Lockup at Boot: ---> Udp.begin(localPort);

Hi, I'm new to this forum and have a problem when trying to merge two network formats into one program. There are probably alot of improvements to be had here overall... but my main problem is when adding the second example sketch.. it wont boot.

I have both working separately, one is a web server that posts sensor info in a browser, and has one Digital Output controllable by a button. This uses these network protocols:
EthernetClient client;
EthernetServer server(80);

The other that I am trying to merge into this web server sketch is the Ardumote example code... each work fine separately, but merging the two causes the Mega2560 to lock up unless I comment out this line - the first line in Setup (): Udp.begin(localPort); //Ardumote Setup UDP socket on port defined earlier. THIS LOCKS UP UPON BOOT

Here's the code... there's allot I have a few things connected... all working ok though.

If there's anything you can recommend... please do! Thank you!

#define aref_voltage 3.3 // FOR temp36 temp sensor - we tie 3.3V to ARef and measure it with a multimeter!

#include <SPI.h>
#include <Ethernet.h>

// define settings for the SHT21 temp/hum sensor on pins 20(SDA) /21(SCL) (SCL and SDA)
#include <Wire.h>
#include <SHT2x.h>
// end of define for SHT21 sensor

/* Simple Counter

  • ——————
  • This is a simple counter that takes a digital input
  • http://www.toddholoubek.com/classes/pcomp/?page_id=58
    //int ledPin = 13; // choose the pin for the LED
    //int switchPin =2; // choose the input pin (for a pushbutton)
    int val = 0; // variable for reading the pin status
    int counter = 0;
    int currentState = 0;
    int previousState = 0;

// serial LCD setup Serial 2x16 LCD Backlit with speaker (1 wire connection) Microcontroller KickStarts | LEARN.PARALLAX.COM
const int TxPin = 6; // this is the pin the serial LCD data is connected too
#include <SoftwareSerial.h>
SoftwareSerial mySerial = SoftwareSerial(255, TxPin);
// end of serial LCD setup

const int temperaturePin = 0; //the analog pin the TMP36?s Vout (sense) pin is connected to //TMP36 Pin Variables - this is the Temp sensing chip, look like a transistor
int LightPin1 = A7; // MOVED TO A7 Pin A1 was taken and outputing 5v all the time -- Ambient Light Sensor Modern Device MD0505 uses a Sharp GA1A1S202WP chip - outputs 0-5v analog
int LightSensValue1 = 0; // // variable to store the value coming from the sensor - example is when adding calibration curve... 0v = 0, 5v = 1023.. use MAP to blend it in.

// Sainsmart Eithernet controller settings
byte mac[] = { 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; // Ethernet shield MAC address
byte ip[] = { 192, 168, 0, 19 }; // worked before I added this line
EthernetClient client;
EthernetServer server(80);

// Ardumote Setup Info
unsigned int localPort = 7777; // local port to listen on (set this the same as Port # on Ardumote Params Screen)
IPAddress iPhoneIP(192, 168, 0, 14); //Set the iPhone/iPod/iPad's IP address to send messages back to Ardumote...
unsigned int iPhonePort = 7777; //Set the Port # of the message table you configured in Ardumote (default is 7777)...
int LED_Pin = 7; //Set LED_Pin to Pin 7 - Place an LED on Pin 6 of your ethernet shield for testing this code
// buffers for receiving and sending data
char packBuff[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
EthernetUDP Udp;

int MotionLED = 9; // the number of the Sonic Sensor LED Motion output Pin
int LED1 = 22; // the number of the LED1 Pin

String readString = String(30); // sets the webserver strings
String state = String(3); // sets the webserver strings

//TMP36 Pin Variables - this is the Temp sensing chip, look like a transistor
int OutdoorT_Pin = A6; //the analog pin the TMP36's Vout (sense) pin is connected to this analog input 6
//the resolution is 10 mV / degree centigrade with a
//500 mV offset to allow for negative temperatures
int OutdoortempReading; // the analog reading from the sensor

// Define the number of samples to keep track of. The higher the number,
// the more the readings will be smoothed, but the slower the output will
// respond to the input. Using a constant rather than a normal variable lets
// use this value to determine the size of the readings array.

const int numReadings = 120; // the average sample length
int readings[numReadings]; // the readings from the analog input was int readings[numReadings];
int index = 0; // the index of the current reading
int total = 0; // the running total int total = 0;
int Outdoor_averageTemp = 0; // the average was int Outdoor_averageTemp = 0;


// END OF TMP36 Pin Variables

void setup()

Udp.begin(localPort); //Ardumote Setup UDP socket on port defined earlier. THIS LOCKS UP UPON BOOT

pinMode(LED_Pin,OUTPUT); //Designate pin 7 as Output Pin
pinMode (2,OUTPUT);//attach pin 2 to vcc for Ultrasonic HC-SR04
pinMode (5,OUTPUT);//attach pin 5 to GND for Ultrasonic HC-SR04

Serial.begin(9600); //Start Serial terminal

// TEMP36 Temp sensor SMOOTHING
// initialize all the readings to 0:
for (int thisReading = 0; thisReading < numReadings; thisReading++)
readings[thisReading] = 0;

// for the LED1 output control from webpage
pinMode(LED1, OUTPUT);
state = "OFF";

// start the serial SHT21 digital temp/hum sensor on pins 20 + 21
Wire.begin(); //brings in the SHT21

Serial.print("RESET "); // I (DAN) added this to show RESET on the serial logger when the RESET button is pushed, or when the SERIAL logger is run.

// beginning of Serial 2x16 LCD Backlit with speaker (1 wire connection) Microcontroller KickStarts | LEARN.PARALLAX.COM
mySerial.begin(9600); // anything with "mySerial" is Dans Serial LCD
pinMode(TxPin, OUTPUT);
digitalWrite(TxPin, HIGH);
mySerial.write(12); // Clear Screen

mySerial.write(208); // sets the note length to 1/4 (208-214)
mySerial.write(231); // A tone (G+) (220-232)
mySerial.write(12); // Clear
mySerial.write(17); // Turn backlight on
delay(1); // Required delay
mySerial.print("BOOTING UP..."); // First line
mySerial.write(13); // Form feed
mySerial.print("Server v8b!"); // Second line

delay(1000); // Wait 1/4 second
mySerial.write(18); // Turn backlight off

mySerial.write(12); // Clear LCD

// end of serial LCD setup

//Serial.write(0xFE); //ATTN LCD

//Serial.write(0x01); //Clear LCD
mySerial.write(12); // Clear LCD (dans serial LCD)

//Serial.write(0x7C); //ATTN

// Serial.write(157); //Full Display Brightness
mySerial.write(17); // Turn backlight on

//Serial.write(0xFE); //Attn
//Serial.write(128); //Mv cursor to line 1, col 1 on LCD
delay(5); // Required delay

//delay(1000); // Do not f* with this line. It ensures that the LCD is ready to receive data.
Serial.println("Waiting for DHCP request..."); // print on serial monitor
mySerial.print("DHCP request..."); // First line
mySerial.write(13); // Form feed
delay(1000); // Wait 3 seconds - keeps LCD on to read it
mySerial.write(18); // Turn backlight off

if (Ethernet.begin(mac) == 0) {
mySerial.write(12); // Clear Screen
Serial.println("DHCP Address Failed - STOP"); // Print message and halt Arduino. We need an IP.
mySerial.print("DHCP Address Failed - STOP");

; //Endless loop.
server.begin(); // Start Web server.
Serial.println("Starting Web server.");
mySerial.print("Starting server");

mySerial.write(12); // Clear Screen

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