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Game Controller diagnostics

Test what the browser can see. Know when it cannot.

Inspect buttons, sticks, triggers, center offset, drift and dead-zone behavior using the browser Gamepad API where available.

Run these first

Relevant live checks

Gamepad Controller TestTest browser-detected controller buttons and analog axes.
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Controller Stick Drift TestMeasure resting stick offset to identify possible stick drift.
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Controller Dead Zone TestInspect how far a stick moves before input appears.
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Controller Trigger TestInspect trigger minimum, maximum, and analog range.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Connect controller and run Gamepad Test

  2. 2

    Check stick center before changing game dead zones

  3. 3

    Compare USB and Bluetooth if both are supported

What DeviceOK/browser can help check
  • Read browser-exposed gamepad buttons and axes
  • Measure resting stick offset
  • Visualize trigger/stick ranges
What this browser page cannot prove
  • Calibrate every controller firmware
  • Read console-only diagnostics
  • Prove mechanical wear source from input values alone