int a=180;
int b=50;
int c=0;
void setup()
{
  TCCR5A = 0;           // Init Timer1A
  TCCR5B = 0;           // Init Timer1B
  TCCR5B |= B00000111;  // External Clock on T1 Pin (RISING)
  TCNT5 = 0;
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
 
  TCCR2A = _BV(COM2A1) | _BV(COM2B1) | _BV(WGM21) | _BV(WGM20);
  TCCR2B = _BV(CS22);
  //TCCR2B |= (1 << CS12) | (1 << CS10);
  //TCCR2B = 0x05;
  OCR2A = 0;
  OCR2B = b;
  
  
  TCCR4B = 0;
  TCCR4A = 0;

  // Set the clock prescale to 1
  TCCR4B |= (1<<CS10);

  // Set TOP to 3999.  
  // Frequency is 16 MHz / (prescale * (TOP+1)) == 4 kHz.
  ICR4 = 200;         

  // Start at 50% Duty Cycle
  OCR4A = 180;

  // Set mode to 14: FastPWM using ICR for TOP
  TCCR4A |= 1<<WGM41;
  TCCR4B |= (1<<WGM42) | (1<<WGM43);
          
  // Select non-inverting FastPWM  (higher numbers give higher duty cycle)
  TCCR4A |= (1<<COM4A1); 



 
  Serial.begin(9600);
}
 
void loop()
{

//for (int i=0; i<4000; i=i+200) 
   //OCR4A = i;  
   delay(1);

  b= analogRead(A0);
//c=digitalRead(6);
  //delay(5000);
  Serial.print("Counter Ticks = "); 
  Serial.println(TCNT2);//TCNT5
  //delay(250);  
  //a=a+20;
  //b=b+20;

   //OCR2A = a;
  OCR2B =b;
  //OCR2A =b;
  }