GunCon2 Micro‐Calibrations Guide - ZFEbHVUE/Batocera-CRT-Script GitHub Wiki

GunCon2 Micro-Calibrations

In-Game Micro-Calibrations

Button C + D-pad left/right → Decrease x-min → Use this if your gun is off the left side of the screen.
Button C + D-pad up/down → Increase x-max → Use this if your gun is off the right side of the screen.

Issue with Micro-Calibrations

The GunCon2 micro-calibrations reset on reboot and vary across different resolutions. To ensure the calibrations persist, follow the steps below:

Step 1: Capture Calibration Values

SSH into your system and run the following command:
```
evtest
```
Select the device:
```
Namco GunCon 2
```

Look for the following event code and values:

    Event code 3 (ABS_RX)
      Value      0
      Min      135
      Max      735

Write down the Min and Max values:
- min = -m 135
- max = -M 735

Step 2: Edit the Calibration Script

Open the file /userdata/system/scripts/1_GunCon2.sh for editing.

Find the section for the emulator or core you are calibrating. For example, under Nintendo NES, locate the following line:

#if [ "$4" == "nestopia" ](/ZFEbHVUE/Batocera-CRT-Script/wiki/-"$4"-==-"nestopia"-); then evdev-joystick --e /dev/input/by-id/usb-0b9a_016a-event-mouse -m 122 -M 730 -a 3 -f 0; fi

Remove the # at the beginning of the line to uncomment it. Replace the existing -m and -M values with your calibration values:

if [ "$4" == "nestopia" ](/ZFEbHVUE/Batocera-CRT-Script/wiki/-"$4"-==-"nestopia"-); then evdev-joystick --e /dev/input/by-id/usb-0b9a_016a-event-mouse -m 135 -M 735 -a 3 -f 0; fi

Save the file.

Step 3: Apply the Calibration

The new calibration values will now be saved and automatically applied the next time you start the emulator.