pen part

These codes control the servo motor to raise or lower the pen when I press different buttons

basic.forever(function () { 

  if (input.buttonIsPressed(Button.A)) {
      wuKong.setServoSpeed(wuKong.ServoList.S0, 20)
  } else {
      wuKong.setServoSpeed(wuKong.ServoList.S0, -100)
  }

})