레트로 파이 coin select GPIO로 연결하기

음.. 일단 설정파일은 찾았는데

저 숫자가 GPIO 기준인가?

$ sudo nano /etc/modprobe.d/mk_arcade_joystick_rpi.conf options mk_arcade_joystick_rpi map=5 gpio=2,3,4,17,9,10,22,27,11,24,23,25

[링크 : http://www.toad.es/setup/]

[링크 : https://www.elektor.com/downloads/dl/file/id/1592/manual_arcade_gamestation_kit.pdf]

[링크 : https://retropie.org.uk/docs/RetroArch-Configuration/]

[링크 : https://retropie.org.uk/docs/First-Installation/]

[링크 : http://www.rasplay.org/?p=23760]