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Old 05-18-2009, 10:03 AM   #11 (permalink)
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Verrry impressive...

Have you zeroed in on uSec/gal yet? I'm within 0.5% per tank and still trying to get closer.

I'm currently working over the code to add more menu items. Adding a menu pick to allow directly entering the fill gallons and let the Guino calculate and save the uSec/gal. Also adding a menu pick to enter the distance actually travelled and calculate/save the VSS pulses. Strictly for convenience so you don't have to run through all setup screens every time you make a change.

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Old 05-18-2009, 11:34 AM   #12 (permalink)
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Nice yetimus
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Old 05-19-2009, 01:31 PM   #13 (permalink)
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Very cool on the Passat guino. Makes me wonder what other displays will work.
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Old 05-22-2009, 12:58 AM   #14 (permalink)
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Quote:
Originally Posted by rmccomiskie View Post
Have you zeroed in on uSec/gal yet? I'm within 0.5% per tank and still trying to get closer.

I'm currently working over the code to add more menu items. Adding a menu pick to allow directly entering the fill gallons and let the Guino calculate and save the uSec/gal. Also adding a menu pick to enter the distance actually travelled and calculate/save the VSS pulses. Strictly for convenience so you don't have to run through all setup screens every time you make a change.
Thanks all for your kind feedback! rmccomiskie - I haven't made much progress zeroing in on uSec/gal - still ~ 2%. Lots of tinkering with the display, relatively few miles driven (i.e. bike commuting), and infrequent fill-ups on the VW (20+ gallon capacity and 40+mpg) make calibration rather time-consuming. I'll be interested to hear about your code hacks - sounds really interesting!

wagonman - any display that is HD44780 or KS0066 compatible will work AFAIK- link.

I'm still looking at some other displays that will provide a more readable big-number display as well as better backlighting. I'll post back if/when I come up with an upgrade....or... make it mo' gangsta (thanks leanburn!)

dcb - thanks for making this project possible!
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Old 05-25-2009, 03:51 PM   #15 (permalink)
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Old 05-29-2009, 10:39 PM   #16 (permalink)
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Enclosure 5 x 2-1/2 x 1-3/4

Press-fits perfectly in the ashtray of my 95 Neon, the hole in the side allows USB plug-in or the RJ11 to be routed through in the vehicle.

Pushbuttons were made by cutting off LEDs.

The only trouble I had with the initial installation was the RJ11 cable wired backwards - fortunately the MPGuino (the kit from Spiffie) wasn't fried.

I hooked to the #4 injector - unfortunately you can't see the wire because it is in the conduit.
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Last edited by mluckham; 05-29-2009 at 10:52 PM..
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Old 01-30-2010, 11:07 AM   #17 (permalink)
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hello all
are in Romania (that's if you hear about us)
I have a question for yetimus
I have a car identical to yours
I would like to build one and I mpguino
hardwer problem is almost solved
which is the source code used by you?
excuse 'English' but translated with Google
I learned in school is Russian and German (it was during communism)
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Old 03-09-2010, 02:05 AM   #18 (permalink)
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Plexi-enclosure

Here is my enclosure almost complete. Made completely from re-used stuff I had lying around the house.
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Old 03-09-2010, 06:49 AM   #19 (permalink)
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I finished and I mpguino
I used the Arduino programming than the
I built a separate wiring and I mounted ATMEGA168
works perfectly
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Old 03-09-2010, 08:05 AM   #20 (permalink)
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Here's mine


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