#include  

Servo myServo;
int servoPin = 9;
int pos = 0;

float sensorWaarde = 0;
int sensorPin = A0;

void setup(){
  myServo.attach(servoPin);
}

void loop(){

 sensorWaarde = analogRead(sensorPin);
 sensorWaarde = (sensorWaarde/1023) * 180;

 myServo.write(sensorWaarde);
}