Home /Office Automatioin with Arduino control and without Arduino control update

Home /Office Automatioin with Arduino control

and without Arduino control update

Previous version of article Here

This project is designed and intended to make life simpler, make things easier for the elderly and handicapped, and to save energy costs. The idea of an office automation system will definitely improve the working standards in the workplace.

The fundamental control system uses a Bluetooth module which gives wireless access to smart phones. The appliances controlled depends on what appliances is plugged into the system. The system design will not remove the existing actuating switches, but rather it will be controlled with a low voltage system technique. This system is designed to control electrical devices throughout the home/office. It will be very easy to install, add or change electrical devices connected to the system.

The system can also control lights in the home/office based on the natural light. The lights will also be motion activated meaning that the lights will only be on when people are in the area. The system will be easy to use as well as cost effective. The power for this system will be provided by the mains but in future by renewable energy. The renewable energy that will be used in this system is solar power via solar panels.

Parts List

· Arduino Nano

· Android Cell phone

· Android Application Here

· AC-DC power adapter, 9v @0.5a

· Project Case

· 1 x 10Kohm Potentiometer

· HC-05 Bluetooth Module

· Relay Module

Tools Required

· Soldering iron and solder

· Power Supply

· Wire stripper

· Computer loaded with the Arduino IDE

Features

5 mechanical relays with status indicator LED

Both “NC” and “NO” ports for each relay

Specifications

Module Type: Control

Weight: 130.00g

Board Size: 9.1 x 7.2 x 2cm

Version: 1.1

Operation Level: Digital 5V

Power Supply: External 12V
(you can only use for relay IC Power and arduino power with the help of 7805)

Method of using the relay module

The power source is connected to the input circuit of the relay. When a small current flows in this circuit, the relay will activate its output circuit, allowing a much bigger current to flow which will switch on the electrical appliances. By connecting the power source to the input of the relay and the electrical appliance is required to be active it must be connected to the normally open pin (NO), otherwise it should be connected to the normally closed pin (NC).

Features:

· Epoxy encapsulated

· Small dimensions

· Operating temperature -25°C-+75°C.

Applications:

· Contrast control in TV sets

· Auto flash for cameras

· Room light control

· Electronic toys

· Industrial control

Circuit Diagram:
You can control appliances with andriod app or simply Push Button

Code:


// Prepare by Iteam.co

#include <LiquidCrystal.h>
LiquidCrystal lcd(A0, A1, A2, A3, A4, A5); 
//_____________Button 1 start
int stateRelay1 = LOW;
int stateButton1;
int previous1 = LOW;
long time1 = 0;
long debounce1 = 500;
//_____________Button 1 End
//_____________Button 2 start
int stateRelay2 = LOW;
int stateButton2;
int previous2 = LOW;
long time2 = 0;
long debounce2 = 500;
//_____________Button 2 End
//_____________Button 3 start
int stateRelay3 = LOW;
int stateButton3;
int previous3 = LOW;
long time3 = 0;
long debounce3 = 500;
//_____________Button 3 End
//_____________Button 4 start
int stateRelay4 = LOW;
int stateButton4;
int previous4 = LOW;
long time4 = 0;
long debounce4 = 500;
//_____________Button 4 End
//_____________Button 5 start
int stateRelay5 = LOW;
int stateButton5;
int previous5 = LOW;
long time5 = 0;
long debounce5 = 500;
//_____________Button 5 End
//_____________Button ALL start
int stateRelay6 = LOW;
int previous6 = LOW;
//_____________Button ALL End

                  long tem=0;
char junk;
String inputString="";

void setup()                  
{
    digitalWrite(12, HIGH);
 Serial.begin(9600);          
    pinMode(2, INPUT);
     pinMode(9, OUTPUT);
    pinMode(3, INPUT);
     pinMode(10, OUTPUT);
    pinMode(4, INPUT);
     pinMode(11, OUTPUT);
    pinMode(5, INPUT);
     pinMode(12, OUTPUT);
    pinMode(6, INPUT);
     pinMode(13, OUTPUT);
     pinMode(8, OUTPUT);

              lcd.begin(16,2); 
                  lcd.print("Powered By"); 
              lcd.setCursor(0,1);
                  lcd.print("    Iteam.co     "); 
              delay(2000);
              lcd.clear();   
              lcd.begin(16,2); 
                  lcd.print(" In the Name of"); 
              lcd.setCursor(0,1);
                  lcd.print("     ALLAH     "); 
              delay(2000);
              lcd.clear();
                  lcd.print(" Most Beneficent"); 
              lcd.setCursor(0,1);
                  lcd.print("   & Merciful   "); 
              delay(2000);
              lcd.clear();
                  lcd.print(" Start Working ");
              lcd.setCursor(0,1);              
              for(int i=1;i<16;i++)
                      {lcd.print("."); 
                       delay(200);}      
              lcd.clear();
              lcd.begin(16,2); 
              lcd.print(" Waiting Signal ");
}
void loop()
{
         if (tem==10000)
        {                          if(stateRelay1 == HIGH)
                       {
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 1 ON    "); }             
                                   
        }
        else if (tem==15000)
        {                          if(stateRelay2 == HIGH)
                       {
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 2 ON    "); }
                  
        }
        else if (tem==20000)
        {                          if(stateRelay3 == HIGH)
                       {
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 3 ON    "); }
                                       
        }
        else if (tem==25000)
        {                          if(stateRelay4 == HIGH)
                       {
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 4 ON    "); }
                                       
        }
        else if (tem==30000)
       {                           if(stateRelay5 == HIGH)
                       {  
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 5 ON    "); }
            tem=0;              
        }
              //Serial.print(tem);
              //Serial.println();        
        tem++;                                              

 
    if(Serial.available()){
           while(Serial.available())
              {char inChar = (char)Serial.read(); 
               inputString += inChar;        
              }
           Serial.println(inputString);
           while (Serial.available() > 0)  
              { junk = Serial.read() ; } 
         
    if(inputString == "0")
    {         
             if(stateRelay1 == HIGH)
                       {stateRelay1 = LOW;
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 1 OFF   "); }
             else
                       {stateRelay1 = HIGH;
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 1 ON    "); }
             digitalWrite(9, stateRelay1);
    }
    else if(inputString == "1")
    {  
              if(stateRelay2 == HIGH)
                        {stateRelay2 = LOW;
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 2 OFF   "); }        
              else
                        {stateRelay2 = HIGH;
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 2 ON    "); }
             digitalWrite(10, stateRelay2);       
    }
    
    else if(inputString == "2")
    {  
              if(stateRelay3 == HIGH)
                        {stateRelay3 = LOW; 
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 3 OFF   "); }                        
              else 
                        {stateRelay3 = HIGH;
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 3 ON    "); }
              digitalWrite(11, stateRelay3);       
    }
    
    else if(inputString == "3")
    {  
              if(stateRelay4 == HIGH)
                        {stateRelay4 = LOW; 
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 4 OFF   "); }                        
              else 
                       {stateRelay4 = HIGH;
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 4 ON    "); }
             digitalWrite(12, stateRelay4);       
    }
    
    else if(inputString == "4")
    {  
              if(stateRelay5 == HIGH)
                        {stateRelay5 = LOW; 
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 5 OFF   "); }         
             else 
                        {stateRelay5 = HIGH;
                           lcd.setCursor(0,1);
                           lcd.print(" Switch 5 ON    "); }
             digitalWrite(13, stateRelay5);       
    }
    
    inputString = "";
    
  }
  //-------------Button 1 Start
     stateButton1 = digitalRead(2);  
  if(stateButton1 == HIGH && previous1 == LOW && millis() - time1 > debounce1) 
    {
             if(stateRelay1 == HIGH)
                       {stateRelay1 = LOW; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 1 OFF   "); }                       
             else 
                       {stateRelay1 = HIGH; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 1 ON    "); }                       
             time1 = millis();
    }
             digitalWrite(9, stateRelay1);
             previous1 == stateButton1; 
  //-------------Button 1 End

  //-------------Button 2 Start
     stateButton2 = digitalRead(3);  
  if(stateButton2 == HIGH && previous2 == LOW && millis() - time2 > debounce2) 
  {
           if(stateRelay2 == HIGH)
                     {stateRelay2 = LOW; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 2 OFF   "); }                     
           else 
                     {stateRelay2 = HIGH; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 2 ON    "); }                     
           time2 = millis();
    }
           digitalWrite(10, stateRelay2);
           previous2 == stateButton2; 
  //-------------Button 2 End
  
    //-------------Button 3 Start
     stateButton3 = digitalRead(4);  
  if(stateButton3 == HIGH && previous3 == LOW && millis() - time3 > debounce3) 
  {
            if(stateRelay3 == HIGH)
                      {stateRelay3 = LOW; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 3 OFF   "); }                      
            else 
                      {stateRelay3 = HIGH; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 3 ON    "); }                      
            time3 = millis();
    }
            digitalWrite(11, stateRelay3);
            previous3== stateButton3; 
  //-------------Button 3 End
  
      //-------------Button 4 Start
     stateButton4 = digitalRead(5);  
  if(stateButton4 == HIGH && previous4 == LOW && millis() - time4 > debounce4) 
  {
            if(stateRelay4 == HIGH)
                      {stateRelay4 = LOW; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 4 OFF   "); }     
            else 
                      {stateRelay4 = HIGH; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 4 ON    "); }                      
            time4 = millis();
    }
            digitalWrite(12, stateRelay4);
            previous4== stateButton4; 
  //-------------Button 4 End
  
      //-------------Button 5 Start
     stateButton5 = digitalRead(6);  
  if(stateButton5 == HIGH && previous5 == LOW && millis() - time5 > debounce5) 
  {
            if(stateRelay5 == HIGH)
                      {stateRelay5 = LOW;
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 5 OFF   "); }                      
            else 
                      {stateRelay5 = HIGH; 
                          lcd.setCursor(0,1);
                          lcd.print(" Switch 5 ON    "); }                      
            time5 = millis();
    }
            digitalWrite(13, stateRelay5);
            previous5== stateButton5; 
  //-------------Button 5 End
 
}