#include "BluetoothSerial.h"
#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif

int salida =  15;

//Variables de control y/o lectura
char valor;
String readString;

BluetoothSerial SerialBT;
// setting PWM properties
const int freq = 5000;
const int ledChannel = 0;
const int resolution = 8;


void setup() {
// configure LED PWM functionalitites
  ledcSetup(ledChannel, freq, resolution);
  
  // attach the channel to the GPIO to be controlled
  ledcAttachPin(salida, ledChannel);

  pinMode(salida, OUTPUT);

  Serial.begin(9600);
  SerialBT.begin("RAFAB"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");
}

void loop() {
char dato =SerialBT.read();
switch(dato) {
  case 'A' :intensidad();
  break;
}
}
void intensidad(){
  delay(15);
  while (SerialBT.available()){
 char C   = SerialBT.read();
  readString += C;
  }
if (readString.length()>0){

  ledcWrite(ledChannel,(readString.toInt()));
  readString = "";
}

}