lazyboyproto

#include <LiquidCrystal.h>
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

unsigned long startTime = 0;

int lcdbacklight = 6;
int lcdstate = HIGH;
/*
    2   LCD DATA
    3   "     "
    4   "     "
    5   "     "
6 lcdbacklight
7 Sensor 1
8 RelayFan
9 RelayTube
10 Sensor2
    11  "     "
14 btube
15 bfan
16 lcd switch
17 badds
18 bsubs
*/
long pcount = 1;

void off(int interval){	  //******enter time in sec and not msec ****** & to clear and set time of display
    unsigned long currentMillis = millis();
    if ((millis() - startTime )>= (interval*1000)){    
      lcdstate = LOW ;
      digitalWrite(lcdbacklight , lcdstate) ;
      startTime = millis() ;
    }
  }

void on(){		//to turn on the display
    lcdstate = HIGH ;
    lcd.display();
    lcd.clear();
    digitalWrite(lcdbacklight, lcdstate);
    lcd.setCursor(0,0);
  }


class Button{
  int inPin;         // the number of the input pin
  int outPin;       // the number of the output pin
  int state = HIGH;      // the current state of the output pin
  int reading;           // the current reading from the input pin
  int previous = LOW;    // the previous reading from the input pin

  unsigned long time = 0;           // the last time the output pin was toggled
  unsigned long debounce = 250UL;   // the debounce time, increase if the output flickers

  public :                        //constructor
  Button(int bpin , int ledpin){
    inPin = bpin;
    outPin = ledpin;
  } 
  
    void Setup (){                //initialization
      pinMode(inPin,  INPUT);
      pinMode(outPin, OUTPUT);
    }
    
    bool bpressed = 0 ;           //state of button 
    
      void Loop(){
        reading = digitalRead(inPin);
        //bool bpressed = 0 ;
        if (reading == HIGH && previous == LOW && ((millis() - time) > debounce)){// if the input just went from LOW and HIGH and we've waited long enough
          if (state == HIGH){                                                     // to ignore any noise on the circuit, toggle the output pin and remember the time
              state = LOW;
          }
          else{
              state = HIGH;
            }
        time = millis();
        bpressed = 1;
        }
        else
        bpressed = 0;
      digitalWrite(outPin, state);
      previous = reading;
    }
    int BPRESSED(){
      return bpressed;
    }
    
    int STATE(){
      return state ;  
    }
    
  };

Button btube(14,0);   //initializing objects
Button bfan(15,0);

class Button2{        //Button Pins for adding /removing the no of people
  int bPin ;
  public:
    Button2(int pinno){
    bPin = pinno;  
    }

  void Setup(){
    pinMode(bPin , INPUT);
  }
  
  unsigned long time = 0;
  unsigned long debounce = 250UL ;
  int reading ;
  int previous = HIGH;
  
  bool bpressed = 0;
  void Loop(){
    reading = digitalRead(bPin);
    if(reading == HIGH && previous == LOW && (millis() - time >= debounce ) ){
      bpressed = 1;
      time = millis();
      //Serial.println("the buttons pressed");
    }
    else
      bpressed = 0;
      
    previous = reading;
  }
  
  void addsp(){
    if(bpressed == 1){
      pcount++;
      on();
      lcd.print("person count = ");
      lcd.setCursor(1,1);
      lcd.print(pcount);
    }
  }
  
  void subsp(){
    if(bpressed == 1){
      pcount--;
      on();
      lcd.print("person count = ");
      lcd.setCursor(1,1);
      lcd.print(pcount);
    }
  }
};

Button2 badds(17);
Button2 bsubs(18);

// PIR MOTION DETECTOR CLASS 

class Pir{
  
int pir;
int reading ;
public:               //constructor
  Pir(long pinno){    
    pir = pinno;
  }
  
  void Setup(){         //Setup
    pinMode(pir,INPUT);
  }
  unsigned long currentTime = 100;    //?
  void Loop(){
    reading = digitalRead(pir);
    if(reading == HIGH){              //if reading is high then time is recorded
      currentTime = millis();
    }
    else
      currentTime = 0 ;  
  }
  
  
  long timer(){
    return currentTime;           //returns the stored current time
  }
};
Pir sensor1(7);
Pir sensor2(10);

const int relaytube = 9;
const int relayfan = 8;
bool atdoor = false;    //variables
//bool inside = false;
bool abouttoleave = false;
//bool outside = false;


//    INSIDE AND OUTSIDE FUNCTIONS THEY RETURN THE STATE OF APPLIANCE


void door(){
digitalWrite(relaytube ,btube.STATE() );    //tells what happens when someone is at the door ie sensor 1 triggerer only
}

void inside(){
    digitalWrite(relaytube,btube.STATE());    //tells what happens when someone is inside ie both sensors are triggered with 1 one 1st
    digitalWrite(relayfan,bfan.STATE());
    pcount ++;                              //adds people in the room 
  }
  
  void outside(){
    pcount --;        //removes the person count in the room
    if(pcount == 0 ){ //if room is empty turns of all appliances
      digitalWrite(relaytube,LOW);
      digitalWrite(relayfan,LOW);
    }
  }
  
  
  //      THE MAIN SETUP 
  
  
void setup() {
  // put your setup code here, to run once:
    digitalWrite(lcdbacklight,HIGH);
    lcd.begin(16, 2);
  pinMode(relaytube,OUTPUT);
  pinMode(relayfan,OUTPUT);
  
  
  //  Serial.begin(9600);
    lcd.setCursor(3,0);			//bullshit ... litreally
    lcd.print("LOADING...");//delay ensures sufficient time for booting up the sensors IE 30 sec
    lcd.setCursor(3, 1 );
    lcd.print(".....");
    delay(25000);
    ///lcd.on()
    lcd.clear();
    
    lcd.setCursor(0,0);
    lcd.print("SENSORS FIRED UP");
    lcd.setCursor(0,2);
    lcd.print("AND NOW RUNNING");
    delay(5000);			
  
  btube.Setup();  //setup conditions for each object
  bfan.Setup();
  badds.Setup();
  bsubs.Setup();
}


//THE MAIN LOOP


void loop() {
    //Loop conditions for each object
    badds.Loop();
    bsubs.Loop();
    
    badds.addsp();
    bsubs.subsp();
    
    // Serial.print("person count :-");Serial.println(pcount);
    
    btube.Loop();
    
    if(btube.BPRESSED() == 1){    //if onboard tube button is pressed
      if(btube.STATE() == 1){     //if on state, then ACTIVE ie tube will be toggled if person count >0
        on();
        lcd.print("The tube's");
        lcd.setCursor(1,1);
        lcd.print("ACTIVE");
        // off(3);
      }
    else{
        on();                     //  the tube is disabled ie tube will not toggle if p count >0
        lcd.print("The tube's");
        lcd.setCursor(1,1);
        lcd.print("INACTIVE");
        // off(3);
      }
    }
    else{}  //redundant
    
    bfan.Loop();
    //similar to the tube
    if(bfan.BPRESSED() == 1){ 
      if(bfan.STATE() == 1){
        on();
        lcd.print("The fan's");
        lcd.setCursor(1,1);
        lcd.print("ACTIVE");
      }
      else{
        on();
        lcd.print("The fan's");
        lcd.setCursor(1,1);
        lcd.print("INACTIVE");
       // off(3);
      }
    }
    
    sensor1.Loop();
    sensor2.Loop();
    
  if( ((sensor1.timer()) > 0) && (sensor2.timer() == 0)){ //only sensor 1 is triggered
    door();     //door function
    atdoor = true;
    //Serial.println("motn at door or s1");
    on();
    lcd.print("Someones at the");
    lcd.setCursor(1,1);
    lcd.print("door");
  }
  if( atdoor == true && (sensor2.timer() != 0) ){ //both sensors triggered t1 for s1 > t2 for s2
    inside();   
    on();
   // Serial.println(" inside");
    lcd.print("You've made it");
    lcd.setCursor(1,1);
    lcd.print("inside");
    atdoor = false ;
   // inside = true;
  }
  if( (sensor2.timer()>0)  && (sensor1.timer() == 0)){    //only sensor 2 is triggered
    abouttoleave = true ;
    on();
    lcd.print("Leaving...?");
  }

  
  if(abouttoleave == true && (sensor1.timer() != 0)){  
    abouttoleave = false ; 
    outside();
    on();
    lcd.print("GOODBYE");
  //  Serial.println("outside");
    lcd.setCursor(1,1);
    lcd.print(pcount);
  }  
  /*
  Serial.print("s1-");
  Serial.println(sensor1.timer());
  Serial.print("s2-");
  Serial.println(sensor2.timer());*/
  
  
    
  //lcd.setCursor(0,10);
  //lcd.print(pcount);
off(5);
delay(50);
}