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Buddabing's LED controller
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Buddabing:

--- Quote from: JODY on April 19, 2005, 07:59:01 pm ---
--- Quote from: Buddabing on April 19, 2005, 04:09:24 pm ---
--- Quote from: KevSteele on April 19, 2005, 03:37:28 pm ---
BTW, I don't know if this has been asked yet, but will the board support the "keyboard lights" feature of MAME, i.e. the blinking player 1 and 2 lights? Or will we still need to wire those up to an IPAC?

Kevin

--- End quote ---

BuddaMAME will support this.

--- End quote ---

That raises my interest.  I'm finishing up a cab now and was planning to buy an Ipac just to control the lights for player 1 and 2.  Nothing more.  Already have other boards doing everything else.  ETA?

--- End quote ---

GameCab says May for the hardware. I say "when it's done" for the software.   :D

I think that MAME v0.96 will be out before too long and I plan to put the first LED support into it then. I've coded up the start LED part and I'm currently working on the other features which will be in the first release.

I'll probably retrofit BuddaMAME for purchasers of the GameCab LED controller, for selected key versions. (probably .56, .78, .92, maybe .36 or .37 something)

I've looked into AdvanceMAME and it is a pain to compile. I wish there was some zip files I could just download and it would work. So it is uncertain if there will be AdvanceBuddaMAME at this time.

MrSaLTy:
Like I was asking before.... Is there a possibility that you will release the source additions that you do for the LED board so others that use variants of mame can combine and compile their own?
gork:
I am very curious how you guys are designing the circuit. IMO It would be a little shortsighted to persue a parallel port based control design for a production device, especially when building an alternative interface is very easy.

The TLC5920 LED driver From TI has a 16 bit and 8 bit shift register internally so it can drive 128 LED's on its own, which isn't too bad for a $3 part. You could couple one (or more) of these with something like the Atmel AT90S and some simple power circuitry to build a 128-LED driver for an insanely reasonable parts cost. For small applications, power could be taken from the USB also, making using this for something like a 2p control panel even less expensive.

I have been looking at building a large LED matrix controller for a different project recently and this type of design is probably what my approach will be. If you guys are willing to share any details about your design approach, I would be interested.

BTW you could probably mark me down for one anyway, as no matter how you design it, if it works and you take the time to write support for it into MAME, then I'd probably be all about it :)
MikeAlex:
I want one!!!! :D :D :D

2,1b, 2b.
kenc3dan:
I'm in all the way...
$100 bucks or so for a 40 LED system with all the wiring.
Also I'd like the option for a 20 LED system at a lower price.

So...
1
1a+1b
2a

My only concern would be the software - regular updates to BuddhaMAME or better yet an external application would be nice.

OK, maybe I'd want one without the LEDs.  I've got 50 superbright babies now that I'm using to communicate with aliens. 
"Owww!  My retinas!"  :o
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