ArPiCade - Raspberry Pi JAMMA Adapter - 4 Player
Product information "ArPiCade - Raspberry Pi JAMMA Adapter - 4 Player"
3 & 4 Player ARpiCADE — JAMMA Adapter for Raspberry Pi
Welcome! This is the first 3 or 4 Player Multi for dedicated JAMMA cabinets. It allows you to play your favorite 3- and 4-player arcade games in a single CGA tube monitor cab. If your tube monitor is dead or too costly to repair, you can also run it with an LCD flat screen.
Overview & Setup
The 3/4 Player ARpiCADE plugs directly into your JAMMA wiring harness. No wall-wart power adapters needed—power comes straight from your JAMMA switcher. It’s open source, so you can customize game lists, front ends, resolutions, and more.
Key Features
- No modification required (optional kick harness available).
- Supports normal JAMMA or 6 buttons on JAMMA via DIP switches.
- RGBS video out or VGA for higher resolutions.
- Amplified mono or line-level stereo audio options.
Controls & Harnesses
Players 1 & 2 are on the JAMMA harness (limited to 2–3 buttons). For additional buttons or players:
- 6-pin harness: Adds buttons 4, 5, 6 for P1/P2 (e.g. Street Fighter).
- 9-pin harness: Adds P3 and P4 controls (Konami cabs/images use 2 harnesses).
Some cabinets may require drilling new control panel holes if buttons aren’t physically present. Pre-made plug-and-play harnesses are available in our store.
Requirements
- Raspberry Pi 3B or 3B+ (our images support only these models).
- ARpiCADE JAMMA adapter (3/4 Player edition).
- JAMMA-compliant arcade cabinet.
Attention / Warnings
- Our images support RPi 3B/3B+ only. Pi4 and Pi5 requires separate images. This can be found on the Forums.
- RPi 3B+ not included. Must provide your own or purchase separately.
- CAUTION: When installing the 4-Player adapter PCB, ensure pins are aligned properly or you may burn out your Pi. There should be a visible small gap showing pin alignment.
Game List Image Downloads
Support & Forums
3 & 4 Player ARpiCADE — FAQ
Which Raspberry Pi models are supported?
Our images work only on Raspberry Pi 3B/3B+. ARpiCADE itself can run on Pi 4, but our images do not support Pi 4.Is a Raspberry Pi included?
No — the Pi 3B/3B+ must be provided or purchased separately.How are Player 3 and Player 4 controls connected?
Via optional 9-pin harnesses (Konami images require two).How do I enable extra buttons for fighting games?
Use the 6-pin harness to add buttons 4–6 for Player 1 & 2.Do I need to modify my cabinet?
No cab mods are required, unless you need to add extra control panel buttons.What precautions should I take during install?
Ensure adapter pins are aligned properly before powering on. Misalignment can damage your Pi.Are ARpiCADE images returnable?
No, images are not returnable, but exchanges are available if issues occur.Where can I ask technical questions?
Visit the ARpiCADE Forums.Login
1 review
October 17, 2025 6:12 PM
Perfect to customize my game
Love the forums that you can ask questions about customizing my Simpsons arcade game. Great and easy solution for a Pi
Accessories
Check out PDF for all Konami 4 player game kick harness pinouts - Pinout PDF DownloadThese are approximately 3 foot long to give you the length needed Each wire has a .187 female quick disconnect on all player controls for attaching to the terminal on the microswitch AND enough ground connectors for your controls15 pin header connects to your pcbHeader is numbered for you to match what wire goes where on your control panel Wires will vary in color but numbers stay the same!This kick harness allows you to connect player 3 or player 4 buttons and joystickPLEASE NOTE - You will need 2 harnesses if you want to connect both P3 and P4 to your control panel
Able to be used with - The ArpicadeOther uses too! These are approximately 4 foot long to give you the length needed Each wire has a .187 female quick disconnect on all for attaching to the terminal on the microswitch (Not a cheap connector) 6 pin header connects to your pcb or Arpicade 1 and 2 player for buttons 4, 5 and 6
4 White PCB Feet 4 ScrewsWe recommend using these feet to make sure the PCB is secure.
Any Coin Mech Designed as a direct drop-in replacement for coin mechanisms from Happ, Coinco, Imonex, and others. Features Drop-in replacement for existing arcade coin mechs. Accepts quarters, 0.984″ tokens, and dimes (no adjustments required). Engineered to reduce coin jams. Includes four plastic mounting pegs; will not rust. Made in the USA. For home arcade use. Compatibility Tested on arcade games from Atari, Bally/Midway, Gottlieb, Stern, Taito, Williams, Sega, and more.
Easy CoinUp (E.C.U.) — Quarter-Style Coin-Up Switch It Just Makes Sense! We’ve all seen it: a loose switch dangling from the coin door, or a hole drilled in the cabinet just to add credits. Many games offer a Free Play mode, but some disable attract sounds or visuals—so passers-by never see or hear the game in action. Easy CoinUp fixes that. It’s a pushbutton that looks like a quarter, so everyone knows exactly what it does: add a credit. Installation is simple and causes no permanent damage beyond applying adhesive to the metal coin door. Installation Instructions (Quick & Easy) Peel the backing liner and apply the E.C.U. where you want it mounted. Wrap the “tail” around the coin door, pressing firmly so the adhesive bonds (industrial 3M 300LSE—once it sticks, it sticks). Peel the second liner and apply the “Quarter” overlay to the front of the switch. Solder two wires from the tail’s solder pads to the machine’s coin switch. The E.C.U. is a membrane SPST switch; your machine must expect a single circuit closure (typical for most arcade and pinball machines). Insulate the E.C.U. pins with electrical tape after soldering so they can’t touch grounded metal or other circuits. Note: Installation requires basic soldering. Tips & Tricks Thoroughly clean the mounting area; finish with rubbing alcohol and let it evaporate. Mount near the “Insert Coin” slots so players find it quickly. Avoid high-friction spots on the coin door; look for rubbed paint or scratches and choose a smoother area. If the conductive circuit in the tail is worn through, the switch will stop working—route and secure it thoughtfully. Keep out of reach of children—they may peel or try to swallow the parts.