Possible HUD?

[Lizard]

I was reading this thread on a larger LCD screen. http://www.vemssupport.com/forum/index.php/topic,315.0.html

Then I got to thinking, one could use one of those, but a black background and a green/yellow font, like this.
If we could reverse the font, and position it at the window it should give us a HUD.

I havent look at it just yet, but is this a possibility?

TIA

[Sprocket]

I asked and got zero response. I haven't bothered asking on the Wiki, as Nothing Seams to happen with suggestions there either, well, mine at least 

http://www.vemssupport.com/forum/index.php/topic,1404.0.html

[jrussell]

In order to do it, you would have to remap all the characters. Most LCDs only have RAM for 8 or so custom characters, so you would have to remap the custom characters on the fly before writing each, which would be computationally intensive and slow.

This sounds like a much better feature for a dedicated display with it's own processor rather than relying on the ECU to do it.

[Sprocket]

an excellent answer, that gives reason.

Thank you

[z0tya]

I have made an arduino based custom display and logger:

It's connected to main serial port, but a but difficult to reverse engineering the real time communication because of the firmware version little incompatibility.
Now I would like to make an interface and app for android devices...