Iron man motorised faceplate electronics tutorial!!!

// IronMan Helmet: eye blink sequence_v1.0
// created by: xl97


//import servo lib
#include <Servo.h>

//servo object names
Servo myservo; // create servo object to control a servo
Servo myservo1;

const int buttonPin = 2; // the pin that the pushbutton is attached to
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button


// led control pins (need to be PWM enabled pins for fading)
const int leftEye =  6;  // the number of the left eye/pcb LEDs
const int rightEye =  3;  // the number of the right eye/pcb LEDs

unsigned long fadeDelay = .5; //speed of the eye 'fade'
unsigned long callDelay = 700; //length to wait to start eye flicker after face plate comes down
unsigned long blinkSpeed = 100; //delay between init blink on/off
unsigned long currentPWM = 0;
boolean isOpen = true;

#define S_IDLE 1
#define S_LEDON 2
#define S_WAITON 3
#define S_LEDOFF 4
#define S_WAITOFF 5
#define S_INITON 6
#define S_INITWAIT 7
#define S_BLINKON 8
#define S_SERVOUP 9
#define S_SERVODOWN 0
#define S_SERVOWAIT 10



//FSM init vars
static int state = S_IDLE; // initial state is 1, the "idle" state.
static unsigned long lastTime;  // To store the "current" time in for delays.


void setup() {
  // Set up serial port
  Serial.begin(9600);  
  //start it off
  //state = S_BLINKON; 
  Serial.print("INTIT STATE: ");
  Serial.println(state);

  myservo.attach(9); // attaches the servo on pin 9 to the servo object
  myservo1.attach(10); // attaches the servo on pin 10 to the servo object

  pinMode(buttonPin, INPUT); // initialize the button pin as a input
  digitalWrite(buttonPin, HIGH); //use interal pull up resistors
}

void loop() { 
  switch(state)
  {
  case S_IDLE:
    // We don't need to do anything here, waiting for a forced state change...like button press.
    //check mian button state
    buttonState = digitalRead(buttonPin);

    // compare buttonState to previous state  
    if (buttonState != lastButtonState) {
      //if button pressed/down
      if (buttonState == LOW){
        //ie: pressed   
        if(isOpen == true){
          Serial.print("CLOSING FACE PLATE: ");
          Serial.println(isOpen, DEC); 
          state = S_SERVODOWN;
        }
        else{
          Serial.print("OPENING FACE PLATE: ");
          Serial.println(isOpen, DEC); 
          //state = S_SERVOUP;
          state = S_LEDOFF;
        }
        isOpen = !isOpen;
      } 
      else{
        //went from ON/HIGH to LOW/OFF..ie: released
        //Serial.print("RELEASE: ");
        //Serial.println(isOpen, DEC); 
      } 
    }
    // save the current state for next loop
    lastButtonState = buttonState;
    break;

  case S_BLINKON:
    Serial.println("init blink.........");   
    //do blink routine here
    //one blink
    analogWrite(leftEye, 155);
    analogWrite(rightEye, 155);
    delay(blinkSpeed);
    analogWrite(leftEye, 0);
    analogWrite(rightEye, 0);
    delay(10);
    //two blinks
    /*
    analogWrite(leftEye, 155);
     analogWrite(rightEye, 155);
     delay(blinkSpeed);
     analogWrite(leftEye, 0);
     analogWrite(rightEye, 0);
     delay(10);
     */
    state = S_LEDON;    
    break;

  case S_LEDON:
    Serial.println("increase........");    
    lastTime = millis();  // Remember the current time
    analogWrite(leftEye, currentPWM);
    analogWrite(rightEye, currentPWM);
    state = S_WAITON;  // Move to the next state
    break;

  case S_WAITON:
    // If one second has passed, then move on to the next state.
    if(millis() > (lastTime + fadeDelay)){
      if(currentPWM < 255){
        currentPWM += 5;
        state = S_LEDON;        
      }
      else{
        Serial.println("@ 255 done........");
        state = S_IDLE;
        //state = S_LEDOFF; //no auto turn off.. set to idle state
      }
    }
    break;

  case S_LEDOFF:
    Serial.println("........decrease");     
    lastTime = millis();  // Remember the current time
    analogWrite(leftEye, currentPWM);
    analogWrite(rightEye, currentPWM);
    state = S_WAITOFF;
    break;

  case S_WAITOFF:
    // If one second has passed, then move on to the next state.
    if(millis() > (lastTime + fadeDelay)){
      if(currentPWM > 0){  //change 0 to higher number to init face 'up' function sooner.
        currentPWM -= 5;
        state = S_LEDOFF;        
      }
      else{
        Serial.println("@ 0 done........");
        state = S_SERVOUP; //leds off..raise faceplate
      }
    }
    break; 

  case S_SERVOUP:
    Serial.println("servo up........."); 
    myservo.write(100);
    myservo1.write(100);
    state = S_IDLE;    
    break;

  case S_SERVODOWN:
    lastTime = millis();  // Remember the current time
    Serial.println("servo down.........");   
    myservo.write(0);
    myservo1.write(0);
    state = S_SERVOWAIT;    
    break;

  case S_SERVOWAIT:
    // If enough time has passed, call the eye flicker routine
    if(millis() > (lastTime + callDelay)){   
      Serial.println("start eye flicker routine");
      state = S_BLINKON;        
    }
    else{
      Serial.println("waiting........");
    }
    break;

  default:
    state = S_IDLE;
    break;
  } 
}

case S_SERVOUP:
    Serial.println("servo up........."); 
    myservo.write(100);
    myservo1.write(100);
    state = S_IDLE;    
    break;

  case S_SERVODOWN:
    lastTime = millis();  // Remember the current time
    Serial.println("servo down.........");   
    myservo.write(0);
    myservo1.write(0);
    state = S_SERVOWAIT;    
    break;

case S_SERVOUP:
    Serial.println("servo up........."); 
    myservo.write(100);
    myservo1.write(0);
    state = S_IDLE;    
    break;

  case S_SERVODOWN:
    lastTime = millis();  // Remember the current time
    Serial.println("servo down.........");   
    myservo.write(0);
    myservo1.write(100);
    state = S_SERVOWAIT;    
    break;