Calibration · 2026-03-16
What is a controller deadzone?
The raw stick and the value after a deadzone are both on the calibration page. The dot is raw. The square marker is what a game would keep.
What to check first
Inner deadzone hides drift and also hides the start of your aim. Outer scale is how early the stick counts as fully tilted. Start from the measured radius, not from a video. 0.10 here is 10 percent of full tilt.
- Radial uses distance from center.
- Axial deadzones X and Y separately, which many PC games do.
- A huge deadzone is not a repair.
Confirm the reading on the live tester before you buy parts or change firmware. The number on that page is what your browser actually receives.
A practical next step
Repeat the same test after each change and write the resting radius down. A fix that does not move that number did not fix the sensor. If the offset stays above about 0.12 with your hands off the sticks, plan a module replacement rather than another software pass. Model notes live in the controller library.
Frequently asked questions
Does this page change my controller?
No. GamepadTesters only reads the Gamepad API in your browser. Calibration writes, firmware updates, and stick swaps happen in the maker’s tool or at a repair bench.