GunCon2 Calibration Guide - ZFEbHVUE/Batocera-CRT-Script GitHub Wiki

🎯 How to Calibrate Your GunCon2

Before you begin:

  • Make sure your GunCon2 lightgun is connected via USB.
  • Connect the Composite video input to your CRT.
  • Power on your display.

βœ… Start the Calibration Tool

  1. Launch the GunCon2 Calibration Tool from EmulationStation.
  2. Make sure the GunCon2 is connected and your display is ready.

Start from EmulationStation

πŸ“Œ Initial Calibration Screen

When the tool launches, you’ll see the initial GunCon2 calibration screen.
To begin:

  • Aim the GunCon2 at your screen.
  • Press the trigger once to start.

🎯 Aim at the Targets

After pulling the trigger, a circle will appear on the screen with a cross in the center.

  • Aim carefully at each of the four target circles.
  • Pull the trigger for each target one by one.
  • Try to align your GunCon2’s crosshair as precisely as possible with the target.

Take your time β€” a good calibration gives you better accuracy in games.

βœ… Finishing the Calibration

  • After you complete all four targets, press the A or B button on the GunCon2 to exit the calibration tool and save your settings.
  • πŸ”Œ Important: After calibrating, disconnect and reconnect the GunCon2’s USB cable to ensure the new calibration data is applied correctly.

βœ… When to Calibrate

You only need to run this calibration once per display setup, unless you:

  • Change your CRT geometry settings
  • Switch to a different monitor profile
  • Use a new display

🎯 Tips for Best Accuracy

  • Stand at your normal playing distance.
  • Hold the gun steady β€” use two hands if needed.
  • Repeat the process if your aim feels off.

πŸ” Expected Results

  • Even if you aim perfectly, the crosshair may not be 100% pixel-perfect.
  • This is normal β€” slight deviations happen because of how the GunCon2 reads the light and sync.
  • If needed, use the Micro-Calibration feature to fine-tune later.

πŸ”§ Need to Recalibrate?

Re-run the calibration if you:

  • Switch displays
  • Adjust screen geometry
  • Change your monitor profile

πŸ“š Related Guides

βœ… That’s it!
Once calibrated, enjoy your lightgun games β€” and revisit this guide if you ever need to fine-tune your aim.