Added project files

serial

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+/dev/video0 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
+/dev/input/event12 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
+/dev/input/mouse2 - 1ea7_2.4G_Mouse
+/dev/input/event15 - 1ea7_2.4G_Mouse
+/dev/ttyACM4 - Arduino__www.arduino.cc__0043_75735323230351F09102
+/dev/ttyACM2 - TOSHIBA_F5321gw_847A5C4419678500
+/dev/ttyACM1 - TOSHIBA_F5321gw_847A5C4419678500
+/dev/ttyACM0 - TOSHIBA_F5321gw_847A5C4419678500

src/detect_serial.sh

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+#!/bin/bash
+for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do
+    (
+        syspath="${sysdevpath%/dev}"
+        devname="$(udevadm info -q name -p $syspath)"
+        [[ "$devname" == "bus/"* ]] && continue
+        eval "$(udevadm info -q property --export -p $syspath)"
+        [[ -z "$ID_SERIAL" ]] && continue
+        echo "/dev/$devname - $ID_SERIAL"
+    )
+done

src/detectserial.sh

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+#!/bin/bash
+for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do
+    (
+        syspath="${sysdevpath%/dev}"
+        devname="$(udevadm info -q name -p $syspath)"
+        [[ "$devname" == "bus/"* ]] && continue
+        eval "$(udevadm info -q property --export -p $syspath)"
+        [[ -z "$ID_SERIAL" ]] && continue
+        echo "/dev/$devname - $ID_SERIAL"
+    )
+done

src/gmail.rb

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+require 'serialport'
+require 'gmail'
+require 'fileutils'
+puts File.dirname(__FILE__)
+#Start the bash file, read the file it creates and find out what port the Arduino is connected to
+system("bash #{File.dirname(__FILE__)}/detect_serial.sh > serial")
+File.open("#{File.dirname(__FILE__)}/serial").each_line do |line|
+   @serial_connection = line.slice(0..(line.index(' '))) if line.include?("Arduino")
+end
+
+#FileUtils.rm("#{File.dirname(__FILE__)}/src/serial")
+
+#Gmail username and password
+gmail = Gmail.connect("username", "password")
+
+#count the number of unread messages
+prev_unread = gmail.inbox.count(:unread)
+
+#Serial port of the Arduino
+puts "Arduino is connected to: #{@serial_connection}"
+port_file = @serial_connection.gsub(' ', '')
+
+#this must be same as the baud rate set on the Arduino
+#with Serial.begin
+baud_rate = 9600
+
+data_bits = 8
+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)
+
+wait_time = 4
+
+#for an infinite amount of time
+loop do
+  #get the number of unread messages in the inbox
+  unread = gmail.inbox.count(:unread)
+
+  #lets us know that we've checked the unread messages
+  puts "Checked unread."
+
+  #check if the number of unread messages has increased
+  if unread > prev_unread
+    #Write the subject of the last unread email to the serial port
+    port.write gmail.inbox.find(:unread).last.subject
+
+    #For debugging purposes
+    puts "Received email: \n" + gmail.inbox.find(:unread).last.subject
+  end
+
+  #reset the number of unread emails
+  prev_unread = unread
+
+  #wait before we make another request to the Gmail servers
+  sleep wait_time
+end

src/main.cpp

@@ -1,9 +1,58 @@
 #include <Arduino.h>
+#include <Wire.h>
+#include <LiquidCrystal.h>
+
+LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
+String incomingString = "";
+int buzzer = 2;
 
 void setup() {
-    // put your setup code here, to run once:
+  Serial.begin(9600);
+  lcd.begin(16, 2);
+  pinMode(buzzer, OUTPUT);
+}
+
+void notifingBeep() {
+  unsigned char i;
+  for(i=0;i<50;i++) {
+  digitalWrite(buzzer, HIGH);
+  delay(10);
+  digitalWrite(buzzer, LOW);
+  delay(10);
+  }
+}
+
+void got_email(String subject) {
+
+  //Initial two beeps to alert user to incoming email
+  notifingBeep();
+  delay(200);
+  notifingBeep();
+
+  lcd.setCursor(0, 0);
+  lcd.print("You've got mail!");
+  delay(5000);
+
+  int str_len = subject.length() + 1;
+  char char_array[str_len];
+  subject.toCharArray(char_array, str_len);
+  unsigned int i;
+
+  lcd.clear();
+  lcd.setCursor(16, 1);
+  lcd.autoscroll();
+  for (i = 0; i < sizeof(char_array) - 1; i++){
+    lcd.print(char_array[i]);
+    delay(500);
+  }
+
+  //Last beep to inform user of end of email
+  notifingBeep();
 }
 
 void loop() {
-    // put your main code here, to run repeatedly:
-}
+  if(Serial.available() > 0) {
+    incomingString = Serial.readString();
+    got_email(incomingString);
+  }
+}

src/serial

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+/dev/video0 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
+/dev/input/event12 - Chicony_Electronics_Co._Ltd._TOSHIBA_Web_Camera_-_HD_0x0001
+/dev/input/mouse2 - 1ea7_2.4G_Mouse
+/dev/input/event15 - 1ea7_2.4G_Mouse
+/dev/ttyACM4 - Arduino__www.arduino.cc__0043_75735323230351F09102
+/dev/ttyACM2 - TOSHIBA_F5321gw_847A5C4419678500
+/dev/ttyACM1 - TOSHIBA_F5321gw_847A5C4419678500
+/dev/ttyACM0 - TOSHIBA_F5321gw_847A5C4419678500

start

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+#!/bin/env ruby
+
+load "#{File.dirname(__FILE__)}/src/gmail.rb"