Arcade light gun, for the modern PC and retro arcade game emulators

They don't make light guns that work with LCD screens, so I wrote this to emulate the old arcade light guns for using with a modern PC.

Play all of those arcade shooters you grew up dumping quarters into!

Requirements:

• an Arduino pro micro
• a Gyroscope
• an Accelerometer

Optionals:

• Rotary encoder
• Analog thumbstick
• Switch
• Two push buttons

Features:

• Primary firing
• Secondary firing
• Scope aim
• Reload
• Character leaning (by tilting the gun)
• Adjustable sensitivity on each axis
• Movement (using a mini-joystick/thumbstick)
• Aim hold (press to adjust the gun without moving the crosshair)
• On/off switch

The code is complete and should work for anyone. Take careful note of the pin assignments and adjust accordingly.

There is mini-joystick support for movement and zoom (aiming down sights). I feel like it would be limiting if you have to use a secondary controller/keyboard for movement, but it's your call if you want to use it.

All options are just that, optional. If you don't add a joystick or encoder or buttons they'll just be ignored. No need to disable them in the code.

This code can easily be used as a simple hover-mouse if you wish, with zero required code changes.

Assignments:

• Trigger : Left mouse
• Alt : Middle mouse
• Reload : Presses 'r' key
• Encoder : increase/decrease gyro sensitivity on a per-axis basis (press encoder button to switch axes)
  • Encoder + Alt : Re-calibrate gyro
  • Encoder button :
    • (press) Switch between X and Y gyro sensitivity adjustment
    • (hold) Hold cursor - used to adjust gun aim
• Joystick : WASD keys
  • Joystick button : Right mouse
• Left/Right tilt : Presses PgUp/PgDn keys (designed to be used for leaning in games which support it)

My code is on Github: https://github.com/Domush/Arduino-Arcade-PC-light-gun

For non-commercial use ONLY.

If you wish to use this code for commercial purposes, you must contact me for permission.