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Old 03-02-2011, 10:14 PM   #31
Spiyda
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Sounds good Chris - keep me on that list.

It looks like i may be making a dash board for my composites project now - not sure if you'd be up for this - but i'd like to design around the basis of using as many of these funky LED style guages as possible. Water temp, Fuel level, AFR?, RPM?... as many as you can make

So rather than having several off-the-shelf guage units bolted into a dashboard, having all LEDs set into it. And i may reverse engineer my digi speedo so as to just have a square LCD screen for vehicle speed. Space age.
No problem..

sounds fun... LEDs are a bit old fashioned now, but there are very easy to read..

speed isn't as much of a problem as an odometer.. that is required by law and harder to build..

It would be worth playing with some LEDs behind translucent acrylic etc.. a long time ago when I was at college, I made a stereo with LEDs Meters, with the LEDs mounted to one layer of acrylic, with a smoked layer in front.. from any distance they were invisible until on..

Also, I have a method of laser printing onto hard materials.. might be useful for legends etc.



btw I just finished a new design for the anti-slosh circuit. I was a bit worried that the one I was using earlier was somone elses design.. the new one is mine based on a generic circuit, so there cannot be any rights issues..
It delayed the Fuel gauge a bit, but not much. A very long day's work !

the Fuel gauge with the anti-slosh should be ready for testing tomorrow

.
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Last edited by Spiyda; 03-02-2011 at 10:31 PM.
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Old 04-02-2011, 06:22 PM   #32
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I never know whether to put updates on these making stuff threads.. but as I've said before, those who are not interested can skip over.. !

Update on the fuel sender..

It works ! .. the new non-patented anti slosh circuit works fine, the first draft pcb works OK, just one error to fix ..

The video below shows the circuit with some LEDs temporarily fitted to it..
the adjusters for each LED set point are on the left..

the bit that took all the trouble was the response speed.. slow is good !
and when its on test on the car I will adjust that response speed so that the gauge stays fairly steady when hard cornering and braking.

Onward and Upward.. !

Tonight I am working on an LED Tachometer !

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Old 04-02-2011, 09:02 PM   #33
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looks good also very interested by the led tacho would look really nice in a curved shape on top of my honda clocks
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Old 07-02-2011, 06:59 PM   #34
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The new LED Fuel Gauge is now on the website

I've not spent a lot of time on the website listing as I'm still working on three other circuits at once.. !

as below...

www.spiyda.com
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Old 07-02-2011, 07:02 PM   #35
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Any pics of the unit in the black box?
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Old 07-02-2011, 07:05 PM   #36
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Any pics of the unit in the black box?
Nope,

its just a black box.. but I could take one if you are desperate !

the LEDs of course are seperate, on leads for fitting to your dash..

the box is just a box to stick to the bulkhead or the back of the dash etc..
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Old 07-02-2011, 07:58 PM   #37
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Looking good.

Will put an order through once i get my next student loan payment

Will get hold of some tinted perspex too and look into mounting them behind that.

Looking forward to the seeing the rev counter - smart stuff!
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Old 07-02-2011, 08:04 PM   #38
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Ah okay that makes sense now, I thought the LEDs were part of the black box and was wondering how it'd mount I'll be buying one when I have the moolah

Does it need to be programmed to work with a tank sensor? I've got an spi/mpi tank, do I just connect it up and away I go? Also if half the LEDs light up does that mean half tank?

For anyone else thinking about buying Spiyda's products, don't hesitate, the Led stuff is really good, much brighter than standard if buying bulb replacements and the service is quick!

(Now where's me discount? .... only kidding! Everything above is honest)

Cheers
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Old 07-02-2011, 09:03 PM   #39
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Ah okay that makes sense now, I thought the LEDs were part of the black box and was wondering how it'd mount I'll be buying one when I have the moolah

Does it need to be programmed to work with a tank sensor? I've got an spi/mpi tank, do I just connect it up and away I go? Also if half the LEDs light up does that mean half tank?

For anyone else thinking about buying Spiyda's products, don't hesitate, the Led stuff is really good, much brighter than standard if buying bulb replacements and the service is quick!

(Now where's me discount? .... only kidding! Everything above is honest)

Cheers



I guess I need to do some decent pictures to show the bits.. I've just been working silly hours trying to get all the ideas in my head translated into products with a bit of testing behind them ! I need to do as much of the design work at once as possible before I run a whole load of circuit boards and program the CNC machine to do the drilling.

With this particular kit (8 LEDs with anti-slosh) its a bit more complicated..

The same gauge will work with any resistive sender with low resistance for a full tank (thats most of them) but the settings will be different.. It can also cope with linear and non-linear senders since each LED is seperately calibrated.

As long as I know it's for a mini sender in a mini tank, I can set up for that out of the box, which should be approximately right, but the idea is that you can calibrate it exactly to your tank and sender.

Standard senders vary a bit, and if you have a non-standard tank or sender it will definitely need calibrating.

Calibrating is a bit of a performance, you need to have a tankfull of fuel, but not in the tank ! set the first LED with say a couple of litres above where it runs dry, then add a measured amount and set each successive LED..

But as I mentioned, as long as I know its for a Mini, I can set it approximately correct out of the box..

Eventually I'll set up the website so that you can choose which colour LEDs, a bit like the way I have it set up for the light bundles..


Thanks for the comment about the LED lights.. and of course you get a discount ! but I'll also be offering a discount to anyone who is a member I'll post a code in the mebers section..

And, if you get a minute, please add a review on the site.. and anyone else too please.. as its a new site, it needs that kind of stuff building up.. !

Cheers

Chris
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Old 08-02-2011, 01:40 PM   #40
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Anyone interested in a digital Tachometer with 4 Digit 7 segment display,
rather than the LED Analogue tachometer ?
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Old 08-02-2011, 01:49 PM   #41
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Anyone interested in a digital Tachometer with 4 Digit 7 segment display,
rather than the LED Analogue tachometer ?
I could be interested in one, price dependent of course!
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Old 11-02-2011, 08:44 PM   #42
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I could be interested in one, price dependent of course!
Its only the beginnings of a design at the moment, not even working on breadboard.. but...

Current thinking is an all digital device, 2 digit display (with the possibility of an extra two digits set to zero all the time) with probably 10 LEDs as a bar display also..

option of Red or Green display

I'm hoping to build in a programmable shift light as well..

and if Im really clever, a programmable rev limiter.

input will be from coil LV wire or direct from ECU

On boards ready to build into your own dash, old instrument or whatever..

Price is a bit guesswork at the moment, but maybe around the 35 - 45 mark

this will take a few weeks to materialise..
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Old 11-02-2011, 08:56 PM   #43
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Sounds great. I'd definately prefer the bar style LEDs to a digital display though. Just a qustion though - you say "possibilty of extra two digits" but how would you display rpm in anything less than 4 digits?

I personally wouldn't need/use a rev limit function but could be a good idea!
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Old 11-02-2011, 09:41 PM   #44
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Sounds great. I'd definately prefer the bar style LEDs to a digital display though. Just a qustion though - you say "possibilty of extra two digits" but how would you display rpm in anything less than 4 digits?

I personally wouldn't need/use a rev limit function but could be a good idea!
the units and tens digits are always changing, makes them pretty useless.. so just the thousands and hundreds digits would be active.. the units and tens being permanently zero if used... If all four are active, it also means less other functionality.. eg less LEDs etc..
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Old 11-02-2011, 09:55 PM   #45
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Ahhh i understand. Makes sense, i guess i didn't actually think about it!

That would be good (one of the reasons i was otherwise put-off a digital display was the fact that the numbers would be blasting about all over the place), i think this could really sell well.

If it and the LEDs could be made bright enough to be visible through some tinted perspex then i am 100% keen I like that idea of not being able to see anything when off. It'll be just like my brother's Dakota Dash in the Hot Rod (which, incidentaly, uses all digital segment displays, and the RPM is 4 active digits)
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