#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16,2);
#include "BluetoothSerial.h"

BluetoothSerial ESP_BT; //Object for Bluetooth

int incoming;
const int pinPot = 34;
const int pinLED = 2;
int sensor = 0;
int levelsensor=0;
float vin;
int brightness = 0;
void setup() {
// put your setup code here, to run once:
pinMode(pinPot, INPUT) ;
pinMode(pinLED, OUTPUT) ;
Serial.begin(115200);
lcd.init();
lcd.backlight();
lcd.setCursor(4,0);
lcd.print("2304004");
Serial.println("2304004");
//Name of your Bluetooth Signal
ESP_BT.begin ("ESP32_LED_BIMA");
}

void loop() {

  sensor = analogRead(pinPot);
  vin=((float)(3.3*sensor))/4095;

  levelsensor=map(sensor, 2047, 4095, 0, 100);

  lcd.clear();
  lcd.setCursor(0, 0);

  lcd.print("2304004 bima : ");
  
  lcd.setCursor(0, 1);
  lcd.print(sensor,1);
  lcd.setCursor(6, 1);
  lcd.print(vin,1);
  lcd.setCursor(9, 1);
  lcd.print("V");
  lcd.setCursor(12, 1);
  if (levelsensor>=0 and levelsensor<=100) {
    lcd.print(levelsensor,1);
    lcd.setCursor(15, 1);
    lcd.print("%");
  }
  
  if (vin<3) {
    Serial.println("Empty");
  }else{

    Serial.print(levelsensor);
    Serial.println("%");
  }
  Serial.print("Nilai Sensor : ");
  Serial.println(sensor);
  if (ESP_BT.available())
  {
    incoming = ESP_BT.read();
    Serial.print("Received:"); Serial.println(incoming);
    if (incoming==49) 
        {
       digitalWrite(pinLED, HIGH);
       ESP_BT.println("Led turned ON");
        }
    if (incoming==48) 
        {
      digitalWrite(pinLED, LOW);
      ESP_BT.println("Led turned OFF");
        }
  }
  delay(1000);
}