/*
  Serial BUS example with switching Tx mode
*/

#include <SoftwareSerial.h>
#define txPin 2 // PA1(MISO) transmit signal to the bridge
#define rxPin 3 // PA2(SCK) receives signal from bridge

SoftwareSerial mySerial(rxPin, txPin); // RX, TX

const char node = '2'; // network address
const int ledPin = 1; // the number of the LED pin
int incomingByte;

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

void loop() {
  if (mySerial.available() > 0) {
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(200);
    incomingByte = mySerial.read();
    
    if (incomingByte == node) {
      digitalWrite(ledPin, HIGH);
      pinMode(txPin, OUTPUT); // open line to write
      mySerial.print("node ");
      mySerial.println(node);
      pinMode(txPin, INPUT);
      delay(200);
      digitalWrite(ledPin, LOW);
    }
  }
}