#include <Arduino.h>

const int POT = 34; //ESP8266 -> A0
const int LED = 19;

void setup() {
   Serial.begin(115200);
   pinMode(LED, OUTPUT);
}

void loop() {
  if(Serial.available()) {
    String input = Serial.readStringUntil('\n');
    input.toLowerCase();
    if(input == "on") {
      Serial.println("LED PRENDIDO");
      digitalWrite(LED, HIGH);
    } else if(input == "off") {
      Serial.println("LED APAGADO");
      digitalWrite(LED, LOW);
    } else {
      Serial.println("Comando no reconocido");
    }
  }
  delay(10); // this speeds up the simulation
}