/*  */#include <Servo.h> 
#define potPin A0
#define servo_out 11
Servo myServo;

int angle= 0;	
int potVal;
int prev_potVal = 0;

void setup() 
{
  myServo.attach(servo_out);	
  Serial.begin(9600);	
}


void loop() 
{
  potVal = analogRead(potPin);
  angle = map(potVal, 0, 1023, 0, 179);
  myServo.write(angle);
  
  if (potVal != prev_potVal)
  {
    Serial.print("potValue= ");
    Serial.print(potVal);
  	
    Serial.print("\tangle= ");
    Serial.println(angle);
    
  }
  prev_potVal = potVal; 
}