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david, the gauges can be dimmed for night driving,
but in the position i mounted them in,
the steering wheel blocks them out, which is what i wanted.
....as an added bonus the drivers mirror picks up the reflection
and the egt and boost values are displayed on the mirror at night.
Neat effect
 
This is an Arduino based touch screen device I made to do gauge duty in my 80, did the same thing for the 100 I used to have. Does various temps and pressures, voltage/split charge, speedo correction, trip meter. Still got to fit the EGT probe and oil pressure sensors but the boost, coolant temp and coolant loss sensors are working.

This is quite remarkable...


Group buy anyone? :D
 
I've added a few more features since and sent the makings of one to a member in Australia.

IMAG1545.webp
 
Very interested!

I guess this would be built for the HDJ80 crowd as it appears to be tied into the ECM.

Im with a cummins and NV4500, so very little of the computer would be able to talk to it, it wouldnt be as functional in my cruiser as it is, I suspect.

But it does look like a super cool interface in comparison to aftermarket gauges, maybe those with HDJ's looking for an upgrade will pipe up and see if someone will post pricing for the unit if they feel like selling a few.

:popcorn:
 
I guess this would be built for the HDJ80 crowd as it appears to be tied into the ECM.

Im with a cummins and NV4500, so very little of the computer would be able to talk to it, it wouldnt be as functional in my cruiser as it is, I suspect.

But it does look like a super cool interface in comparison to aftermarket gauges, maybe those with HDJ's looking for an upgrade will pipe up and see if someone will post pricing for the unit if they feel like selling a few.

:popcorn:

1HD-T's had mechanical pumps, it wasn't until '95 I believe that there was an engine ecu that could "talk" to a display like this in the HDJ's. All the same, that's a very cool display!
 
1HD-T's had mechanical pumps, it wasn't until '95 I believe that there was an engine ecu that could "talk" to a display like this in the HDJ's. All the same, that's a very cool display!

1hd-fts still have mechanical pumps there shouldn't be an ECU if I remember correctly.......
Still old school mechanical injection
 
It doesn't talk to the ECU, it uses after market sensors like you would for after market gauges so it's not engine / vehicle specific. It's not a commercial product, no bin button I'm afraid, it's purely an enthusiast project and staying that way but I do make the interface boards that do all the hard work ready to plug into microprocessor and display parts that are commercial products you can bin those. Google 'Arduino Mega 256' for the micro processor and 'Touchslide shield' for the display and if the price and thought of running some software on your PC to program those doesn't bring you out in a sweat then it could work out for you.
 
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I love those little microprocessors loaded with Arduino. I'm thinking of picking one up to manage my lights through MOSFET's. The possibilities in a vehicle are almost endless.
 
It doesn't talk to the ECU, it uses after market sensors like you would for after market gauges so it's not engine / vehicle specific. It's not a commercial product, no bin button I'm afraid, it's purely an enthusiast project and staying that way but I do make the interface boards that do all the hard work ready to plug into microprocessor and display parts that are commercial products you can bin those. Google 'Arduino Mega 256' for the micro processor and 'Touchslide shield' for the display and if the price and thought of running some software on your PC to program those doesn't bring you out in a sweat then it could work out for you.

huh, well maybe it is workable for the other diesels...

What about the pyro and oil hookups, is the unit plug and play for pyro probes? And what type of probe.

Same goes for the oil, boost pressures, you must have that built for a certain ohm range scale?

So you got any guesses as to what the system would cost all in? How much are you trying to get for your board, it sounds like the other hardware is about $240, and the probes coolant and pressure senders probably run around 150-300 depending on where ya get them.
 
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pyro probes will all be the same type. The pressure and temperature readings are table driven so it has tables for specific sensors I am using but if you have the data for another sensor, either from the manufacturer or measured yourself that can be accommodated. How much you spend on sensors depends which ones and how many you go for, you don't have to run a full set but not cheap is the simple answer for a full set.

Cost of the interface is variable - for a pcb £5 then buy and fit your own components. A kit of components from me is £25 and if you're patient I'll build it for you or just post a kit if you like soldering. If you want a clock it uses a Chronodot on a bit of veroboard those are about £22 here in the UK or you can source and solder one yourself. EGT interface is an addon about £18 here or again source and solder yourself.

For all the above you need a programmed Arduino & Touchslide, the program is free you just have to get it onto the hardware.
 
pyro probes will all be the same type. The pressure and temperature readings are table driven so it has tables for specific sensors I am using but if you have the data for another sensor, either from the manufacturer or measured yourself that can be accommodated. How much you spend on sensors depends which ones and how many you go for, you don't have to run a full set but not cheap is the simple answer for a full set.

Cost of the interface is variable - for a pcb £5 then buy and fit your own components. A kit of components from me is £25 and if you're patient I'll build it for you or just post a kit if you like soldering. If you want a clock it uses a Chronodot on a bit of veroboard those are about £22 here in the UK or you can source and solder one yourself. EGT interface is an addon about £18 here or again source and solder yourself.

For all the above you need a programmed Arduino & Touchslide, the program is free you just have to get it onto the hardware.

so a K type or J type thermocouple would be fine?

I think many of us who are interested, are familiar with soldering, but likely the majority would be overwhelmed with knowing how and where to best solder things together. If there is interest I suspect it would be in purchasing a kit that is very close to plug'n'play, even if it costs a bit more.

Im thinking a single unit with a link to where to purchase the remaining senders, arduino parts, as well as a link to the software and how to upload it would probably be what those of us not familiar with arduino would need to brave into purchasing and installing this cool gauge youv'e created. :cheers:
 
You caught me out on the EGT probe, it needs to be a K type.

I mentioned the self assembly soldering option so it's clear that is an option, you don't have to get me to do it :) I can't mass produce them but slow and steady I can do.

It is pretty plug and play. You buy an Arduino Mega 256 and a Touchslide. I supply an interface board that piggy backs on the Arduino which has fly leads with connectors on to be connected to power, sensors etc. I also supply a PCB for the Touchslide to plug into which has a fly lead to connect it to the main PCB on the Arduino and an extension screen. There are optional plug and play daughter boards for clock, EGT and when I've developed it further logging and possible TPMS. To connect the outside world to the board you can either have short tails included in the £25 of the basic interface or pay for longer tails for convenience entirely up to you.

I've been using VDO sensors for water temp, oil pressure, atf temp etc and some unbranded 2 wire sensors for intake pre/post intercooler temps. The boost sensor I'm using came from a local supplier for £29 iirc. If there is data for a sensor I should be able to make it work with this board. The only AFR solution I've got so far is £180 for a 3rd party daughter board and Bosh sensor there might be others out there.

Some pics to help you, 1st is the £25 package, 2nd shows clock and EGT boards, 3rd shows default tail length verses 2.5 meter bundle option.

IMAG1529.webp


IMAG1530.webp


IMAG1531.webp
 
Little overdue.

Here are my 77's gauges for my turbo install.
Isspro EV2 Series w/ Red Pointer and Green Backlight
Oil Pressure, Pyrometer, Boost Gauge
Loving them so far. I have programmed the EGT to have a warning light go off at 1200 deg F.
Thinking about setting a low oil pressure light if I was to blow a line feeding my turbo.

77 Gauges.webp

77 Gauges.webp
 
I forgot to mention I had to take a dremel and cut the back of the face plate for the dash to set the gauges in behind clean.
Got the gauge plate from Crushers. Cheers!
 
HJ61

So this was my last truck.

P1090132.webp


P1090161.webp


P1090133.webp
 

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