That is awesome! Many kudos to you~~
I am currently working on a little project using tiles on an arduino w/ one of those old nokia 5110 lcd's - I think i'll be able to adapt it to this really well! I'm excited
Cool, would love to see the results!
]]>Have been experimenting with some different video modes to make the most of the Arduino Micro's limited resources.
Here's an example of a text-mode game, using 8x8 characters gives 20x18 characters on the 160x144 LCD (this could easily be turned into a graphics tile mode as well by replacing the characters with tiles):
The great advantage of text-mode is that the screen buffer is only 360 bytes (20x18) as opposed to 2,880 bytes (160x144 / 8)!
I adapted the game from this source:
That is awesome! Many kudos to you~~
I am currently working on a little project using tiles on an arduino w/ one of those old nokia 5110 lcd's - I think i'll be able to adapt it to this really well! I'm excited 
Here's an example of a text-mode game, using 8x8 characters gives 20x18 characters on the 160x144 LCD (this could easily be turned into a graphics tile mode as well by replacing the characters with tiles):
The great advantage of text-mode is that the screen buffer is only 360 bytes (20x18) as opposed to 2,880 bytes (160x144 / 8)!
I adapted the game from this source:
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]]>]]>Wow, great work!
Thanks!
Another idea would be to simply solder the arduino into the board without the headers, I'm sure you've thought of that though.
Yep, the problem then is that the USB ports are too low to be accessed through the opening for the cartridge slot in the case - need to find a good middle ground!
Do you have more details of the actual functionality of this board? Why are two arduinos needed? How is it powered during operation?
Basically, the Arduino Micro is running modified Arduboy sketches, and the Arduino Nano is acting as an LCD controller for the GameBoy display. At the moment, the Arduinos are powered through their USB ports.
I go into a lot more detail in the thread on the Arduboy community:
http://community.arduboy.com/t/arduboy-classic/293
How hard would it be to power the unit off the 4 AA's the gameboy uses? And while you're at it, why not include an on/off switch where the original one went?
Wouldn't be hard at all, and I have found a supplier for a switch that fits. At this stage I am just happy to have a board with all of the connections fixed in place, and be able to move away from the breadboard and the worry of the rats nest of wires I was using coming loose!
Eventually, all of the components from the two Arduinos could be migrated over and everything included on the one board - just means more work and time and money! 
Another idea would be to simply solder the arduino into the board without the headers, I'm sure you've thought of that though.
Do you have more details of the actual functionality of this board? Why are two arduinos needed? How is it powered during operation?
How hard would it be to power the unit off the 4 AA's the gameboy uses? And while you're at it, why not include an on/off switch where the original one went?
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The one hitch is that the Nano is only just marginally too tall for the case, so I'll need to source slightly shorter female headers... or just make a little cut-out in the case!
Looks great man! You didn't need my help after all. Is that ribbon connector supposed to be off center like that?
Ha! Thanks - I still appreciate the effort, and was definitely a motivator to have someone showing interest!
Yes, Nintendo made the ribbon cable a little off center for some reason?
Do you have plans for a ground fill?
There are connections all over the place so not sure I'd have space available on one of the layers for a ground fill? Am planning to at least make the ground and power lines a little thicker though...
]]>I would try to bring that bottom up as close to the arduino micro as possible so you'll save a few bucks from doing it at OSH park.
Do you have plans for a ground fill?
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I am still learning the ropes in Eagle, but have managed to get as far as creating a couple of the custom parts needed, making all of the electrical connections, and a basic layout of where things should fit:
Now, I know there are a few Eagle 'gurus' here in the forum, and this is where I was hoping someone might be able to help out with the last push of routing signals and getting the PCB to match with the size and the mounting holes of the original GameBoy motherboard, as well as making sure all of the components are positioned correctly so that they avoid colliding with any of the mounting posts and plastic walls inside the shell. And getting the volume dial and ribbon cable connector to line up with their original positions!
Help?