USB Mouse Tester - OTG Check

Connect any physical USB or wireless dongle mouse to your Android device using a USB OTG adapter and run comprehensive diagnostic tests.

Whether you are checking a new mouse, diagnosing double-click issues, measuring your sensor's polling rate (Hz), or testing scroll wheel accuracy, USB Mouse Tester gives you accurate, real-time hardware telemetry.

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KEY TESTING MODULES
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• BUTTON & CLICK TEST
- Test Left, Right, Middle (Scroll Click), and Side Buttons (Back / Forward).
- Real-time visual mouse diagram highlighting active button presses.
- Double-Click Benchmark: Detect faulty switches, unintended double-clicks, and measure interval timing (ms).
- Button Hold Stopwatch: Test switch contact stability and contact retention.

• POLLING RATE (Hz) BENCHMARK
- Measure real-time USB report updates in Hertz (Hz).
- Benchmark at 1-second, 5-second, or 10-second capture intervals.
- Live rate line chart displaying packet frequency fluctuations.
- Detailed statistics: Average Hz, Peak Hz, and Min/Max interval timing in milliseconds.

• SENSOR MOVEMENT & SPEED TEST
- Interactive 2D canvas with customizable fading motion trails.
- Real-time movement coordinates: instantaneous dX/dY and cumulative counts.
- Speedometer: Measures tracking speed in counts per second (CPS) and peak speed.
- Straight-line tracking deviation test to evaluate sensor jitter and smoothing.

• SCROLL WHEEL TEST
- Inspect vertical scroll step increments (+1 / -1).
- Animated rotating dial showing scroll direction and velocity.
- Individual Up/Down rotation counters and cumulative delta tracking.

• DPI ESTIMATOR & SENSOR CALIBRATION
- Calculate estimated sensor DPI (Dots Per Inch) across standardized physical distances (1 inch, 2 inches, 4 inches, 5 cm, or 10 cm).
- Accurate count recorder with guided start and stop triggers.

• GUIDED FULL MOUSE TEST WIZARD
- Step-by-step 8-stage automated test sequence.
- Verifies buttons, scroll wheel, tracking speed, and sensor stability in one workflow.
- Generates a complete diagnostic report you can save, copy to clipboard, or share.

• HARDWARE & USB DESCRIPTOR INSPECTION
- View Vendor ID (VID) and Product ID (PID) in hexadecimal format.
- Inspect USB Device Class, Subclass, Protocol, and Interface Descriptors.
- Review endpoint packet sizes and transfer configurations.

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ADDITIONAL FEATURES
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✓ Test History: Review past benchmark scores and diagnostic reports anytime.
✓ Technical Event Monitor: View raw Android input events and motion timestamps.
✓ Dark & Light Themes: Clean, high-contrast interface designed for quick readability.
✓ Privacy Focused: No account registration required. Diagnostics run entirely on-device.

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HARDWARE REQUIREMENTS
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1. An Android phone or tablet with USB Host (OTG) support.
2. A compatible USB OTG adapter (USB-C or Micro-USB to USB-A).
3. A wired USB mouse or a 2.4 GHz wireless mouse connected via its USB wireless receiver dongle.