| [ Total Views: 1321 | Total Replies: 14 | Thread Id: 100765 ] |
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 narumi
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| posted on February 5th, 2013 at 12:38 AM |
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Prototype 40 years old Hybrid Speedo
Edited
(wrote it late at night and didn't really make sense)
the 16 x 2 lcd monochrome is the display you might find in some of the vending machine with mostly, green backlight.
There isn't much room to display the units but well, fuel is in percent, oil is in PSI, temp is in celcius and volt.....
I had my old man cutting the speedo backing plate.
it is still on a workbench and will be until I have a day off again. the calibration still needs to be done with the sensors used
this drive the whole thing http://arduino.cc/en/Main/ArduinoBoardMega2560
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narumi
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| posted on February 5th, 2013 at 12:39 AM |
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the $10 16 x 2 display.. which you can probably get for less on e bay
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narumi
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| posted on February 5th, 2013 at 12:41 AM |
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due to the mounting position of the LCD, the backlight needed to be re-position which is a lot of hassle using the good old incandescent globe.
so multiple holes were drilled for the white 5mm LEDs
also the values are simulated, running off of a potentiometer, still need to spend a day or two making the signal amplifier for the fuel sender etc...
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donn
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| posted on February 5th, 2013 at 07:02 AM |
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Right, but I knew all that stuff 
I dream of a day when a chicken can cross a road without being asked for it's motive!
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Doug Sweetman
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| posted on February 5th, 2013 at 08:52 AM |
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Nice ! Cool functionality and self developed, I like it !
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vwjon
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| posted on February 5th, 2013 at 09:24 AM |
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It looks fantastic, very impressive! but what the hell are you talking about?
3 1959 cadillacs
1 musso
2 early notchbacks
2 split kombis
2 split panels
1 split ute
1 low light panel
1 ex-pmg bay
1 country buggy
1 beetle ute
1 14" syncro caravelle
1 16" syncro doka
1 golf cabrio
1 vw camper trailer
2 3meter bombs
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nils
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| posted on February 5th, 2013 at 01:43 PM |
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Nice work indeed
Quit calling rust patina
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SebastienPeek
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| posted on February 5th, 2013 at 02:30 PM |
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This is freaking awesome!
Arduino's are great fun and make stuff like this quite easy to do at home.
I have a couple lying around waiting for a rainy day myself.
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waveman1500
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| posted on February 5th, 2013 at 03:45 PM |
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Very impressive stuff!
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vlad01
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| posted on February 7th, 2013 at 01:55 PM |
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| Quote: | Originally
posted by narumi
due to the mounting position of the LCD, the backlight needed to be re-position which is a lot of hassle using the good old incandescent globe.
so multiple holes were drilled for the white 5mm LEDs
also the values are simulated, running off of a potentiometer, still need to spend a day or two making the signal amplifier for the fuel sender etc...
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Nice!, this is the sort of crap I used to do a lot in school and tafe. I build a hand held oscilloscope but the sample rate was crap due to the
limitation of the AD convertor built in to the chip. Could of used an external AD with better rates but I was lazy.
Are you using a PIC micro controller?
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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narumi
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| posted on February 17th, 2013 at 12:27 AM |
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Sorry for in-activity, busy with work and life and such.
Vlad, it uses Atmel ATmega 2560 on arduino framework
the code I have in there is pretty simple. calibration is hard coded so it needs a laptop for calibration.
it display calculated raw value with no buffer so the values such as fuel fluxuate as the car tilt, brake, corner etc.
the only impressive thing here is my old man's laser cutting by hand lol.
by the way I fried the MCU by feeding 12v into the 5v pin so the laptop won't see the the device anymore. but it still works.
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narumi
Seriously Crusin Dubber
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| posted on February 17th, 2013 at 12:34 AM |
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the brain
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vlad01
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| posted on February 18th, 2013 at 09:06 AM |
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nice. all you need now is to develop a board so you can enclose it all inside the gauge.
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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 helbus
A.k.a.: Pete S
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| posted on February 18th, 2013 at 12:13 PM |
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Before I read the other comments my thoughts were 'impressive'. Then I see that you have definitely shown a number of people that it is
impressive.
If you could develop this kind of work to fit to other old type speedo's then you would have a potential market of street machiners, hot rodders etc
that want the info on the dash without the intrusion of 4 extra gauges.
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Doug Sweetman
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| posted on February 18th, 2013 at 03:51 PM |
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+1 what he said....
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