/*
Fenil Chandarana
Fab Academy 2022
Webpage link: https://fabacademy.org/2022/labs/vigyanashram/students/fenil-chandarana/
*/

// include the library code:
#include <LiquidCrystal.h>
int ldr = 3;
int val = 0;
int led1 = 6;
int rst1 =8;
int led2 = 9;
int rst2 = 10;
int water = 7;
int x = 0;
int check = 0;
int m = 0;
int y = 0;
int flag1 = 0;
int flag2 = 0;
int rstcheck1 = 0;
int rstcheck2 = 0;
int plug1 = 1;
int plug2 = 1;

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd( rs, en, d4, d5, d6, d7);

void setup() {
  pinMode(ldr,INPUT);
  pinMode(water, INPUT);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(rst1, INPUT);
  pinMode(rst2, INPUT);
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  lcd.setCursor(0,0);
  lcd.print("masala dosa");
  delay(1000);
  lcd.clear();
  Serial.begin(9600);

}

void loop() {

 
  int i =0;
   for (i=0; i<90; i++){                                    //after which cycle resets
  check = digitalRead(water);
  rstcheck1 = digitalRead(rst1);
  rstcheck2 = digitalRead(rst2);
  val = analogRead(ldr);
  lcd.setCursor(0,0);
  lcd.print("Stream : ");
  lcd.print(x);
  lcd.setCursor(0,1);
  lcd.print("Drops : ");
  lcd.print(y);
   
   Serial.print("m = ");
      Serial.print(m);
      Serial.print(" ");
        if (check == HIGH &&  val > 10)                    // value of photoresistor
    {
      if (i < 80) {                                         // stream , constant power
      m=m+1;
     delay(80);
     if (m > 150)                                           // drop , fluctuating power
      {  y=y+1;
        m = 0;}
      }
      else { m = 0;}
                                                                 
    }
if (check == HIGH && i == 80)                            // suppose the value of i is 60 in "if (check == HIGH && i == 60)". Let say the stream breaks at 20 and resumed at 21 then +1 vill be incremented in stream when the number reaches at m=81. 21+60=81.
    { 
      if(val >10){                                        // photoresistor
        
      x = x+1;
   
      
      lcd.setCursor(0,0);
      lcd.print("Stream : ");
      lcd.print(x);
      lcd.setCursor(0,1);
      lcd.print("Drops :");
      lcd.print(y);
      delay (100);
     }
   }
     
      
      if (check == LOW && i>2)
      {
        
        
        i = 0;
        delay(100);
        
      }
      
      Serial.print(i);
      Serial.print(" ");
      Serial.print(check);
      Serial.print(" ");
      Serial.print(val);
      Serial.print(" ");
      Serial.print(x);
      
      if (y == 1)                                             // led for drop , fluctuating power
      {
        flag1 = 1;
        }
      if (flag1 == HIGH && plug1 == 1){
        digitalWrite (led1, HIGH);
        flag1 = 0;
      }

      if (x == 1)                                           // led for stream , constant power
      {
        flag2 = 1;
      }
      if (flag2 == HIGH && plug2 == 1)
      {
        digitalWrite (led2, HIGH);
        flag2 = 0;
        }

      if (rstcheck1 == 1){
      digitalWrite (led1, LOW);
      flag1 = 0;
      plug1 = 0;}

      if (rstcheck2 == 1){
      digitalWrite (led2, LOW);
      flag2 = 0;
      plug2 = 0;
      }
      
      Serial.print(flag1);
      Serial.print("  ");
      Serial.print(flag2);
      Serial.print("  ");
      Serial.print(rstcheck1);
      Serial.print("  ");
      Serial.println(rstcheck2);
  }
}