diff --git a/.gitignore b/.gitignore
index 5dac9f5..43baf86 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
.piolibdeps
.clang_complete
.gcc-flags.json
+src/serial
diff --git a/src/gmail.rb b/src/gmail.rb
index 0665c3a..8d61cdb 100644
--- a/src/gmail.rb
+++ b/src/gmail.rb
@@ -1,5 +1,23 @@
#!/bin/env ruby
+=begin
+Copyright 2018 Marvin Johanning
+This file is part of GmailNotifier.
+
+GmailNotifier is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GmailNotifier is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GmailNotifier. If not, see .
+=end
+
#Check if operating system being used it Linux-based
unless /linux/ =~ RUBY_PLATFORM then
puts "ERROR: Only Linux-based operating systems are currently supported"
@@ -69,7 +87,12 @@ stop_bits = 1
parity = SerialPort::NONE
#create a SerialPort object using each of the bits of information
-port = SerialPort.new(port_file, baud_rate, data_bits, stop_bits, parity)
+begin
+ port = SerialPort.new(port_file, baud_rate, data_bits, stop_bits, parity)
+rescue Errno::EBUSY
+ puts "ERROR: ".colorize(:red) + "The Arduino seems to be busy at the moment. This happens frequently whenever the Arduino has been plugged into a computer. Please wait a while and try again"
+ exit
+end
wait_time = 4
diff --git a/src/gmail_login_information.rb b/src/gmail_login_information.rb
index 052d761..f9a3dc5 100644
--- a/src/gmail_login_information.rb
+++ b/src/gmail_login_information.rb
@@ -1,2 +1,23 @@
+#!/bin/env ruby
+
+=begin
+Copyright 2018 Marvin Johanning
+This file is part of GmailNotifier.
+
+GmailNotifier is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GmailNotifier is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GmailNotifier. If not, see .
+=end
+
+#Please enter your Gmail username and password here
$gmail_username = "your_username_here"
-$gmail_password = "user_password_here"
+$gmail_password = "your_password_here"
diff --git a/src/main.cpp b/src/main.cpp
index d82f8dc..b71b9de 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,3 +1,21 @@
+/*
+Copyright 2018 Marvin Johanning
+This file is part of GmailNotifier.
+
+GmailNotifier is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GmailNotifier is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GmailNotifier. If not, see .
+*/
+
#include
#include
#include
diff --git a/src/serial b/src/serial
index 2eb4bec..6b098e2 100644
--- a/src/serial
+++ b/src/serial
@@ -1,7 +1,8 @@
/dev/video0 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
-/dev/input/event7 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
+/dev/input/event6 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
/dev/ttyACM2 - TOSHIBA_F5321gw_847A5C4419678500
/dev/ttyACM1 - TOSHIBA_F5321gw_847A5C4419678500
/dev/ttyACM0 - TOSHIBA_F5321gw_847A5C4419678500
-/dev/input/mouse2 - 1ea7_2.4G_Mouse
-/dev/input/event15 - 1ea7_2.4G_Mouse
+/dev/input/event5 - 1ea7_2.4G_Mouse
+/dev/input/mouse0 - 1ea7_2.4G_Mouse
+/dev/ttyACM3 - Arduino__www.arduino.cc__0043_75735323230351F09102
diff --git a/start b/start
index ebfaa85..430e6d7 100755
--- a/start
+++ b/start
@@ -1,3 +1,23 @@
#!/bin/env ruby
+=begin
+Copyright 2018 Marvin Johanning
+This file is part of GmailNotifier.
+
+GmailNotifier is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GmailNotifier is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GmailNotifier. If not, see .
+=end
+
+#The purpose of this file is to start the actual GmailNotifier located inside the src/ folder
+
load "#{File.dirname(__FILE__)}/src/gmail.rb"