//Original code made by Pablo Nuñez, available at https://hackmd.io/@ihhYfPp3TlKoBY_QfN2kZQ/S13ZXYK9U
//Translated and edited by Jonathan León


//This code is for the slave(s) board(s), connect it to a breadboard with wires on RX, 5V and GND
//on three different lines.
//The master board uses almost the same connections but using the TX pin instead.
//Connect the LED with the positive leg on the 13 pin and the negative leg on the next pin (GND).
#define BUTTON_PIN   8 //Button

char nodo = 'b'; //Name of this node

void setup() {
Serial.begin (9600); //Starts serial communication
pinMode(13,OUTPUT);  //Sets the LED as an input
}

void loop() {
if (Serial.read() == nodo){ //If the name is called:
  digitalWrite (13,HIGH); //Turns LED on
  delay(500);  //Shorter delay than master's
  Serial.println("Turno del B"); //For debugging purposes on serial monitor
  }
  else { //If the name has not been called:
    digitalWrite (13,LOW); //Turns LED off
    //delay (500);
  }
}