Hacking VGA lines with an Arduino

[Minifig666]

Tune!

I think you may have just resolved my VGA woes, hijack the signals from something else. PICAXE VGA here I come! (And yes, PICAXE is far superior to Arduino in most respects)

[Switch620]

Yay seizures!

[Nuclear793]

i like the beat

[wilfeatscheese]

i bet you could build a pc around an arduino and get it running a 64bit os ... there is a challenge for you !!!!!!!!!!!

[1161858]

cool but your gonna give someone a seasior (sorry for the horrible spelling but you get my point like a stroke)

[MLAOTNMCC]

cyberpunk

[jlaroche0]

What code are you using on the Arduino for this output? I have built this same device and am having difficulty getting more interesting output from my sound input. I managed to put together some delay features, but nothing too extraordinary. Any coding help would be appreciated.

[THEtechknight]

this is what i called BETA LOOOOP.

[TimLenhartTech]

OH GOD

SEIZURE!

[S2KFTW]

Hey, kinda cool! Nice job.

[MonkeyFCoconut]

Very cool!

[toranamunter]

guru meditation error :-)

[Ratznium]

The modern answer to those C64 boot loaders...

[ibrebel]

woah seizure much

[Soulsgod]

looks like my comp when it has a hdd crash

[awesome3165]

I think I just had a seizure.

[ironchimpo]

yep seizure coming. very niiice

[smartpartzzkidd]

strap your head on that thing and you could give someone an embolism

[BlkSerialKilla]

I like the song, what is it's name?

[kotep777]

yo would you consider a commission on a box of your work?

like a device?

just puttin it out there....

T

[fogglee]

thats scary

[dinmagic]

What can't you do with Arduino?

[graymalkin1234]

sudo makemeasandwich

[caqtv]

I haven't managed to make it digest anything yet.

[someguynamedpie]

Who knows?

[proaking25]

@dinmagic Play games on it.

[Ahle2]

Nice.

I have made a PAL video generator with the awesome Parallax Propeller. It is possible to output a VGA signal at 1024x768 60hz using only one core out of eight possible.

Next step is to make some kind of raycasting engine. Maybe i will make a video of it running.

[0xFFender]

OMG! I have been watching your vids, and now i think that if I do not buy one of these magical Arduino boards, I may be forced to be immortally uncool. Sw33t line haxing, and perfect sync, great job! Also, where can these boards be bought?

[littlescale]

Arduino-related stuff can be purchased from littlebirdelectronics, based in Sydney. I buy my Freeduino stuff from Wulfden.

[AndrewFaulds]

you can buy it from sparkfun[dot]com if your in us they call it "Arduino USB Board".

In uk go to cool components

[masstapro]

Any chance your going to make, sell a dvd of your work?

[littlescale]

hmm i've never considered it. as in, i've literally never thought about it.

[masstapro]

Just wondering if you've ever done a longer piece. We have a special private VJ party for friends in Boston, MA once a year and I'm always looking for cool Visual Music animations to show off.

[esmusical]

Um, the VJ I work with would love to know how to do this. Could this be done with 2 2500 lumen projectors?

[littlescale]

Hey ES, Yeah, for sure. Check out the movie info for a link to my blog post about how i did this. It's just poking some VGA lines, whether that means of a monitor or a projector it shouldn't matter. It looks much better IRL than here on tube.

[esmusical]

How would you connect the Arduino to a projector?

[littlescale]

Splice up or make up a special sort of VGA cable, where pins 1, 2, 3, 4, 5, 6 are accessible to the Arduino. Sync lines still need to come from a VGA source (computer, for example).

[esmusical]

ok, now how would you approach this in a live application - me onstage with a laptop and live playing and the vj across the room on a laptop outputting to the projector. Would I be generating the sync from my laptop?

[littlescale]

You can generate the sync lines from any VGA source. So it doesn't have to be *your* computer. I made a Max/MSP patch which then takes MIDI data and sends it to the Arduino, which then creates the changes in the display. Make sense?

[littlescale]

Also -- the reason i made this in the first place is to be used in a live situation ;-)

[esmusical]

well, i'm going to want to sync the changes with the midi/audio generated by my laptop on the stage - so it would go laptop->arduino->projector...?

[littlescale]

Yes, I suppose so. It is a touch more complicated than that, because some of the VGA lines are going from the laptop straight to the VGA, and the laptop is connected to the Arduino via USB for example. But you get what i mean.

[esmusical]

do me a favor. can you sketch me out a wiring diagram? like a signal path for a live setup?

[littlescale]

ES, i have added a link in the video info for my blog post which gives more detail. Let me know if you are needing more info than this.

[omegaMuu]

yey!

[aggarotte]

Man it's so coooool!!!

I want an Arduino too!!

[littlescale]

after seeing your stuff, i think that you would totally be into it.

[RustyGonzo]

Veeery nice, man. Very nice.

[littlescale]

cheers.

[cappelnord]

looks great, and seems to be super cpu efficient ;)

[littlescale]

oh yes, but i am not generating the hsync or vsync! these signals are from a computer...

[TEMPHUiBIS]

-]. reminds me of loading a tape with commodore .[-

[littlescale]

ha, yeah. for sure.