#include <OneWire.h>
#include <LiquidCrystal_I2C.h>

#define TRIG_PIN1 13
#define ECHO_PIN1 12

#define ledverde1 3
#define ledama1   4
#define ledverm1  5

LiquidCrystal_I2C lcd(0X26, 20, 4);

#define I2C_ADDR    0x26
#define LCD_COLUMNS 16
#define LCD_LINES   2


float nivel1;

void Lerdistancia1CM(void) 
{
  digitalWrite(TRIG_PIN1, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN1, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN1, LOW);
  int duration = pulseIn(ECHO_PIN1, HIGH);
  nivel1 = duration * 0.034 / 2;

  if(nivel1 <= 3){
   	digitalWrite(ledverde1, HIGH); 
    digitalWrite(ledama1, LOW);
    digitalWrite(ledverm1, LOW);
    
  } else if(nivel1 <= 10){
  	digitalWrite(ledverde1, LOW); 
    digitalWrite(ledama1, HIGH);
    digitalWrite(ledverm1, LOW);
  } else {
    digitalWrite(ledverde1, LOW); 
    digitalWrite(ledama1, LOW);
    digitalWrite(ledverm1, HIGH);
  }
}

void setup() {
  Serial.begin(115200);
  pinMode(TRIG_PIN1, OUTPUT);
  pinMode(ECHO_PIN1, INPUT);
  pinMode(ledverde1, OUTPUT);
  pinMode(ledama1, OUTPUT);
  pinMode(ledverm1, OUTPUT);

  //sensor.begin ();
}

void loop() 
{
  Lerdistancia1CM();

  Serial.println(nivel1);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("TANQUE 1:");
  lcd.setCursor(11, 0);
  lcd.print(nivel1);

}