Since Uno and Mega has no Serial, replace Serial with Console at Bridge Sample IDE code

  WiFi Status

 This sketch runs a script called "pretty-wifi-info.lua"
 installed on your Yún in folder /usr/bin.
 It prints information about the status of your wifi connection.

 It uses Serial to print, so you need to connect your Yún to your
 computer using a USB cable and select the appropriate port from
 the Port menu

 created  18 June 2013
 By Federico Fissore

 This example code is in the public domain.

 To see the Console, pick your Yún's name and IP address in the Port menu
 then open the Port Monitor. You can also see it by opening a terminal window
 and typing
 ssh root@ yourYunsName.local 'telnet localhost 6571'
 then pressing enter. When prompted for the password, enter it.

#include <Console.h>
#include <Process.h>

void setup() {
  //Serial.begin(9600);  // initialize serial communication
  //while (!Serial);     // do nothing until the serial monitor is opened
  //Serial.println("Starting bridge...\n");
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
  Bridge.begin();  // make contact with the linux processor
  digitalWrite(13, HIGH);  // Led on pin 13 turns on when the bridge is ready
  while (!Console) {
    ; // wait for Console port to connect.
  Console.println("Starting bridge...\n");
  delay(2000);  // wait 2 seconds

void loop() {
  Process wifiCheck;  // initialize a new process

  wifiCheck.runShellCommand("/usr/bin/pretty-wifi-info.lua");  // command you want to run

  // while there's any characters coming back from the
  // process, print them to the serial monitor:
  while (wifiCheck.available() > 0) {
    char c =;