SMART SWITCHES

This project is a part of Smart Home Project, Click here to see overview and dependencies

Watch Video Here

Smart switches contains 6 switches which can be operated through touch.

Slide up  on the red indicator to switch  'ON'  and  Slide down  on it to switch ' OFF'.

Below is the Overview of the system :

Below is the image showing the switch board used :

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The casing used above is of the normal switch board casing with all the  indicators  installed.

The internal components of each indicator is replaced with  two IR detectors ,  one IR transmitter  and  one LED  as shown in the image above. 

The back of the switch panel is shown in below image with LM538 (op-amp) connected one for each switch :

The outputs of the op-amps are given as inputs to  Arduino Uno**  **micro-controller board used in the system.

The Code :-

#include 

SoftwareSerial mySerial(9, 10); // Pin 9 as RX and Pin 10 as TX

void setup() {
 mySerial.begin(9600); // Setting the baud rate of GSM Module  
 Serial.begin(9600); // Setting the baud rate of Serial Monitor (Arduino)
 pinMode ( 2, INPUT);
 pinMode ( 3, INPUT);
 pinMode ( 4, INPUT);
 pinMode ( 5, INPUT);
 pinMode ( 6, INPUT);
 pinMode ( 7, INPUT);
 pinMode ( 8, INPUT);
 pinMode ( 11, INPUT); //Input mode for 4 IR switches
 pinMode ( A0, OUTPUT);
 pinMode ( A1, OUTPUT);
 pinMode ( A2, OUTPUT);
 pinMode ( A3, OUTPUT);
 pinMode ( A4, OUTPUT);
 pinMode ( A5, OUTPUT); // Output for 6 relays and LEDs

}
void loop() 
{
 if ( digitalRead(2)==HIGH)
{
  digitalWrite(A0, HIGH); // Switch 1 'ON' state
}
if ( digitalRead(3)==HIGH)
{
  digitalWrite(A0, LOW); // Switch 1 'OFF' state
}
if ( digitalRead(4)==HIGH)
{
  digitalWrite(A1, HIGH); //Switch 2 'ON' state
}
if ( digitalRead(5)==HIGH)
{
  digitalWrite(A1, LOW); //Switch 2 'OFF' state
}
if ( digitalRead(6)==HIGH)
{
  digitalWrite(A2, HIGH); //Switch 3 'ON' state
}
if ( digitalRead(7)==HIGH)
{
  digitalWrite(A2, LOW); //Switch 3 'OFF' state
}
if ( digitalRead(8)==HIGH)
{
  digitalWrite(A3, HIGH); //Switch 4 'ON' state
}
if ( digitalRead(11)==HIGH)
{
  digitalWrite(A3, LOW); //Switch 4 'OFF' state
}



 if (Serial.available()>0)  
 { char ch = Serial.read(); // Input from bluetooth module
   if(ch=='A')
   {
     digitalWrite(A0, HIGH); // switch 'ON' switch 1
   }
   if(ch=='a')
   {
     digitalWrite(A0, LOW); // switch 'OFF' switch 1
   }


    if(ch=='B')
   {
     digitalWrite(A1, HIGH); // switch 'ON' switch 2
   }
   if(ch=='b')
   {
     digitalWrite(A1, LOW); // switch 'OFF' switch 2
   }


    if(ch=='C')
   {
     digitalWrite(A2, HIGH); // switch 'ON' switch 3
   }
   if(ch=='c')
   {
     digitalWrite(A2, LOW); // switch 'OFF' switch 3
   }


    if(ch=='D')
   {
     digitalWrite(A3, HIGH); // switch 'ON' switch 4
   }
   if(ch=='d')
   {
     digitalWrite(A3, LOW); // switch 'OFF' switch 4
   }


    if(ch=='E')
   {
     digitalWrite(A4, HIGH); // switch 'ON' switch 5
   }
   if(ch=='e')
   {
     digitalWrite(A4, LOW); // switch 'OFF' switch 5
   }


    if(ch=='F')
   {
     digitalWrite(A5, HIGH); // switch 'ON' switch 6
   }
   if(ch=='f')
   {
     digitalWrite(A5, LOW); // switch 'OFF' switch 6
   }


     if(ch=='G')
   {
     mySerial.write('G'); // send a signal to window/curtain controller to open Window
   }
   if(ch=='g')
   {
    mySerial.write('g'); // send a signal to window/curtain controller to close Window
   }


    if(ch=='H')
   {
     mySerial.write('H'); // send a signal to window/curtain controller to open curtain
   }
   if(ch =='h')
   {
    mySerial.write('h'); // send a signal to window/curtain controller to close curtain
   }
 }


 if (mySerial.available()>0)
 {
 if(mySerial.read()=='Z') // receive a signal from door controller through window/curtain controller to switch 'OFF' all the lights
 {
 digitalWrite(A0, LOW);
 digitalWrite(A1, LOW);
 digitalWrite(A2, LOW);
 digitalWrite(A3, LOW);
 digitalWrite(A4, LOW);
 digitalWrite(A5, LOW); // switch all the switches 'OFF'
 }
 }

}