Arduino dimmer guidance

please point me in the right direction. Modified Hek’s leddimmable arduino sketch to dim pins 3 and 4 but when you change one the other dimmer changes as well, what am I missing? Thank You
#define VSN “DimmableLED 2.0”

#include <Sensor.h>
#include <SPI.h>
#include <EEPROM.h>
#include <RF24.h>

#define LED_PIN 3 // Arduino pin attached to MOSFET Gate pin
#define LED_PIN 4 // Arduino pin attached to MOSFET Gate pin
#define FADE_DELAY 10 // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)

// Set RADIO_ID to something unique in your sensor network (1-254)
// or set to AUTO if you want gw to assign a RADIO_ID for you.
#define RADIO_ID AUTO

Sensor gw(9,10);

static int currentLevel = 0; // Current dim level…

// Function prototypes
void setDimmableLEDState( message_s message );
void fadeToLevel( int toLevel );

/***

  • Dimmable LED initialization method
    */
    void setup()
    {
    Serial.begin( BAUD_RATE ); // Used to write debug info
    Serial.println( VSN );

gw.begin( RADIO_ID );
gw.sendSketchInfo(“Dimmer”, “2.0”);

// Register the LED Dimmable Light with the gateway
gw.sendSensorPresentation( 0, S_DIMMER );
gw.sendSensorPresentation( 1, S_DIMMER );

// Pull the gateway’s current dim level - restore light level upon sendor node power-up
gw.getStatus( 0, V_DIMMER );
gw.getStatus( 1, V_DIMMER );

setDimmableLEDState( gw.getMessage() );
}

/***

  • Dimmable LED main processing loop
    */
    void loop()
    {
    if ( gw.messageAvailable() ) {
    message_s message = gw.getMessage();
    setDimmableLEDState( message );

    // Inform the gateway of the current DimmableLED’s SwitchPower1 and LoadLevelStatus value…
    gw.sendVariable( 0, V_LIGHT, currentLevel > 0 ? 1 : 0 );
    gw.sendVariable( 0, V_DIMMER, currentLevel );
    gw.sendVariable( 1, V_LIGHT, currentLevel > 0 ? 1 : 0 );
    gw.sendVariable( 1, V_DIMMER, currentLevel );
    Serial.println( “—” );
    }
    }

void setDimmableLEDState( message_s message ) {
if (message.header.type == V_LIGHT || message.header.type == V_DIMMER) {

//  Retrieve the power or dim level from the incoming request message
int requestedLevel = atoi( message.data );

// Adjust incoming level if this is a V_LIGHT variable update [0 == off, 1 == on]
requestedLevel *= ( message.header.type == V_LIGHT ? 100 : 1 );

// Clip incoming level to valid range of 0 to 100
requestedLevel = requestedLevel > 100 ? 100 : requestedLevel;
requestedLevel = requestedLevel < 0   ? 0   : requestedLevel;

Serial.print( "Changing level to " );
Serial.print( requestedLevel );
Serial.print( ", from " ); 
Serial.println( currentLevel );

fadeToLevel( requestedLevel );
}

}

/***

  • This method provides a graceful fade up/down effect
    */
    void fadeToLevel( int toLevel ) {

int delta = ( toLevel - currentLevel ) < 0 ? -1 : 1;

while ( currentLevel != toLevel ) {
currentLevel += delta;
analogWrite( LED_PIN, (int)(currentLevel / 100. * 255) );
delay( FADE_DELAY );
}
}

You need separate #defines or variables for multiple channels.

#define LED_PIN 3      // Arduino pin attached to MOSFET Gate pin
#define LED_PIN 4      // Arduino pin attached to MOSFET Gate pin

The above code effectively sets LED_PIN to 3 and then 4

See http://forum.micasaverde.com/index.php/topic,18103.msg165700.html#msg165700 as an example.