Bubble Machine Code

/*
Code by Tal Ofe - talofer99@hotmail.com

Made for the bubble machine

You can see it on YouTube
https://www.youtube.com/watch?v=tMIEiQsoe-E

*/


// servo library
#include <Servo.h>
// define needed infor for start and end point and pinout
#define STARTPOS 100
#define ENDPOS 35
#define MOTORDIR 8
#define MOTORPWM 10
#define MOTORDESIREPWM 255

Servo myservo;  // create servo object to control a servo


int pos = STARTPOS;    // variable to store the servo position

void setup() {
  //define pinout
  pinMode(MOTORDIR, OUTPUT);
  digitalWrite(MOTORDIR, LOW);
  pinMode(MOTORPWM, OUTPUT);
  digitalWrite(MOTORPWM, LOW);

  //servo
  myservo.attach(2);  // attaches the servo on pin 2 to the servo object
  myservo.write(pos);              // tell servo to go to position in variable 'pos'
  delay(15);
}

void loop() {


  // move the servo up
  for (pos = STARTPOS; pos >= ENDPOS; pos -= 1) {
    myservo.write(pos);
    delay(15);
  } //end for

  // start the fan motor
  setMotorPwm(MOTORDESIREPWM);

  // delay
  delay(1500);
  // set motor 0
  setMotorPwm(0);
  //delay
  delay(250);
  // move servo down
  for (pos = ENDPOS; pos <= STARTPOS; pos += 1) {
    // in steps of 1 degree
    myservo.write(pos);
    delay(15);
  } //end for
  // delay
  delay(250);

} //end loop


void setMotorPwm(byte pwm) {
  analogWrite(MOTORPWM, pwm);
} //end void