Keyestudio 4DOF Manual page 256

Test Code 13:
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#include <PS2X_lib.h>
#include <Servo.h> // add the servo libraries
Servo myservo1; // create servo object to control a servo
Servo myservo2;
Servo myservo3;
Servo myservo4;
int pos1=80, pos2=60, pos3=130, pos4=0; // define the variable of 4 servo angle and assign the initial value( that is the boot posture
angle value)
PS2X ps2x; // create PS2 Controller Class
//right now, the library does NOT support hot pluggable controllers, meaning
//you must always either restart your Arduino after you conect the controller,
//or call config_gamepad(pins) again after connecting the controller.
int error = 0;
byte vibrate = 0;
int s1,s2,s3,s4;
int jiyi1[30]; //define four array, separately used to save the angle of 4 servos.
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