Looks like a lot of fun functionality!
My project is far away from something like this. Anyway, did you mount an aditional Lambda sensor yourself? Where did you bought it from (Conrad?)
yes, but the more you get into it, the more work it gets :-?
The Lambda sensor is the stock one, i just tapped a wire inside the ECU loom 
Maybe in future i will put a LM1 sensor inside, it has a 0-5V output and is a nice wideband type sensor.
The whole thing will change from the Arduino to the Boarduino, to shrink it so it fits nicer inside the radio slot 
im working on "BigFonts" becouse its a little hard to read the small numbers while driving fast :
2 Lines:
4 Lines:
just need to figure out how to do that :-[
any help is highly appreciated: LCD "Bigfont" Numbers over 2 or 4 lines
designer2k2
Very nice fonts!... I did a similar one for 3 lines. You can find the source code here: H I F I D U I N O: Arduino LCD Custom Fonts, Large Numbers
(Use the corresponding lcd commands for your LCD. I used the web4robot LCD and the corresponding library)
(I may borrow your designs)
A simple and cheap way to reduce clutter and glitches from surprise disconnects:
As it happens, this setup was made when I was testing the web4robot controller with various LCDs.
You can also put a brick on top of the "no sliding around" frame that overhangs the piece, and keeps it from bouncing out, like this.
Ran
Good job, i want do it ;D
glt, i will look into the code, looks promising
go ahead with the fonts, there is nothing special about them...
will make a 3 line font also, gives some space to print something else on the LCD, when im able to print BigFonts...
Ran Talbott, thats a perfect idea! 
had the problem quite often that it disconnects in the car...
And a new video, out of focus but its possible to see what happens :-/
new things:
- BigFont 4 Lines
- BigFont 2 Lines
- Scope mode
The Scope is cool, makes it much easier to see changes in values as with Numbers...
Its basically a vertical bar, and then scrolled through a array
hello i race go karts and would like to build something like this. I want head temp. rpm. and laptimer. could i also get a camra to see behind me becouse we cant have mirrors. Do you think all this is possiable and about how much will it cost. a mycron 4 costs about $400 so any cheaper would be better.
head temp and rpm is no problem, laptimer should also work, but it may not be so accurate.
The code from here may not be usable for time measurement, you need to modify it to work with some timers...
it can read 8 Thermocouples:
8 are a little to much for what i need, but with the Mux its easy to make
The Print:
(my first doublesided print, was a mess to get it aligned...)
All the Details + Shematics: GitHub - designer2k2/multidisplay: The MultiDisplay Project, An opensource datalogger, boost controller and display for cars
enjoy
i played a bit with the thermocouple readings:
(its in °C and Seconds, thats heating up a thermocouple with a lighter)
and a zoom into the peak:
its quite fast, around 30Hz when using only 2 channels. And surprisingly low at noise!
and my Boarduinos arrived, now i need to choose what to use:
i think i go for the USB Boarduino, ist small but still has the USB port directly on it.
So i fitted the board with it:
There is the RPM print now directly on it, so it has 194pins (from the 250 pin max in the free version from Target)
The proto from the RPM print also works:
now im working on getting the board ready for the first try to etch it, and then debugging it
the "SplitBox" design gets close to be finished: GitHub - designer2k2/multidisplay: The MultiDisplay Project, An opensource datalogger, boost controller and display for cars
it means all sensor data is collected in the engine bay and then brought into the passenger compartment where the arduino with the LCD and buttons sits to show the data
Hope to have some prints during the next weeks, so i can start testing the whole thing in my car
What program does everyone use to do this?
Thanks
Btw, project's just getting better and better. I'm keeping an eye on this topic...
Mowcius
what Programm you mean? for the Layouts? Im using Target (http://www.ibfriedrich.com/)
i think more common here is Eagle for layouting...
If the picture's not working then I meant how do you do the 3D board thingies 
Mowcius
yeah thats target, has this build in
see here: http://server.ibfriedrich.com/wiki/ibfwikien/index.php?title=3D-view
Yeah, we use eagle cos it's free. That looks cool but I'll have to pass cos i'm a tight arse...
Mowcius
Target is also free, but limited to 250pins. thats enough for me
Ok, cool I didn't see the free version...
I think I'll be trying target then cos I'd like to be able to do 3D designs...
Mowcius