Correct me if I'm wrong but I just want to make sure I got this correct.  
The arduino connected to a USB port will give you 5V max output.

But if you connect a 9V powersource you can draw 9V from the Vin pin? All other pins will ofcourse have their original voltage.

What about the max current of 20 mA for each pin? Does this only cover the digital and analog IO pins? Can I draw more current from the 3.3, 5 and Vin pins?

Is it correct that I shouldn't connect anything else to the arduinos ground pins except those powersources I already draw from the arduino? In retrospect after writing this I realize that every power source should have a output and a ground so to make a working circuit.

Excellent! Just what I've been waiting for. I'll check it out right away.

Tjena Kalle,

Just as I was beginning to think I was all alone in Goteborg. Sort of ironic in a city full of engineers.

I'll send you a PM and we'll try to figure something out.

Thank you for that invite aswell. And since your gatherings are during weekend its far more likley that I will be able to attend.

 

Thank you for the invite. Seems like a nice little thing you got going there.

If I had the time I'd love to have something similar here on the west coast.

Just checking to see if there's any arduino tinkerers in or around Göteborg that might want to meet up and share ideas and knowledge with other fellow tinkerers.

Took me a while but here's the blogpost with pictures and video from Zombie Showdown with graphics.

Nice work!

It turned out to be quite fun aswell. I'd love to post this on my blog, so if you add your name to the top (how does "Graphics engine by Blammers sound to you? ;D ) and send me the full source code with comments (the one that didn't fit here). I'll put it up there. Or you could post it yourself as a comment on the original post.

Again, really nice work, I thought it would require alot more code when I first started thinking about it.

Zombie guitar hero. I like it!
 

Yeah, that sounds like it would work.
Maybe I'll look into it in the morning, now it's time for a different kind of z's.

Or you do it

Yeah, like a two row shoot-em-up.

On the thought of evolving the game I hope to get the scare/action part up even higher once I get the rumbler installed on my version.

What did you expect then? (Just a bit curious about the first thing that popped into your head when your read the title).

Also it was very hard to refrain from writing "Dead simple Zombe game ..."
 ;D

Here's a small project I did just to get some practice using an LCD I recently bought.

It's a extremely simple Zombie survival game. Check out the code, some pictures and a small video here.

Here's a thought:
What kind of results would you get if you pan the camera instead and keep the POV still? If you manage to do a really level pan you should get quite interesting pictures.

So I've finally taken the time to document my first Arduino project. You can find the whole story including circuit diagram, source code, pictures and videos here:
http://genericnerd.blogspot.com/2009/05/arduino-mood-light-controller.html.