#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
  
  lcd.init();
  lcd.backlight();
  Serial.begin(115200);

  int tempo[13] = {60, 120, 180, 240, 300, 360, 420, 480, 540, 600, 660, 720, 780};
    float vazao[13] = {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};
    
    float volume_total = 0.0;

    // Calculando o volume usando a regra dos trapézios
    for (int i = 1; i < 13; i++) {
        float intervalo_de_tempo = tempo[i] - tempo[i - 1];
        float volume = (vazao[i - 1] + vazao[i]) * intervalo_de_tempo / 2.0;
        volume_total += volume;
    }

    lcd.setCursor(0,0);
    lcd.print("V total = "+ (String)volume_total);
    
    

}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}