General Talk about Fieros - Most Innovative Fiero Product to date.

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Most Innovative Fiero Product to date.

Printed From: West Coast Fieros
Category: General Fiero Chat
Forum Name: General Talk about Fieros
Forum Description: Just want to chat about fieros? here's the place to make that happen.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=3069
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Topic: Most Innovative Fiero Product to date.

Posted By: Capt Fiero
Subject: Most Innovative Fiero Product to date.
Date Posted: 25 October 2012 at 7:11pm

This is copied from a thread on Pennocks. I am ordering at least one, if not 2 of these. Skip to page 3 for the latest info. It replaces the Aux gauge pod on V6 cars or can be added to cars that don't have an aux cluster. Or you could mount it someplace else. However being able to monitor extra fuel rates used, top speeds, average speeds and even 1/4 mile times, 0-60 times and other useful data will be amazing. No one has ever made anything like this for our OBD1 cars. I can't want to have this setup. Will make recording my driving history so much easier.

Before you ask no there is no set price yet. That has to be determined when he gets the project into mass production.

Link to the thread is here, http://www.fiero.nl/forum/Forum2/HTML/124515.html - http://www.fiero.nl/forum/Forum2/HTML/124515.html

As promised, here are a few images of the final coding, I hope.

Got to love the boot screen.

This is the initial screen without the AUX gauge adapter plugged in.

This is with adapter in place. The computer does a check at boot to determine if the adapter is in place. If so, this is what you will get, otherwise the previous image.

Aux gauge with OIL pressure warning enabled. There will be an audible alert as well.

Trip A with the full trip time shown. Don't try to work out the math, I did this just to show the format.

Trip B with the actual format in place. All the variables are reset as a set.

The economy computer main screen.

For those who want a somewhat analog style instant mpg display.

Same goes for the speedometer.

Oh, and the fun part of the computer I told you about. Don't try to do the math on this as well. This was made using a simulator circuit that is not the most linear.

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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.

Replies:

Posted By: Colby
Date Posted: 26 October 2012 at 12:54am

That's pretty cool. In my old Fiero I had something called an http://ecomodder.com/wiki/index.php/MPGuino - MPGuino in my car to keep track of fuel usage. Only problem was that it didn't work with the type of injector the Duke has, so it ended up not being much more than digital speedometer and I took it out. Plus the cheap 16x2 LCD was pretty useless in the cold weather. The display in those pictures should look and work great though.

Coincidentally, for the digital electronics course I'm taking right now I was also considering something that could replace the Fiero aux gauges (as a final project), so it's neat that someone is already working on that.

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88 Formula 5 speed

Posted By: Capt Fiero
Date Posted: 26 October 2012 at 1:28am

We are also talking about it on the http://autos.groups.yahoo.com/group/FIERO/?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=1 - http://autos.groups.yahoo.com/group/FIERO/?v=1&t=directo ry&ch=web&pub=groups&sec=dir&slk=1 yahoo groups list. They have something like 2800 members so its a rather huge email list. The reason I brought it up is somoen else had mpGuinio in his car and mentioned it. The unit that this guy is building is setable for any type of Fiero, from 2.5 to big 7.4 and 8L V8's.

I want it for my 4.9 just to see how much worse or better the fuel economy is. He claims 300hp and 30mpg. So we shall see just how close he gets.

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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.

Posted By: chetw77cruiser
Date Posted: 11 November 2012 at 8:50am

Cheese wrote:

That's pretty cool. In my old Fiero I had something called an http://ecomodder.com/wiki/index.php/MPGuino - MPGuino in my car to keep track of fuel usage.

Coincidentally, for the digital electronics course I'm taking right now I was also considering something that could replace the Fiero aux gauges (as a final project), so it's neat that someone is already working on that.

I figured that with all the praise I am getting from the Capt'n, I would chime in a bit. I actually took some inspiration from the MPGuino. I actually am building a complete instrument cluster replacement and the trip computer is the main controller for the system. Once this is complete, the rest will fall into place.

Would you share any information about your project? If there is anything that I may be able to help with, just ask.

Posted By: Colby
Date Posted: 11 November 2012 at 4:53pm

chetw77cruiser wrote:

Would you share any information about your project? If there is anything that I may be able to help with, just ask.

My plan right now, for the purposes of my course, is to take the signals going the volt and oil pressure gauges into an Arduino, and then out to a pair of 4 digit 7 segment displays. I like the idea of those 7-segment displays because they'll be pretty visible, have a decent operating temperature range, are cheap, and they fit in with the era of the car.

If I still have time, since those 7 segment displays won't take up the full width of the aux gauge cluster, I'm going to look into an LCD display which could be used to show temperature, acceleration from an accelerometer, and anything else I can think of. The schematic and code for the MPGuino are available, so I could look at those and integrate a simple trip computer, but at this point I just don't know how feasible that is for me. It'll depend on how well the first part of the project goes.

And thanks for the offer.

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88 Formula 5 speed

Posted By: Dawg
Date Posted: 11 November 2012 at 6:35pm

Do yourself a favour Colby, use the serial versions of these displays.
Solarbotics in Alberta has some nice ones. Quick and easy to
implement.

Cheers,

Dawg

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You dream it up....I'll make it

Posted By: chetw77cruiser
Date Posted: 11 November 2012 at 6:45pm

I agree, using straight led to controller uses quite a few I/O lines. One could also use the max7219/7221 led drivers.

Posted By: Colby
Date Posted: 11 November 2012 at 8:18pm

Don't worry, I'm using shift registers. I'm only using 3 of the digital outputs to light up the displays.

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88 Formula 5 speed

Posted By: chetw77cruiser
Date Posted: 26 February 2013 at 2:09pm

Any update on your project for class? I have been slowly plugging away. I do have a prototype in a car that I am testing at the moment, no pictures of it yet though. A few items have been added or enhanced. On of these is the estimation of wheel horsepower from the performance data. Hopefully in the next month I will have something to show, probably sooner depending on weather.