/*
 * When the it recive 1  from the master it will turn OFF the LED if it recive 0 it will turn ON. 
 * Originaly Made by Eidha alrashdi and edited 
 * fabacadmy2018
 *20/6/2018
 * Edited by Danny Vallejo fab academy 27/04/2019
 * This program causes when read the message "d" blink the led 3 times. There is a issue I had to connect tx with tx and rx with rx and work well.
 */
#include<SoftwareSerial.h>// add serial library
int rxPin = 1;// the receiver will be in pin 1
int txPin = 0;// the sender will be in pin 0
char val = 'd';// defining that val is equal to 1
int Loops = 0;
SoftwareSerial myserial(rxPin, txPin);// defin the serial and indecate the ports.

void setup() {
  myserial.begin(9600);

  pinMode(8, OUTPUT);// pin 8 is the LED
  
}

void loop()
{
  
  char chr = myserial.read();// chr equal whatever the serial read from the master
  
  if (chr == val) {// here I'm saying if the serial read a valuy equal to what val is, turn LED ON and send that it receive
  for (int x = 0; x < 3; x++) {
   digitalWrite(8, HIGH);   // set the LED on
   delay(500);              // wait for a second
   digitalWrite(8, LOW);    // set the LED off
   delay(500);              // wa
    }
  }
  
}