWrite(TV, LOW);
      lcd.setCursor(0,1); 
      lcd.print("OFF   OFF    OFF  ");
      delay(200);
    }
    }