/*  
Name project : Water Alarm System(M2) 
From         : MT department 
CC           : Mr.Rachna
Date         : 17,May,2025
Location     : Room Machine 2(M2)
*/
#include <Wire.h>
#define BLYNK_TEMPLATE_ID "TMPL6nAMQ3-pa"
#define BLYNK_TEMPLATE_NAME "Water Alarm System M2"
#define BLYNK_PRINT Serial
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
// Input digital from statuse of pump filter 
const int P2101 = 14;
const int P2102 = 27;
const int P2103 = 26;
const int P2104 = 25;
// Input Digital form statuse of submersible pump 
const int SP_RUN = 33;
const int SP_TRIP = 32;
// Digital output to Relay 5Vcc 
int  Relay1 = 15;
int  Relay2 = 4;
/*Analog Sensor for measuring level water in the surge tank 
HC-SR04:
Vcc to 5Vdc of power supply 
GND to 0V of Power Supply 
Trig to 13 of ESP32 
Echo to 12 of ESP32 
*/
int Trig = 13;
int Echo = 12;  
float Timer1 = 150.50;
float Timer2 = 200.20;
//Initialize the LCD display
LiquidCrystal_I2C lcd(0x27, 16, 2); 
BlynkTimer timer;
// My  Auth token
char auth[] = "8YGDupEPTbfJNr0ef7OFqTihFUt0ulIW";
 // My WIFI SSID and password
char ssid[] = "@***@"; 
char pass[] = "free1234";
void setup() {
  // Debug console
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //lcd.init();
  lcd.begin();
  lcd.backlight();
  pinMode(P2101, INPUT);
  pinMode(P2102, INPUT);
  pinMode(P2103, INPUT);
  pinMode(P2103, INPUT);
  pinMode(P2104, INPUT);
  pinMode(SP_RUN, INPUT);
  pinMode(SP_TRIP, INPUT);
  pinMode(Relay1, OUTPUT);
  pinMode(Relay2, OUTPUT);
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);
  lcd.setCursor(0, 0);
  lcd.print("SYSTEM LOADING...");
  for (int a = 0; a <= 15; a++) {
    lcd.setCursor(a, 1);
    lcd.print(".");
    delay(1000);
  }
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("POWER BY RACHNA...");
    delay(6000);
  lcd.clear();
  lcd.print("WATER ALARM M2...");
    delay(5000);
  lcd.clear();
}
void Water_level(){
  digitalWrite(Trig, LOW);
  delayMicroseconds(2);
  digitalWrite(Trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trig, LOW);
  // Read the pulse duration
  long duration = pulseIn(Echo, HIGH);
  // Calculate the distance
  float distance = duration * 0.034 / 2;
  Serial.print("Water Level =  ");
  Serial.print(distance);
  Serial.println(" cm");
   delay(Timer1);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("L.WATER = ");
  lcd.setCursor(10, 0);
  lcd.print(distance);
  lcd.setCursor(14, 0);
  lcd.print("cm");
  delay(Timer2);
   Blynk.virtualWrite(V1,distance);
  delay(100);
  // Alarm When High Level Water Leaking 
  int Sound = V10;
  if (distance<=35){
    digitalWrite(Relay1,HIGH);
    Blynk.virtualWrite(Sound,1);
      Serial.println("High Level");
        delay(Timer1);
        Blynk.logEvent("high_level", "Please Check your room_M2!!!");
        Blynk.logEvent("Bell_Auto", "Check Bell M2...!");
        delay(60000);
  }
  else{
    digitalWrite(Relay1,LOW);
    Blynk.virtualWrite(Sound,0);
     Serial.println("Low Level");
        delay(Timer1);
  }
  // Level in tank (%)
  float Height_Tank =1.7; // rate (m)
  int Sensor_position = 0.1;// rate (m)
  float distance_m = 0;
  float Water_volume = 0;
  float Volume_Tank = 0;
  float Tank = 0;
    distance_m = distance/100;
    Volume_Tank = 1*1.5*1.7;
    Water_volume =Height_Tank-distance_m-Sensor_position; // water level actual in tank 
    Tank =( Water_volume/Height_Tank)*100;
  lcd.setCursor(0, 1);
  lcd.print("V.TANK =");
  lcd.setCursor(9, 1);
  lcd.print(Tank);
  lcd.setCursor(14, 1);
  lcd.print(" %");  
  delay(Timer2);
    Serial.println("Tank(%)=  ");  
      Serial.println(Tank);
        delay(Timer1);
          Blynk.virtualWrite(V9,Tank); 
           delay(100);
           lcd.setCursor(0, 1);
}
 // Menual in cloud server 
void Status(){
  int P01 = V3;
  int P02 = V4;
  int P03 = V5;
  int P04 = V6;
  int SP_R = V7;
  int SP_T = V8;
  int pump01=digitalRead(P2101);
    if(pump01==HIGH){
      Blynk.virtualWrite(P01,1);
       Serial.println("on p01");
        delay(Timer2);
    }
  int pump02=digitalRead(P2102);
     if(pump02==HIGH){
      Blynk.virtualWrite(P02,1);
         Serial.println("on p02");
        delay(Timer2);
     }
  int pump03=digitalRead(P2103);
      if(pump03==HIGH){
       Blynk.virtualWrite(P03,1);
        Serial.println("on p03");
        delay(Timer2);
     } 
  int pump04=digitalRead(P2104);
      if(pump04==HIGH){
       Blynk.virtualWrite(P04,1);
        Serial.println("on p04");
        delay(Timer2);
  }
  int sp_run=digitalRead(SP_RUN);
      if(sp_run==HIGH){
       Blynk.virtualWrite(SP_R,1);
        Serial.println("on sp");
        delay(Timer2);
}
  int sp_trip=digitalRead(SP_TRIP);
      if(sp_trip==HIGH){
       Blynk.virtualWrite(SP_T,1);
        Serial.println("fault sp");
        delay(Timer2);
   }
     else {
       Blynk.virtualWrite(P01,0);
       Blynk.virtualWrite(P02,0);
       Blynk.virtualWrite(P03,0);
       Blynk.virtualWrite(P04,0);
       Blynk.virtualWrite(SP_R,0);
       Blynk.virtualWrite(SP_T,0);
        Serial.println("no status");
        delay(Timer2);
         Blynk.logEvent("Status_Pump", "Now at M2 Pump filter off all");
     }
  }

BLYNK_WRITE(V2){
     int Sound = V10;
     int buttonValue = param.asInt(); // Read the value of button widget 
      if(buttonValue == 1){
        digitalWrite(Relay2,HIGH);
        Blynk.virtualWrite(Sound,1);
          Blynk.logEvent("Bell_Ringing", "Plz Make Sure Your Action...!");
           delay(60000);
      }
      else{
        digitalWrite(Relay2,LOW);
         Blynk.virtualWrite(Sound,0);
      }
   }
  void loop(){
     Blynk.run();
     Status();
     Water_level();
      delay(120);

  }