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Arduino-USB-HID-RetroJoystickAdapter
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@ -18,6 +18,8 @@ ATmega32u4 can be easily changed to act as keyboard and/or mouse too. With keybo
\* = 4 controllers supported with Multitap, doesn't need Joystick-library
If you use Linux and want to get more than 1 controller with Arduino, check "Linux and more than one controller with one Arduino".
## Short version
- Get ATmega32u4 Arduino board
- Connect joystick or gamepad to Arduino (in most situations soldering is required)
@ -87,6 +89,13 @@ Example of NES-controller wiring:
- If you got no errors, test in Windows with `Control Panel -> Game Controllers` or in Linux with `jstest /dev/input/js0`
### Linux and more than one controller with one Arduino
Linux usbhid-module doesn't support out of box multiple controllers with one USB without USB-hub-features (I'm not sure about this). You have to give parameter
quirks=0x2341:0x8036:0x40 to usbhid-module. Here is example what to do with RetrOrangePi 2.5.2:
0. Make backup of /boot/boot-retro.cmd and /boot/boot.scr
1. Edit /boot/boot-retro.cmd setenv bootargs -line and add usbhid.quirks=0x2341:0x8036:0x40 to kernel parameters.
2. sudo mkimage -C none -A arm -T script -d /boot/boot-retro.cmd /boot/boot.scr
### Code
Select your controller by commenting and uncommenting stuff from beginning of source code and give your IO-pin numbers.
Every one uses same button numbering, so if you make multiple adapters for different controllers, you have to teach buttons to emulator/game (or whole emulation system like RetroPie or RetrOrangePi) only once.