/*
  Button

  Turns on and off a light emitting diode(LED) connected to digital pin 13,
  when pressing a pushbutton attached to pin 2.

  The circuit:
  - LED attached from pin 13 to ground
  - pushbutton attached to pin 2 from +5V
  - 10K resistor attached to pin 2 from ground

  - Note: on most Arduinos there is already an LED on the board
    attached to pin 13.

  created 2005
  by DojoDave <http://www.0j0.org>
  modified 30 Aug 2011
  by Tom Igoe

  This example code is in the public domain.

  http://www.arduino.cc/en/Tutorial/Button

  Modified by Salama for Fab Academy 2018, Network and communication week. Changed pins and add serial
*/

#include <SoftwareSerial.h>
    // the number of the pushbutton pin
const int ledPin7 =  7;            // the number of the GREEN LED
const int ledPin2 =  2;       // the number of the BLUE LED
SoftwareSerial myserial(5,6);       //Rx,Tx
            // variables will change:
char addr1 = '1';       // defining the address of the master 1 
char addr2 = '2';       // defining the address of the master 2

void setup() 
{
 
  pinMode(ledPin7, OUTPUT);      // initialize the LED pin as an output:
  pinMode(ledPin2, OUTPUT);

    myserial.begin(9600);     //Initialize serial communication at baud rate of 9600
}

void loop() {
  
 char val= myserial.read();     // read the serial port

  if (val==addr1)       // if the value from serial port equal to the address 1
 {
     digitalWrite(ledPin7, HIGH);   //Turn the LED
     delay(500);
      myserial.write('3');      // Send number 3 to master 1 
      delay(200);
      myserial.write('4');      // Send number 3 to master 2

    }
  else {
    digitalWrite(ledPin7,LOW);      // turn LED off: 
     digitalWrite(ledPin2,LOW);
  }
}