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Re: lcd screen in a GameBoy

From: Charles J Knight <>
Date: Thu, 4 Nov 1999 21:43:13 -0600

> Hi, I'm verry new to wearable computers. I don't even have one. But I 
> hope to get the funds soon to build my own. Now I have a question 
> for all of you. Has any one ever thought of using the LCD screen out 
> of a game boy, the little hand held game systems produced by 
> nintendo? the dimentions of the screen are 1-3/4" x 2". and the new 
> color gameboys have a colored lcd screen. My gameboy will run for 
> quite along time on 2 AA batteries so I asume the power drain is 
> negligble. It may be hard as hell to hack the screen to display 
> video input but.....

As I understand it, the GameBoy is based on the Z80, which means
it has a general purpose processor.  There is an RS232 serial hack
for it, as well as a terminal emulator.  The GameBoy has been well
hacked...do a web search and you'll come up with a LOT of information
about it and its hardware, and a LOT of homebrewed software as well.

Shouldn't be too hard to hook it up as a serial text display -- graphics
would be the next logical step, and since it's designed as a graphical
display system...shouldn't be too bad.

     -- Chuck Knight
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