#include <IRremote.h>      
#include <Servo.h>
#define plus 0xFF18E7   
#define minus 0xFF4AB5  

int RECV_PIN = 3;       
Servo servo;
int val;                
bool cwRotation, ccwRotation;  

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); 
  servo.attach(9);     
}

void loop() 
{
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    irrecv.resume(); 

    if (results.value == plus)
    {
      cwRotation = !cwRotation;      
      ccwRotation = false;         
    }

    if (results.value == minus)
    {
      ccwRotation = !ccwRotation;   
      cwRotation = false;            
    }
  }
  if (cwRotation && (val != 175))  {
    val++;                         
  }
  if (ccwRotation && (val != 0))  {
    val--;                         
  }
  servo.write(val);
  delay(20);          
}