RFID SWITCH ON LED & Dimmer control? Please Help.

I am making a prototype using a LED to represent a real light in the home but I can't get all my code to work together. If somebody could help me my Honours project will be complete. I want to scan a tag, tag switches on LED, MAX slider controls brightness of led. I have them all working individually but not together.

1.First I will show you the Arduino code for the RFID Reader.
2.Then Max patch for RFID Tag Reader

3.The Arduino code to switch on LED
4.The Max patch to switch on LED

5.The Arduino Code for the Led dimmer
6.The Max patch for the dimmer.

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1.RFID code for Arduino: (http://hcgilje.wordpress.com/resources/rfid_id12_tagreader/)
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/* RFID ID12
*/
char val = 0; // variable to store the data from the serial port
void setup() {
Serial.begin(9600); // connect to the serial port
}
void loop () {
// read the serial port
if(Serial.available() > 0) {
val = Serial.read();
Serial.write(val);
}
}

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2.MAX Patch RFID Tag Reader:
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copy and paste into maxmsp. You might want to clear the menu before adding your own tags:

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3.Arduino Code to switch on LED:
(https://cycling74.com/forums/arduino-uno-max)
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int maxData = 0;
void setup()
{
Serial.begin(9600);
pinMode((9), OUTPUT);
}

void loop()
{
while(Serial.available() > 0) {
maxData = Serial.read();
}

if(maxData == 1)digitalWrite(9, HIGH); // turn led on

}

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4.The Max Patch for turn on LED:
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5.The Arduino Code for the Led dimmer (http://arduino.cc/en/Tutorial/Dimmer)
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const int ledPin = 9; // the pin that the LED is attached to

void setup()
{
// initialize the serial communication:
Serial.begin(9600);
// initialize the ledPin as an output:
pinMode(ledPin, OUTPUT);
}

void loop() {
byte brightness;

// check if data has been sent from the computer:
if (Serial.available()) {
// read the most recent byte (which will be from 0 to 255):
brightness = Serial.read();
// set the brightness of the LED:
analogWrite(ledPin, brightness);
}
}

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6.The Max patch for the dimmer.
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