/* Mega multple serial test Receives from the main serial port, sends to the others. Receives from serial port 1, sends to the main serial (Serial 0). This example works only on the Arduino Mega The circuit: * Any serial device attached to Serial port 1 * Serial monitor open on Serial port 0: created 30 Dec. 2008 by Tom Igoe This example code is in the public domain. */ void setup() { // initialize both serial ports: Serial.begin(9600); Serial1.begin(9600); } void loop() { // read from port 1, send to port 0: if (Serial1.available()) { int inByte = Serial1.read(); Serial.print(inByte, BYTE); } }