Gerenciar cenários de iluminação com o Arduino

#include "IRremote.h"
int calibrationTime = 10; 
byte CellingLed = 9; /*   */ 
byte ledB = 6;  //  
byte pirDoor = 5; //  
byte pirMirror = 4; //   
IRrecv irrecv(2); //  IR  
byte dayNight = 7; //  ,  - / 
decode_results results;
byte irSignal = 0;
byte buttonstate; 
long unsigned int moveTime; //       
long unsigned int pause = 30000; // ,     
boolean movementDetected = true; // true -  
boolean moveFlag; //        
void setup ()
{
  irrecv.enableIRIn();
  Serial.begin(9600);
  pinMode(CellingLed,OUTPUT);
  pinMode(ledB,OUTPUT);
  digitalWrite(dayNight, HIGH); //      7
  pinMode(pirDoor,INPUT);
  pinMode(pirMirror,INPUT);
  digitalWrite(pirDoor, LOW);
  digitalWrite(pirMirror, LOW);
//   
  Serial.print("Calibrating");
  for(int i = 0; i < calibrationTime; i++)
    {
    Serial.print(".");
    delay(1000);
  }
  Serial.println(" done");
  Serial.println("SENSOR ACTIVE");
  delay(50);
}

void loop()
{
if ( irrecv.decode( &results)){
  delay(300);
  if (results.value == 0xFF3AC5) {irSignal = 0;}  /*       */
  if (results.value == 0xFFBA45) {irSignal = 1;}

  irrecv.resume();  
}
//    (/, IR /)
  byte DayNightSwitch = !digitalRead(dayNight);
  byte a;
  byte b;
    if (DayNightSwitch == LOW) {a=1;} else {a=0;}
    if (irSignal == 1)         {b=1;} else {b=0;}
    if (a==b) {buttonstate = 1;} 
    else      {buttonstate = 0;}
  byte pirstate;
    if (digitalRead(pirDoor) == HIGH || digitalRead(pirMirror) == HIGH)
        { pirstate = HIGH;}
    if (digitalRead(pirDoor) == LOW && digitalRead(pirMirror) == LOW)
        { pirstate = LOW;}


//  
if(pirstate == HIGH && buttonstate == 0 )
{
 if(movementDetected)
 {
  movementDetected = false;
  Serial.println("Motion detected");
  delay(50); 
  }
  moveFlag = true;
  analogWrite(ledB,240);//   
  digitalWrite(CellingLed, LOW);
}
if(pirstate == LOW & buttonstate == 0 )
{
  if(moveFlag)
  {
    moveTime = millis();
    moveFlag = false;
    }
  if(!movementDetected && millis() - moveTime > pause )
  {
    movementDetected = true;
    Serial.println("Motion finished");
    delay(50);    
    analogWrite(ledB,255);
    }  
}
//   
if (pirstate == HIGH && buttonstate == 1 )
{
 
 if(movementDetected)
 {
   movementDetected = false;
   Serial.println("Motion detected");
   delay(50); 
  }
  moveFlag = true;
  digitalWrite(CellingLed,HIGH);
  analogWrite(ledB,255);
}
if (pirstate == LOW && buttonstate == 1 )
{
  if(moveFlag)
  {
    moveTime = millis();
    moveFlag = false;
    }
  if(!movementDetected && millis() - moveTime > pause )
  {
    movementDetected = true;
    Serial.println("Motion finished");
    delay(50);    
    digitalWrite(CellingLed,LOW);
    } 
}

}