Joystick-Controlled Football Goalkeeper

1#include <Servo.h>
2
3Servo myservo;
4int pos = 90;          // Home position
5int joyX;
6
7void setup() {
8  myservo.attach(9);
9  myservo.write(pos);
10}
11
12void loop() {
13  joyX = analogRead(A0);   // Read X-axis
14
15  // Move LEFT fast
16  if (joyX < 450) {
17    pos -= 6;               // Speed (increase value for more speed)
18    if (pos < 0) pos = 0;
19  }
20  // Move RIGHT fast
21  else if (joyX > 570) {
22    pos += 6;
23    if (pos > 180) pos = 180;
24  }
25  // Auto return to center when joystick released
26  else {
27    if (pos < 90) pos += 4;   // return speed
28    if (pos > 90) pos -= 4;
29  }
30
31  myservo.write(pos);
32  delay(5);   // lower delay = more speed & smooth movement
33}