//  Week 15 - Networking and Communications
//  ATtiny44A board, 20 external Mhz clock - Electronics Design Week
//  Network node 1
//
//  Author: Jari Uusitalo
// Modified 30.4.19 
// by Michael O

#include <SoftwareSerial.h>
//#define txPin 1     // PA1 --> Pin 12 ATtiny
//#define rxPin 0     // PA0 --> Pin 13 ATtiny

SoftwareSerial mySerial(0, 1); // RX, TX

const char node = '1'; // network address
const int ledPin =  8; // the number of the LED pin

int incomingByte;   //from node

void setup() {
  mySerial.begin(9600);
  pinMode(ledPin, OUTPUT);
  pinMode(1, INPUT);
}

void loop() {
  // changed this from an if statement to while
  while(mySerial.available() > 0) {
    incomingByte = mySerial.read();
    
    if (incomingByte == node) { // node check
      digitalWrite(ledPin, HIGH);    
      pinMode(1, OUTPUT); // open line to write
      mySerial.print("node ");  
      mySerial.println(node);  //'1'
      mySerial.println(" is on"); 
      pinMode(1, INPUT); //tx goes back to input
      delay(200);
      digitalWrite(ledPin, LOW); 
      delay(1000);
      } else { 
         mySerial.println(" no input");    
    }
  }
}