Published October 8, 2016 © GPL3+

IR Home Automation With Intelligent Lighting

With help of this device we can control multiple household appliances with help of an IR remote.

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IR Home Automation With Intelligent Lighting

Things used in this project

Hardware components

Arduino UNO

IR receiver (generic)

Relay (generic)

Adafruit Standard LCD - 16x2 White on Blue

Software apps and online services

Arduino Web Editor

Story

I began my project by tinkering around with an old IR receiver which I salvaged from an old CRT TV (coz the one I brought from store gave me random readings).

Each button in an IR remote corresponds to a unique set of hexadecimal codes, so in order to know which is which attach your IR sensor to Arduino (plz refer the sensors data sheet for the pin layout)

Further details on the project is available on this link.

Now to the intelligent lighting part.

Intelligent lighting is a lighting technology designed for energy efficiency. This may include high efficiency fixtures and automated controls that make adjustments based on conditions such as occupancy or daylight availability. Lighting is the deliberate application of light to achieve some aesthetic or practical effect. It includes task lighting, accent lighting , and general lighting. Solar streetlights can be easily integrated with a dusk-dawn controller by simply employing a PNP transistor and a few resistor. The unit is compact and has a rich light output, the system is an improved version of the classic ambient-light sensor circuitry.

I bypassed the connection to a DUSK-DAWN Controller to one of the relays attached to the circuit. Such that when the relay is in high state instead of Lighting the LED it goes to a Controller which measures the light ambiance of the room and decides whether to turn the LED on or off.

Schematics

Schematics of the circuit is given below:

Circuit diagram for the Dusk-Dawn controller

The circuit needs a supply voltage of 12V, but care should be taken to ensure that adequate current is available for the whole system

Circuit of the light unit is built around light dependent resistor, op-amp LM358, transistor BC547,LEDs, 12V DC power supply . The LDR has very low resistance when exposed to high-intensity light and very high resistance when it is in the dark, LDR and resistor form a voltage divider connected at the inverting (IN-) input of IC, Non-inverting (IN+) input of IC is connected to 10K potmeter VR to adjust the switching-threshold level as desired If ambient lights level is sufficient the circuit id in quiescent state. When the light level decreases, resistance of LDR increases, which causes volt age across resistor to decrease, hence the circuit becomes active.

Code

Arduino Code

#include<LiquidCrystal.h>
#include <IRremote.h>
const int RECV_PIN=14;
IRrecv irrecv(RECV_PIN);
decode_results results;
#include<LiquidCrystal.h>
LiquidCrystal lcd(6,7,8,9,10,11);
#define Fan 3
#define auto 2
#define Light 4
#define TV 5
int a = 12;
//const int LED=13;
int val=0;
int i=0,j=0,k=0,p=0,q=0,r=0,n=0;
void setup()
{
  Serial.begin(9600);
  lcd.begin(16,2);
  pinMode(Fan, OUTPUT);
  pinMode(Light, OUTPUT);
  pinMode(TV, OUTPUT);
  pinMode(auto, OUTPUT);
  pinMode(a, OUTPUT);
  //pinMode(LED,OUTPUT);
  //digitalWrite(13,HIGH);
  lcd.print("Remote Controlled"); 
  lcd.setCursor(0,1);
  lcd.print("Home Automation"); 
  delay(2000);
  lcd.clear();
  lcd.print("INTRODUCTION TO");
  lcd.setCursor(0,1);
  lcd.print("SUSTAINABLE ENGG");
  delay(2500);
  lcd.clear();
  lcd.print("**** ADERSH ****");
  lcd.setCursor(0,1);
  delay(2500);
  lcd.print("System Ready...");
  delay(1000);
  irrecv.enableIRIn(); // Start the receiver
  irrecv.blink13(true);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Fan   Light  LED ");
  lcd.setCursor(0,1);
  lcd.print("OFF   OFF    OFF");
}
void loop() 
{
   
   val= analogRead(1);
  //Serial.println(results.value,DEC);
  
  if (irrecv.decode(&results)) 
   {
     Serial.println(val);
    
   Serial.println(results.value,DEC);
     delay(100);
     lcd.setCursor(0,0);
     lcd.print("Fan   Light  LED"); 
     if(results.value==2640478335)
     {
        i++;
        int x=i%2;
        digitalWrite(Fan, x);
        lcd.setCursor(0,1);
        if(x)
        lcd.print("ON  ");
        else
        lcd.print("OFF ");
       // delay(200);
     }
    
     else if(results.value==2640462015)    //  key 1 
     {
        j++;
        int x=j%2;
        digitalWrite(Light, x);
        lcd.setCursor(6,1);
        if(x)
        lcd.print("ON   ");
        else
        lcd.print("OFF  ");
       // delay(200);
     }
   
    else if(results.value==2640494655)
     {
        k++;
        //int x=k%2;
       // int h=(k/3);
        //Serial.println(k);
       // digitalWrite(TV, x);
        lcd.setCursor(12,1);
        if(k==1)
        {
          lcd.print(" ON ");
          digitalWrite(TV, k);
        }
        else if(k==2)
        {
          
          lcd.print("AUTO");
          digitalWrite(a, HIGH);
          digitalWrite(auto, 1);
          digitalWrite(TV, 0);
          
          
         
         //Serial.println(val);
          }
          
          
        
        else if(k==3)
        {
          lcd.print(" OFF");
          k=0;
          digitalWrite(auto, k);
          digitalWrite(a, 0);
          digitalWrite(TV, k);
          
        }
       
           
       
       // delay(200);
     }
       
       
       else if(results.value==2640474255)
       {
        n++;
        int x=n%2;
        digitalWrite(TV, x);
        digitalWrite(Fan,x);
        digitalWrite(Light,x);
        lcd.setCursor(0,1);
        if(x)
        lcd.print("ON     ON    ON ");
        else
        lcd.print("OFF    OFF   OFF");
        //delay(200);
       }
       
       /*else if(results.value==2640474255)
       {
        p++;
        int x=k%2;
        //digitalWrite(TV, x);
        lcd.setCursor(13,1);
        if(x)
        lcd.print("AUTO");
        else
        lcd.print("OFF");
       }*/
     irrecv.resume(); // Receive the next value
     //delay(100);
   }
}

Credits

Adersh B

1 project • 8 followers

An Engineer unrestricted by trade. Makers are meant be "Jack of all".

Thanks to Saddam - Circuit Digest.

IR Home Automation With Intelligent Lighting

Things used in this project

Hardware components

Software apps and online services

Story

Now to the intelligent lighting part.

Schematics

Schematics

CIRCUIT DIAGRAM

Code

Arduino Code

Credits

Adersh B

Comments

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IR Home Automation With Intelligent Lighting

IR Home Automation With Intelligent Lighting

Things used in this project

Hardware components

Software apps and online services

Story

Now to the intelligent lighting part.

Schematics

Schematics

CIRCUIT DIAGRAM

Code

Arduino Code

Credits

Adersh B

Comments

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