//  Week 15 - Networking and Communications
//  Atmega328P board as Arduino/Genuino Uno
//  Network node 3
//
//  Author: Jari Uusitalo

#include <SoftwareSerial.h>
SoftwareSerial mySerial(1, 0); // RX, TX

const char node = '3'; // network addres
const int onboard_led1 = 3;

int incomingByte;

void setup() {
  mySerial.begin(9600);
  pinMode(onboard_led1, OUTPUT);
  pinMode(0, INPUT);
}

void loop() {
  if (mySerial.available() > 0) {
    digitalWrite(onboard_led1, HIGH);
    delay(200);
    digitalWrite(onboard_led1, LOW);
    delay(200);
    incomingByte = mySerial.read();
    if (incomingByte == node) {
      digitalWrite(onboard_led1, HIGH);    
      pinMode(0, OUTPUT);
      mySerial.print("node "); 
      mySerial.println(node); 
      pinMode(0, INPUT);
      delay(200);
      digitalWrite(onboard_led1, LOW);
    }
  }
}