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My serial LCD for displaying directions

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maraxle:

--- Quote from: Aceldamor on April 08, 2004, 03:43:00 pm ---I actually have another question...

would it be possible to format the screen so that it shows the contol relevant to the position of the button?

for example the LCD Screen would show for my panel using Mortal Kombat:

Mortal Kombat

                    Not Used
High Punch                    High Kick
                      Block
Low Punch                    Low Kick

8 Way Joystick


--- End quote ---
My LCD could definitely do that.  I suppose it depends on the controller chip on the LCD.  I know it works on mine because I have tried indenting things.

maraxle:

--- Quote from: crashwg on April 08, 2004, 04:06:16 pm ---I have absolutly no knowledge of lcds and how they work, which will soon be evident with the following question...

What are the chances of rippin' the lcd out of an old gameboy and hooking that up to a computer in some way that might be useful?

I may be wrong on this, but LCDs need some kind of processor, right?  I'd imagine that this would be the biggest step in the whole process but doable I would suppose.  There are programable chips out there that would be capable of this aren't there?

Eh, I don't know.  Just thought I'd throw out my crazy idea in the hopes that maybe someone with more electrical/software skills would maybe persue this asinine thought that poped into my head...  :-\ :P

--- End quote ---

If you have assembly programming skills, specs on the screen, and a way to make a custom chip (EEPROM programmer?), you could do it.  Otherwise, I would just pick up a prefabricated one.

eli curtz:

--- Quote from: crashwg on April 08, 2004, 04:06:16 pm ---What are the chances of rippin' the lcd out of an old gameboy and hooking that up to a computer in some way that might be useful?

I may be wrong on this, but LCDs need some kind of processor, right?  I'd imagine that this would be the biggest step in the whole process but doable I would suppose.  There are programable chips out there that would be capable of this aren't there?

--- End quote ---

The lcds these guys are using have a built in chip to decode serial data, so you don't need to program the chip for them, just send it formatted data.

There is a huge GBA hobbyist programming scene (see http://www.gbadev.org for example) and that is what I would use for this. More expensive, but you get color and backlighting, and there are a number of USB cables you can buy or build for hooking it up.

crashwg:

--- Quote from: eli curtz on April 08, 2004, 09:05:32 pm ---There is a huge GBA hobbyist programming scene (see http://www.gbadev.org

--- End quote ---

I've posted on the site you suggested and I'll keep anyone updated if they would like to be.  I for one am very hopeful now that I've seen some of the things that have been done by these GBA hobbyists.  Also, the price of gba, even sp, isn't much more than some of the larger lcds available, so it seems like if this is plausable it will also be something worth persuing.

If someone acctually does this, before I do of course, make sure you give me credit...  ;)

Aceldamor:

--- Quote from: maraxle on April 08, 2004, 08:39:10 pm ---
--- Quote from: Aceldamor on April 08, 2004, 03:43:00 pm ---I actually have another question...

would it be possible to format the screen so that it shows the contol relevant to the position of the button?

for example the LCD Screen would show for my panel using Mortal Kombat:

Mortal Kombat

                    Not Used
High Punch                    High Kick
                      Block
Low Punch                    Low Kick

8 Way Joystick


--- End quote ---
My LCD could definitely do that.  I suppose it depends on the controller chip on the LCD.  I know it works on mine because I have tried indenting things.

--- End quote ---

Well, I'm buying 2 of the same ones you have...so mabye we can colaborate on getting that to work...though I really don't have any programming skills.

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