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

const int amostras = 13;

int tempo[amostras] = {60, 120, 180, 240, 300, 360, 420, 480, 540, 600,660, 720, 780};
float vazao[amostras] = {0.30, 0.28, 0.34, 0.42, 0.49, 0.53, 0.55, 0.48,0.36, 0.22, 0.28, 0.35, 0.46};

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {

    lcd.init();
    lcd.backlight();

    float volumeT = 0;

    for(int i = 1; i < amostras; i++) {

    float Tempo = tempo[i] - tempo[i - 1];

    float volumeParcial = (vazao[i - 1] + vazao[i]) * Tempo / 2;
    volumeT += volumeParcial;

    }

    lcd.print("Volume Total:");
    lcd.print(volumeT);
    delay(10000);

  }

  void loop(){


  }