Keyestudio 4DOF Manual page 160

myservo2.write(pos2);
myservo3.write(pos3);
myservo4.write(pos4);
delay(1500);
pinMode(right_key, INPUT);
pinMode(left_key, INPUT);
Serial.begin(9600); // set the baud rate to 9600
}
void loop()
{
myservo1.attach(A1); // set the control pin of servo 1 to A1
myservo2.attach(A0); // set the control pin of servo 2 to A0
myservo3.attach(6); //set the control pin of servo 3 to D6
myservo4.attach(9); //set the control pin of servo 4 to D9
x1 = analogRead(right_X); // read the right X value
y1 = analogRead(right_Y); // read the right Y value
z1 = digitalRead(right_key); //// read the right key Z value
x2 = analogRead(left_X); // read the left X value
y2 = analogRead(left_Y); //read the left Y value
z2 = digitalRead(left_key); //read the left key Z value
//delay(5); // reduce the speed overall
// set the right/left key to INPUT
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