Only official controllers are supported, no third-party or "fake" controllers.

The website supports the following official controllers:

• Sony DualShock 4
• Sony DualSense
• Sony DualSense Edge*
• PlayStation Virtual Reality 2

The finetuning and quick test menus are only accessible for DualSense and DualSense Edge.

*Saving calibration is locked by default on DualSense Edge joystick modules. A hardware mod is required to save the calibration permanently. The calibration is saved on the modules themselves, so you have to perform the mod twice: once for each module. You would need to bridge two points on the PCB with enamelled wire. There are multiple methods, I personally recommend using either of these two locations to solder the wire to. See images below. Ensure the wire is thin enough so that the shell is closed properly. Make sure you don't short the wire to ground through the letters near the bottom joint.

Images: Option 1, Option 2, Housing.

Behind the scenes, this website is the culmination of one year of dedicated effort in reverse-engineering DualShock controllers for fun/hobby from a random guy on the internet.

Through this research, it was discovered that there exist some undocumented commands on DualShock controllers that can be sent via USB and are used during factory assembly process. If these commands are sent, the controller starts the recalibration of analog sticks.

While the primary focus of this research wasn't initially centered on recalibration, it became apparent that a service offering this capability could greatly benefit numerous individuals. And thus, here we are.

Yes, only DualShock4 at the moment. This happened because I accidentally purchased some clones, spent time identifying the differences and added this functionality to prevent future deception.

Unfortunately, the clones cannot be calibrated anyway, because they only clone the behavior of a DualShock4 during normal gameplay, not all the undocumented functionalities.

If you want to extend this detection functionality to DualSense, please ship me a fake DualSense and you'll see it in few weeks.

Yes. Simply do another calibration, and click the green button to save permanently.

If you have not clicked the green button "Save changes permanently", then unplugging the controller will reset to the previously saved calibration. It is recommended you test your calibration before saving.

If you have saved the changes permanently, you can reset the changes only if you are using a DualSense or DualSense Edge. You can click on the grey button "Restore Calibration" to go back to one of the previous calibrations that was saved on the controller. Known issue: You may need to reboot your controller first in order for previous calibrations to show up.

These previous calibrations are stored locally in your browser's storage. Meaning you can only restore calibrations using the same computer and browser that you used to calibrate it with, and deleting the cache or using Incognito will make any previous calibration irrecoverable.

Images: Image 1, Image 2

Stickdrift is caused by a physical defect; namely dirt, worn potentiometer or in some cases a worn spring.

This software is not intended to fix stickdrift and will not fix stickdrift on its own if you already experience that.

In most cases, calibrating your joysticks that have prior drift issues may result in a worse and unpredictable calibration.

What the software will help with, is ensuring new joysticks will function properly after replacing the old broken joysticks that drift. This step involves opening up the controller and soldering new potentiometers or an entire new joystick.

No.

This issue happens because you have clicked "Done" immediately after starting a range calibration.

Please read the instructions.

You have to rotate the joysticks before you press "Done".

Make sure to touch the edges of the joystick frame and rotate slowly, preferably in each direction - clockwise and anti-clockwise.

Only after you have done that, you click on "Done".

The calibration is stored on each module individually. It is carried over if you place the modules in a different DualSense Edge. Likewise, if you place a different set of modules in your DualSense Edge, you will get a different calibration that is tied to those new modules.

Finetuning is only available for DualSense and DualSense Edge.

This video from V2.16 shows how to use the finetuning menu.

Not shown in the video: You can now also increase the range in each direction uniformly by using the cross in the top right and moving the slider up, which may speed up finetuning. Make sure to rotate the joystick first, otherwise the button cannot be pressed.

Images: Image 1

When calibrating, there is no risk. However, if your controller disconnects during the split second that you save a calibration, then you have a chance of bricking your controller. Make sure your battery has enough charge and is plugged into the controller, and the USB cable is securely connected. This prevents your controller from being bricked if the USB cable accidentally disconnects.

If you don't have a battery connected or the connected battery is empty, AND your cable disconnects during saving the calibration, then your controller has a high chance of being bricked.

We recommend a circularity between 7% and 9%. The reason for this is to mimic a stock controllers calibration. However, symmetrical overshoot is more important and if you need to deviate from this range to achieve better symmetry, that is fine too.

A sample test was done with 30 dualsense edge modules, and the results showed that the inner quartile range (IQR) is 8.3% and 9.0%, with an average of 8.6%. This goes to show that stock controllers by default have a relatively high range, and the rule of thumb is to follow factory calibration.

I maintain two separate to-do lists for this project, although the priority has yet to be established.

The first list is about enhancing support for DualShock4 and DualSense controllers:

• Implement calibration of L2/R2 triggers.
• Improve detection of clones, particularly beneficial for those seeking to purchase used controllers with assurance of authenticity.
• Add support for recalibrating IMUs.
• Additionally, explore the possibility of reviving non-functioning DualShock controllers (further discussion available on Discord for interested parties).

The second list contains new controllers I aim to support:

• DualShock 3
• XBox Controllers

Each of these tasks presents both immense interest and significant time investment. To provide context, supporting a new controller typically demands 6-12 months of full-time research, alongside a stroke of good fortune.

I'm glad to hear that you found this helpful! If you're interested in contributing, here are a few ways you can help me:

• Consider making a donation to support my late-night caffeine-fueled reverse-engineering efforts.
• Ship me a controller you would love to add (send me an email for organization).
• Translate this website in your language, to help more people like you!