/*
  ||\\\\\\\\\\\\\////////////||
  ||   Project By Ferdy      ||
  ||     Lampu Toren         ||
  ||/////////////\\\\\\\\\\\\||
*/
#include <LiquidCrystal_I2C.h>
#include <Wire.h>

LiquidCrystal_I2C LCD(0x27, 16, 2);

int trig = 8;
int echo = 7;
int jarak, duransi;

int hijau = 6;
int kuning = 5;
int merah = 4;
int pompa = 3;


void setup() {

  LCD.init();
  LCD.backlight();
  LCD.clear();

  pinMode(hijau, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(merah, OUTPUT);
  pinMode(pompa, OUTPUT);

  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);

  LCD.setCursor(1, 0);
  LCD.print("Selamat Datang");
  LCD.setCursor(5, 1);
  LCD.print("Master");
  delay(3000);
  LCD.clear();

}

void loop() {
  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  duransi = pulseIn(echo, HIGH);
  jarak = duransi * 0.0344 / 2;

  if (jarak < 10) {
    digitalWrite(hijau, HIGH);
    digitalWrite(kuning, LOW);
    digitalWrite(merah, LOW);
    digitalWrite(pompa, LOW);
    LCD.setCursor(0, 0);
    LCD.print("Tinggi Air:");
    LCD.print(jarak);
    LCD.print("cm   ");
    LCD.setCursor(0, 1);
    LCD.print("Lampu: Hijau  ");
  } else if (jarak >= 10 && jarak < 50) {
    digitalWrite(hijau, LOW);
    digitalWrite(kuning, HIGH);
    digitalWrite(merah, LOW);
    digitalWrite(pompa, HIGH);
    LCD.setCursor(0, 0);
    LCD.print("Tinggi Air:");
    LCD.print(jarak);
    LCD.print("cm   ");
    LCD.setCursor(0, 1);
    LCD.print("Lampu: Kuning ");
  } else if (jarak >= 50) {
    digitalWrite(hijau, LOW);
    digitalWrite(kuning, LOW);
    digitalWrite(merah, HIGH);
    digitalWrite(pompa, HIGH);
    LCD.setCursor(0, 0);
    LCD.print("Tinggi Air:");
    LCD.print(jarak);
    LCD.print("cm   ");
    LCD.setCursor(0, 1);
    LCD.print("Lampu: Merah  ");
  }

}

// jika air kurang dari 10 cm maka hijau menyala
// pompa padam
// jika air lebih dari 10 cm dan air kurang dari 50cm maka kuning menyala
// jika air lebih dari 50 cm maka Merah menyala
// lampu pompa menyala