Step 9: Controls - Wiring the Buttons

Now for the wiring we need this:

- Electrical wire, the thin kind. Be sure to get at least two colours. One for ground and one for the rest.
- Some clips to put on the wire ends so we can connect them to the buttons easily.
- a wire cutter, stripper and a grip.
- maybe some ti rips or tape to keep things together.

The first thing we'll do is hook up all the buttons to the ground on a per player basis. Cut one of the
wires in pieces big enough to jump from button to button. Then take two wires and strip their ends, one end goes in the ground (gnd) pin on the I-Pac of player one (my ground wire is red). The other end together with an end of the other wire will be clamped in the clip with a grip. Strip another wire and do the same with the last wire and this one. Every time you clamp two wires together you slide the clip onto the ground pin of one of the micro switches of the buttons or joystick. It's the pin with the 90 degree angle. Continue until all the micros switches have been linked of player one.

Now cut the other colour wire in pieces long enough to go from every micro switch back to the I-Pac. Strip them and put a clamp on one end, the other end goes into the I-Pac in the corresponding pin.

Every micro switch has 3 pins, the big one with the 90 degree angle in it is ground. The other two are the ones transmitting the signal to the I-Pac. Now which one should you choose? One of the pins is constantly transmitting until the button is pressed. It then stops until the button is released. The other pin does the opposite which is exactly what we need. You can tell which is which by the markings near the pins. It either says NC or NO, which means Normally Closed and Normally Open respectively. You need the NO pin, because an electricity current can only flow in a closed circuit so we need to press the button to close the circuit. If it doesn't say NC or NO it might be represented by an open and a closed bridge.

A word of caution: when wiring the joysticks you actually wire it mirrored. If you would pull on the stick the upper micro switch would be pressed. If you push the stick the bottom one will be pressed. The same goes for left and right. If you've done it wrong you'll notice when you're playing, your character will do exactly the opposite of what you want him to do.

Now just plug the I-Pac in one of the computers USB ports and fire up the computer. It should all work and you will be able to play with your real arcade controller. The cabinet might be missing but we'll fix it.
If some buttons don't respond check another button that's further down the chain, if it works the ground wire is connected like is should be. You should then check the connection to the I-Pac. If it still doesn't work check the MAME controls, maybe the button isn't mapped jet this can be on a per game basis.
How the heck did you get Street Fighter III to work on MAME? Amazing tutorial.
street fighter III asia (NO CD) is the one that works if you use the latest mame version.
SFIII just worked with me, although i have 4 versions of which one only worked. Not the US one.
Can u please send me the plans at maecclub@googlemail.com ???
57th :P <br> <br> <br>
I wish I had a home, instead of a computer
would really like the plans neverknowingwhy@hotmail.co.uk thanks, awesome instructable
games didnt work,i used marvel vs capcom on windows.went to cmd and typed in C:\mame\roms\mvscu.zip and it says the directory is invalid...<br />
and are u sure, u have your file in that directory?<br />
I gotta admit it... I saw a Centipede arcade in my local arcade. It kinda made me sad that I got the high score easily, whicch meant that nobody played it, but it was easily the funnest and the most long lasting game in the arcade. I seriously think that arcades waste your money nowadays<br />
I'm making my own using an old pc running linux. My cabinet was drawn out, then blown up to size. Its based off the Ms. Pacman/ Galaga cabinet model. If anyone wants the plans, feel free to contact my gmail (tombocat9@gmail.com).<br /> <br /> BTW Awesome Instructable. :)<br />
You know, I&nbsp;love how Player Start buttons resemble bathroom signs.&nbsp;Makes sense. <br /> Great instructable!<br />
i would also like the plans internet_gamer3@msn.com
hay i live in australia so were do i go to get this stuff.?
For Windows users, you can make the MAME program start on startup by going to: Start; Control Panel, Performance and maintenance, Scheduled Tasks, Add Scheduled Task, click browse then find your frontend program and select the option "When my computer starts"
Nevermind I found it.
Could you refer me to the page on Ultimarc.com where you found the I-Pac VE, i've looked for it, but can't find it.
what year is the computer
lol there's a Orange Box in the picture :D
Awesome Instructable. I especially like how you point out Windows' limitations subtly throughout the tutorial. That's a really hot arcade you have now.
me tooo!!! loco_o.p.p@hotmail.com
if anyone is interested I have a way to make your own switches with litteraly some wood pr plastic and a soda can. and nice thing is they actually last longer and have better reaction time
oh yeah a link to one of my attempts before realising it was to big to move easily so I opted for a smaller version that is easy to move like 10 in the back seat of a car and one that actually feels like the bridge of the enterprise (video projector mounted on top for bridge main screen effect.<br/><br/>Gauntlet2 before being stored away <br/><br/><a rel="nofollow" href="http://extinction.site88.net/arcade1.html">http://extinction.site88.net/arcade1.html</a><br/><br/>(smaller version in the design stages as I need to come up with working LCD monitors for this design)<br/><br/><a rel="nofollow" href="http://extinction.site88.net/minicab.html">http://extinction.site88.net/minicab.html</a><br/>
you really should talk about i-pac alternatives such as the &quot;keyboard hack&quot; One possible solution to the interface issue is to cannibalize an old keyboard and turn it into an interface. You can &quot;hot wire&quot; a connection between your buttons and joysticks so that when the switches that comprise these components are switched, they &quot;press&quot; the appropriate key by closing the switch under the keys on the keyboard. This method is for the intrepid do-it-youselfer, and requires a good deal of patience. here are some sites to help: <a rel="nofollow" href="http://images.google.com/imgres?imgurl=http://www.aleax.com/personal/alias/arcade/kbd_controller_top_2.jpg&amp;imgrefurl=http://www.aleax.com/personal/alias/arcade/p2_wiring.php&amp;h=360&amp;w=500&amp;sz=37&amp;hl=en&amp;start=10&amp;sig2=2zXSYlF-kTCQTrsDMQWueA&amp;um=1&amp;tbnid=1qsw_bxVvBvnGM:&amp;tbnh=94&amp;tbnw=130&amp;ei=ea1ESMygLIe6iwGswZiWBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DN">http://images.google.com/imgres?imgurl=http://www.aleax.com/personal/alias/arcade/kbd_controller_top_2.jpg&amp;imgrefurl=http://www.aleax.com/personal/alias/arcade/p2_wiring.php&amp;h=360&amp;w=500&amp;sz=37&amp;hl=en&amp;start=10&amp;sig2=2zXSYlF-kTCQTrsDMQWueA&amp;um=1&amp;tbnid=1qsw_bxVvBvnGM:&amp;tbnh=94&amp;tbnw=130&amp;ei=ea1ESMygLIe6iwGswZiWBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DN</a> <a rel="nofollow" href="http://images.google.com/imgres?imgurl=http://www.mattkicks.com/blog/images/keyboard1.jpg&amp;imgrefurl=http://www.mattkicks.com/blog/2006_12_01_archive.html&amp;h=607&amp;w=698&amp;sz=105&amp;hl=en&amp;start=18&amp;sig2=27g5LzuQoUiazcbunrQJKg&amp;um=1&amp;tbnid=flzSlbceaeVzMM:&amp;tbnh=121&amp;tbnw=139&amp;ei=ea1ESMygLIe6iwGswZiWBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DNhttp://images.google.com/imgres?imgurl=http://www.hellspark.com/dm/mame/deprecated/keyboard/MVC-388F.JPG&amp;imgrefurl=http://www.hellspark.com/dm/mame/deprecated/keyboard/&amp;h=480&amp;w=640&amp;sz=74&amp;hl=en&amp;start=32&amp;sig2=mkOZ-8wUZizJ8Pbwf9OX2w&amp;um=1&amp;tbnid=v645HAy3ny0UKM:&amp;tbnh=103&amp;tbnw=137&amp;ei=L65ESLuKLYHIiAGu-KSQBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26start%3D18%26ndsp%3D18%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DN">http://images.google.com/imgres?imgurl=http://www.mattkicks.com/blog/images/keyboard1.jpg&amp;imgrefurl=http://www.mattkicks.com/blog/2006_12_01_archive.html&amp;h=607&amp;w=698&amp;sz=105&amp;hl=en&amp;start=18&amp;sig2=27g5LzuQoUiazcbunrQJKg&amp;um=1&amp;tbnid=flzSlbceaeVzMM:&amp;tbnh=121&amp;tbnw=139&amp;ei=ea1ESMygLIe6iwGswZiWBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DNhttp://images.google.com/imgres?imgurl=http://www.hellspark.com/dm/mame/deprecated/keyboard/MVC-388F.JPG&amp;imgrefurl=http://www.hellspark.com/dm/mame/deprecated/keyboard/&amp;h=480&amp;w=640&amp;sz=74&amp;hl=en&amp;start=32&amp;sig2=mkOZ-8wUZizJ8Pbwf9OX2w&amp;um=1&amp;tbnid=v645HAy3ny0UKM:&amp;tbnh=103&amp;tbnw=137&amp;ei=L65ESLuKLYHIiAGu-KSQBg&amp;prev=/images%3Fq%3Dmame%2Bkeyboard%2Bhack%26start%3D18%26ndsp%3D18%26um%3D1%26hl%3Den%26newwindow%3D1%26rlz%3D1B3GGGL_enUS276US276%26sa%3DN</a> <br/>
This is a common solution, and quite a simple one. However, keyboards are only built to register one key press at a time. This is quite important when you want to play games such as Street Fighter, which require multiple button combos.
yeah I personally used/ resorted to using a hacked game pad. check out my mame stuff / instructable...
help!! I have an old street fighter cabinet that I took apart piece by piece. (sides front, etc.) and the side are made out of fiberboard, and the fibrous board show up if painted. I was going to use a THICK black paint to cover it. just wondering if anyone can help? also I am running mame 32 with fighter type roms is there any way to find out button combos for each game? ex. button 1 - punch x3 + button 3 - kick = turbo kick. also its not a good idea to post you e-mail I could send you viagra e-mails and get paid for it!!! (well..... hypothetically that is) <br/>
1st off, try a little sandpaper maybe? Second google command.dat for you combo questions. If sandpaper dosent work try gluing some facing on it.
That?Old?Vaio?<br/><h2>are you j/k?that didnt seem right</h2>
I've always wanted to make my own arcade from scratch but I never had the time :( You could use a real coin instead of the coin button :P For example when you insert the coin you activate a switch and then coin falls in a special container than can have an opening to get the coin an reuse it :)
It makes me sad when people take cabinets that should have been restored and turn them into ugly mish mash mame cabinets running on an old computer they had sitting around. I dont think there is a single instructable involving arcade hardware that doesnt involve mame in some way or another.
I know what you mean, i'm all for restoring stuff so it can be used. that's why i saved all the parts for future use. Also you must understand the goal mame has which i think is a very good thing. More and more developers are giving out their old games as free roms.
thanks for al the comments, I'm still busy getting some screenshots for the software section so they'll be up in about a week.
I should upload some pics of my MAME cabinet. It's great fun!
I think I was a tad slow on this one. I was actually going to do this yesterday, but I didn't. :(
Wonderful, black hammerite paint on wood makes it look like metal. Its a great make. Wish I had the space for one. Well done

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