arduino_wireless_home_automation_part_1.c

/*created by Prasant Bhatt 
 www.facebook.com/elefy
 you can do whatever you want with this code 
*/
#include <LiquidCrystal.h>`
LiquidCrystal lcd(10, 9, 8, 7, 6, 5);
// constants won't change. They're used here to 
// set pin numbers:
const int buttonPin1 = 2;     // the number of the pushbutton pin
const int buttonPin2 = 3;
const int buttonPin3 = 4;
const int relayPin1 = 13;      // the number of the relay pin
const int relayPin2 = 12 ;
const int relayPin3 = 11;
// variables will change:
int buttonState1 = 0;         // variable for reading the pushbutton status
int buttonState2 = 0;
int buttonState3 = 0;

void setup() {
  // initialize the relay pins as an output:
  pinMode(relayPin1, OUTPUT);   
  pinMode(relayPin2,OUTPUT);
  pinMode(relayPin3,OUTPUT);  
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin1, INPUT); 
  pinMode(buttonPin2, INPUT); 
  pinMode(buttonPin3, INPUT); 
   lcd.begin (20, 4);
  lcd.clear ();
  lcd.setCursor (0, 0);
  lcd.print ("WWW.ELECTRONIFY.ORG");
 
}

void loop(){
  // read the state of the pushbutton value:
  buttonState1 = digitalRead(buttonPin1);
  buttonState2=digitalRead(buttonPin2);
  buttonState3=digitalRead(buttonPin3);
  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (buttonState1 == HIGH) {     
    // turn Lamp on:    
    digitalWrite(relayPin1, HIGH);
  lcd.setCursor (0, 1);
  lcd.print ("LAMP 1 IS ON ");  
  } 
  else {
    // turn Lamp off:
    digitalWrite(relayPin1, LOW); 
    lcd.setCursor (0, 1);
  lcd.print ("LAMP 1 IS OFF ");
  }
  if(buttonState2==HIGH){
    digitalWrite(relayPin2,HIGH);
    lcd.setCursor (0, 2);
  lcd.print ("FAN IS ON ");
  }
  else{
    digitalWrite(relayPin2,LOW);
    lcd.setCursor (0, 2);
  lcd.print ("FAN IS OFF ");
  }
  if(buttonState3==HIGH){
    digitalWrite(relayPin3,HIGH);
    lcd.setCursor (0, 3);
  lcd.print ("LAMP 2 IS ON  ");
  }
  else{
    digitalWrite(relayPin3,LOW);
    lcd.setCursor (0, 3);
  lcd.print ("LAMP2 IS OFF ");
  }
}