#include "BluetoothSerial.h"

BluetoothSerial SerialBT;
const int analogpin = 25;
const int LED = 26;
int waterlevel=0;
char Incoming_value = '0';

void setup()
{
  Serial.begin(115200);
  Serial.println("ESP32 started");
  SerialBT.begin("ESP32KEN"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");
  pinMode(LED, OUTPUT);
  digitalWrite(LED, LOW); 
}
 
void loop()
{
  //get data from sensor
  waterlevel = analogRead(analogpin);
  if (!waterlevel){waterlevel = 0;}
  
  //char wt = waterlevel.c_str();
  Serial.println(waterlevel);
  if (waterlevel > 500){
    digitalWrite(LED, HIGH); 
  }else{
    digitalWrite(LED, LOW);
  }
  
  SerialBT.println(waterlevel);   
  
  delay(200);
}