/*
 * When the it recive 1  from the master it will turn OFF the LED if it recive 0 it will turn ON. 
 * Made by Eidha alrashdi
 * fabacadmy2018
 *20/6/2018
 * 
 * 
 */

#include<SoftwareSerial.h>// add serial library
int rxPin = 0;// the receiver will be in pin 0
int txPin = 1;// the sender will be in pin 1
char val = '1';// defining that val is equal to 1
SoftwareSerial myserial(rxPin, txPin);// defin the serial and indecate the ports.

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

  pinMode(5, OUTPUT);// pin 5 is the LED
}

void loop()
{
  char chr = myserial.read();// chr will equal whatever the serial read

  if (chr == val) {// here I'm saying if the serial read a valuy equal to what val is turn LED off and send that it receive. 
    digitalWrite(5, LOW);// turning the LED off
    myserial.write("attiny_recive");// slave 1 confirming reciving from master.
    delay(1000);// I made it 1 second to see the process.
  
  }
  else {
    digitalWrite(5, HIGH);// if it didnt receive 1 so it will turn ON LED
    
  }
}