#include  
 /*
//arduino code for controling server that drives drawing machine 
 A0 is the servo
 A1 is the potentiometer for fine turning height
 
 */
Servo myservo;  // create servo object to control a servo 
            
int pos = 0;    // variable to store the servo position 
int minx = 0;
int trans = 0; //var for changing var from A1
int lim = 25;
void setup() { 
  //delay(5000);
  Serial.begin(9600);
  myservo.attach(9);       // attaches the servo on pin 9 to the servo object is pin9 ==A0?
  pos = myservo.read();    // if the servo is high, or low set servo position to 0
  if (pos > 0 || pos < 0){
  myservo.write(30); 
  }
} 

void loop() { 
int sensorValue = analogRead(A0); //resistors on PSU shouldnt change 
Serial.println(sensorValue);
int sv = analogRead(A1);      
    trans = (lim - (sv/40));    
if(sensorValue < 100){
  myservo.write(minx);
} else{
      myservo.write(trans);
      }
if(sensorValue > 1000){ // its done drawing, and out of range anyways
myservo.write(30);       // go back to neutral position
delay(300);
 }
}