#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 0); //RX, TX
const int boton = 3;
const int led = 1;
int buttonState = 0;
int value;

void setup() {
  mySerial.begin(9600);
  pinMode(led, OUTPUT);
  pinMode(boton, INPUT);
}

void loop() {
  value = mySerial.read();
  if (value == '1')
  {
    digitalWrite(led, LOW);
  }

  else if (value == '2')
  {
    digitalWrite(led, HIGH);
  }
}