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

LiquidCrystal_I2C LCD(0x27, 16, 2);

#define T 12
#define E 14
int contador = 0,nivel=0;
long duration;
int distance;

void setup() 
{ pinMode(T, OUTPUT);
  pinMode(E, INPUT);
  Serial.begin(115200);
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print(" SENAI CFP 1.01 ");
  LCD.setCursor(0, 1);
  LCD.print(" TEC. MECATRONICA ");
  delay(1000);
  LCD.clear();

}
void loop() 
{ 
  digitalWrite(T, HIGH);
  delayMicroseconds(10);
  digitalWrite(T, LOW);
  duration = pulseIn(E, HIGH);
  contador = duration * 0.425;
  distance =  contador; 
  LCD.setCursor(0, 0);
  LCD.print(distance);
  LCD.setCursor(4, 0);
  LCD.print("  mm");
  
}
//map(contador,12133,23550,0,400);