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. (http://www.crystalfontz.com/phpthumb/phpThumb.php?id=1896&w=200)
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
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 :D
http://www.vemssupport.com/forum/index.php/topic,1404.0.html
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.
an excellent answer, that gives reason.
Thank you :)
I have made an arduino based custom display and logger:
(http://cosworth.hu/misc/vemsgauge.jpg)
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...