I will be looking at this more soon. I am interested in how you end up doing your screens since I have the same dash.
I have been looking at some very cheap screens but they are low resolution. May work fine for this application however. I want to see if I can fit two screens into the dash like they did in the video.
I have a spare dash sitting here that I will be trying to redo to support the screens. A 7 inch screen will be very small for this.
In one of the videos I was looking at they mentioned they used a beagle board. That board was a dual processor board and it runs BOTH of the screens. They have one screen setup to always display the speedo, turn signals and other information while the other shows the other gauges and information such as navigation etc.
I will have limited time this summer to work on this but I hope to atleast get 1 or more screens in the cluster housing. I have a 2003 1500 Avalanche with the transmission gauge added and a 2500 overlay. I also have installed blue LED's for the backlighting of my dash and door buttons.
The boards mentioned here are really for a PC and are WAY over powered for what you need.
I am looking to make use of the following hardware to make mine work...
Freescale development board...
Home made board using Parallax Propeller and Scantool microOBD 200 or similar module...
Cheap LDVS screens (Under $50 apiece)
I will plan to use linux as the OS for this..
You could use an Aduino instead but the propeller is more powerful. I plan to use the propeller to decode the ODBII information that the dash gets as well as have it detect the turn signals and such if needed then pass this to the ARM based board for processing. All of the necessary signals and power are available on the connector so it should be relatively simple. May need to remove the stepper motors to give more room to mount the hardware and to reduce the power consumption by the dash. I plan to keep the cluster in place so that the mileage continues to totalize if I ever decide to sell my truck.
It really doesn't eat power, but I run with this. http://store.mp3car.com/Mp3Car_DSATX_p/pwr-023.htm If your running i3 with that board I think you could get away with using this http://store.mp3car.com/M2_ATX_HV_14..._p/pwr-027.htm If you only use it for the mainboard and don't start powering your screen, hubs, ect with it. SNO
I am using am M3-ATX with my board I think. It fits VERY snuggly in the 350 case. But have had no issues with power. The only thing I don't like is the power supply is tight up against the case housing and I am afraid it will break it off at some point but then again it allows the case to be used as a heat sink sort of... ;)
I have left it running for hours on my desk and it has never gotten warm. You can BARELY feel any temperature difference when you feel the case. I am guessing I am only about 20-30 watts.
Again though, this is very much over kill for such a project. Using an ARM board is more than sufficient and FAR less power hungry. I should be able to get my ARM board booted and running faster than the diagnostics on the car normally take. (With a modified boot sequence they have gotten these boards down to .2 seconds from power up to having an active display. 2 seconds to be fully running without network support. The network depends on the IP addressing you are using. For hard coded IP you are at the 2 second mark for full up and running. )
This looks very interesting. I think it might be very expensive though. SNO http://www.youtube.com/watch?feature...78CF11268448#!
Yes, you will be able to do that with one of these ARM boards. They likely have their own variation of an ARM board running those displays. QNX has a very fast display that they are doing some of that stuff with. A local shop a friend works at is trying to develop something similar. And if you look at some of the commercial vehicles they now come with some sort of digital screens. I know the new buses we got when I was still driving last summer were getting about a 7" square screen showing the speed digitally and the other stuff as well.
Realistically these are not that expensive to do yourself if you just need the screens, a board to run the screen and some hardware to back it up. The hard part comes when you have to program the screen. For a non programmer this would be a pain in the butt but otherwise it is simple. But programming the display is something anyone will have to do since there really is no software that does this available YET... ;)