/*
  Smoothing

  Reads repeatedly from an analog input, calculating a running average and
  printing it to the computer. Keeps ten readings in an array and continually
  averages them.

  The circuit:
  - analog sensor (potentiometer will do) attached to analog input 0

  created 22 Apr 2007
  by David A. Mellis  <[email protected]>
  modified 9 Apr 2012
  by Tom Igoe

  This example code is in the public domain.

  https://www.arduino.cc/en/Tutorial/BuiltInExamples/Smoothing
*/

// Define the number of samples to keep track of. The higher the number, the
// more the readings will be smoothed, but the slower the output will respond to
// the input. Using a constant rather than a normal variable lets us use this
// value to determine the size of the readings array.
const int numReadings = 10;

int readings[numReadings];      // the readings from the analog input
int readIndex = 0;              // the index of the current reading
int total = 0;                  // the running total
int average = 0;                // the average

int inputPin = A0;

const float   Length1 = 615        ; // cm
const float   Height1 = 150        ; // cm
const float   Width1  = 220        ; // cm

const float   Length2 = 585        ; // cm
const float   Height2 = 140        ; // cm
const float   Width2  = 220        ; // cm

long Distance1;
long Distance2;

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

void setup() {
  // initialize serial communication with computer:
  Serial.begin(9600);
  // initialize all the readings to 0:
  for (int thisReading = 0; thisReading < numReadings; thisReading++) {
    readings[thisReading] = 0;
  }

  lcd.init();                      // initialize the lcd 
  lcd.init();
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("MONITORING DOTP");
  lcd.setCursor(0,1);
  lcd.print("UTILITY-PROJECT");
  lcd.setCursor(0,2);
  lcd.print("PT.PORTO INDONESIA");
  lcd.setCursor(0,3);
  lcd.print("Updt:11/01/23|01:46");
  delay(5000);
  lcd.clear();
  
}

void loop() {
  // subtract the last reading:
  total = total - readings[readIndex];
  // read from the sensor:
  readings[readIndex] = analogRead(inputPin);
  // add the reading to the total:
  total = total + readings[readIndex];
  // advance to the next position in the array:
  readIndex = readIndex + 1;

  // if we're at the end of the array...
  if (readIndex >= numReadings) {
    // ...wrap around to the beginning:
    readIndex = 0;
    
  }

  // calculate the average:
  average = total / numReadings;
  // send it to the computer as ASCII digits
  
  delay(500);        // delay in between reads for stability

//==================Kedalaman===================\\

float   value   = map(average,200,1023,0,1023);
int     Depth1  = (value / 1023.00) * 200; //cm
double  acosine = acos (1-(2 * (Depth1)/Height1));
long     Volume  = ( (Height1 * Width1 * Length1 / 4) * ( (acosine) -  ((1 - (2*Depth1/Height1)) * (sqrt((4*Depth1/Height1) - ((4* Depth1*Depth1)/(Height1*Height1)))))) );
Volume          = Volume/1000;
int volume_C    = Volume;
   

Serial.print("Analog: " + (String)average);
Serial.print(" | Depth.1: " + (String)Depth1);
Serial.print(" Cm");
Serial.print(" | V.DOTP1: " + (String)Volume);
Serial.println(" L");

  lcd.setCursor(0,0);
  lcd.print("Depth.1:" + (String)Depth1);
  lcd.print(" Cm  ");
  lcd.setCursor(0,1);
 lcd.print("V.DOTP1:" + (String)Volume);
lcd.print(" L  ");
 if(Volume >16000 || Volume <0){
  lcd.clear();
 // }

  

}