[sti robot]

A logging mode is done...more details to come.

Temp conversion is finished.

Todo:
-Get and calibrate oil temp sender (they said it should be here by Friday)
-Wire up pressure sensor, calibrate, etc.

[Mack]

Good to hear.

FWIW- This will be the only mod I do for the next year. Make me happy about that!

[sti robot]

I think i might be able to have this all loaded and stuff by Friday. On Friday I'll drive the car to work/leave it in the hot sun and be able to get temp readings from the unit of the temp on teh chip. That way we can tell if it is a heat problem (yeah that is still the major issue with this thing).

It is either heat or dirty power supply from the car. If it is heat I'll try a heatsink and maybe a fan. If it's the power supply I can clean that up with a little circuit (voltage regulator). Luckily these are $1.50 or less. Basically the board should only be getting 12V but if it gets a sustained 13V it could cause a problem. IIRC the sti runs at 12.5V or 13V most of the time.

http://www.elecfree.com/electronic/w...007/07/reg.png
http://www.elecfree.com/electronic/p...t-with-lm1084/

[sti robot]

More on the datalogging mode.

I added this yesterday and got it working. Basically I can cycle thru to a mode that says "press b to start logging" I hook up the computer. Turn on something that pipes serial input from the serial port to a file (a simple one line command in all operating systems). And I get output that looks like this:

Logging...
T1, T2, Oil Temp, Boost, x accel, y accel
70, 300, 250, 10, 2, 2
60, 310, 251, 12, 2, 1
65, 320, 250, 12, 2, 1
70, 300, 250, 12, 2, 1

...which is easy to import into excel using the "comma delimited text" option

I press either button to leave this mode. During the logging the lcd goes blank.

[sti robot]

I spent most of my lunch break on the phone (this be a smoke break ).

I called ISSPRO about the temp sender I purchased from them and got to talk to one of their engineers (try that with Defi). Very nice guy who was very interested in helping me out and getting me all the info I need to get a good, correct R-T curve for the sender. I should get an email from him soon.

The other phone call was essentially a job interview. It went well and I should hear back from them middle of next week.

[sti robot]

I was thinking about the management of this project the other day...

I might make this an open source project with a web page, a repository, builds, a team, etc. I won't make $ off of it but it might better serve the project itself and the community at large.

To do this I'd need 1 C developer and 1 webmaster (to start).

I'm thinking you could download a source code flash based on a form you fill out and check off of a webpage. So, say you want oil pressure, oil temp, and boost. You click on those check boxes, type in what you want the splash screen to look like and what order/type of displays you want and it spits out code you flash to the device.

This is just a thought. I'll revisit it after I get a prototype done and installed in my car.

[Mack]

Could be cool, but seems like the code would have to be real robust if it were to be so modular.

[sti robot]

Originally Posted by fullerton

Could be cool, but seems like the code would have to be real robust if it were to be so modular.

It's not that robust now. It could be. I mean I've got code that does the modes and that calls code that does the displays and you can feed the displays any of the values from any sensor. The sensors conversions are separate code...sort of...I started doing that with the temp and boost stuff. The accelerometer code is not very modular.

While custom stuff for everyone is awesome I believe that some form of modularity can be reached. Also, I see a wide range of people having use of something like this. Imagine diy, modular digital gauges that the average person can put together by just following some directions. I don't see myself having the time to build custom roms for everyone. On the other hand I may be, being to ambitious in imagining this and I really should shoot for the friends and family approach. At least in the beginning I should keep it small and refine the code with the help of a few lab rats.

[Meridock]

I eat cheese you know...

[sti robot]

^ I know who eats cheese...