GI: "YarGauge" replacement clock module (Digital Tach, etc.)

[CTScott]

A while back there was a discussion about converting the clock on the cluster to a digital tach. I have been exploring this a bit more and am looking at creating a replacement module for the clock that would have an 8 character display and would allow you to switch between the following functions (using the same push button that is used currently to set the clock):

1. Tachometer (RPM 9999)

2. Diagnostic trouble code read/reset (DTC 9999) (If more than one code is present it would scroll between the stored codes). Holding the button for 5 seconds would clear the stored code(s).

3. Water Temp (WT 999F) or (WT 999C)

4. Battery Voltage (VOLT 99.9)


And, probably a few more. Maybe even MPG (instant and average), if I can figure out how to calculate those from the available data.

It would remember the last display choice and F or C for temp.

Installation would require popping the cluster out, removing the clock module (a separate chuck held to the back of the cluster with some tabs), disconnecting the clock connector, replacing the clock's circuit board with mine (pop a couple of tabs and remove two screws), reconnect the clock connector to my module, and tap four wires onto the other cables going to the cluster.

Target price would be $75. The question is at that price, would there be enough interest to make it worth my time?




Note: Jump to post 512 of page 29 to see how this has evolved:
http://www.yarisworld.com/forums/showthread.php?t=21909&page=29

The original price estimate was based on using an very inexpensive display. Through my development testing I found that the cheap display (and a couple of other more expensive displays) just wouldn't work well with sun glare on the cluster. In my quest for a better display to combat this issue, I settled on a high-end, full color OLED display. The chosen display unfortunately costs $79, which is more than the original target price, so the current target has moved to $150-$200. This additional cost did bring about some great features that were not possible with the cheaper displays...

[ezhacker1]

Wow what a great idea would be very oem. I was just expecting it to be tach but if it has all those features 75 isn't bad all.

[Altitude]

I think $75 is very reasonable. You might consider adding an automatic function to switch between the different readings every few seconds.

As for calculating MPG from available data, I found some sites on the net that discuss it only I can't remember the site name. It may have been from MP3Car.com or some OBDII developer site, but it is out there. If I can find the link (I think I have it bookmarked on my laptop) I'll post it.

[contraband831]

that sounds awesome! ***I voted on the poll and it sent me to another thread***

[talcum]

$75 sounds great. I've been contemplating how to do exactly what you're talking about.

Bob

[ChinoCharles]

Ummmm yes.

[TinyGiant]

i'd certianly save up for one of these. i could sell my voltage meter to it :)

[POORSHA]

I am in

[cali yaris]

I'll take 25. Whatever guarantees you'll make this, it's the coolest mod I've heard about in a long while (and I can't even use it for myself :cry: )

[ezhacker1]

how bout see if you can get (miles to empty) im curious to what other features you can implement, would be better than a SGII just cuz its oem looking.

And as we know that you are very well educated in electronics and stuff, we wont just get our hopes up. Man im excited.

[IsLNdbOi]

Would the clock function be preserved and be one of the functions you could cycle through?

[kustom play]

i would be down for one

[CTScott]

Would the clock function be preserved and be one of the functions you could cycle through?

Possibly. That's why I put the "I still want the clock" option on the poll. Adding the clock is not a huge deal, I just wasn't sure if people would still want it.

[GMKing]

at 75 dollars i'd buy that right now

[1NZYaris1]

Doh me bad i voted in the wrong box , i would take one .:bow::bow:

[lilredrocket]

Do it!!!!!!!!

[ezhacker1]

question: would this interfere with say my Ecometer? seeing im guessing that your module whatever would take signals from the obd2. Im not all that knowledge about the matter, but i read on other forums when searching, that 2 devices getting signals from same source would show errors on one of the devices. Now to me i just thought that splice the obd2 connector, have 2 female ends = 2 devices.

I just dont want to give up my ecometer.

[arunto]

i'm in for one!!

[heeroyuy01195]

I'm in but I still want to be able to use my clock :)

[CTScott]

OK. So far it looks like I'll keep the clock function. The other function that I am thinking of adding is inside and outside temperature.

I will also be experimenting with 1 line vs 2 line LCDs to see what will fit in the slot that the clock peeks through. the slot is actually about 1 5/8" x 5/8", so it may be possible to squeeze a 2 line by 8 character LCD in there, which would allow the clock or temp to be displayed simultaneously with one of the other items.

Also, the RPM measurement will be done directly (via the Tach input wire to the meter), rather than through the CAN comm with the ECM. This will make it more responsive than the devices that get it second hand from the ECM.

[cali yaris]

^ AWESOME. I would pay $150-200 for a device like this.

[devinlamothe]

This is amazing. I would definitely buy this!!

Just a question though ... what colour would the LCD be?

[ezhacker1]

maybe some kind of option for color? Im sticking with the stock 09 amber colors, i have leds and cathodes made around that.

[47_MasoN_47]

Sign me up! I'd love one of these. $75 sounds like a reasonable price to me. I would like to keep the clock though also :)

[Altitude]

^ AWESOME. I would pay $150-200 for a device like this.

Shhhhh! It is a great idea, but unless it does everything a Scanguage does at $150, it shouldn't be more than $100.

[advocate]

Garm's wallets are deeper than our I think unfortunately :cry:

This does sound amazingly well thought out and a great mod overall. Would be hard not to want to buy one that's for sure.

[CTScott]

This is amazing. I would definitely buy this!!

Just a question though ... what colour would the LCD be?

I'm prototyping on a greenish one, because I have it lying around. For production I will at the very least offer versions to match the two current colors of clocks. I looked into VFDs, which are what the clock displays are. A character one (as opposed to just 7-segment numbers) is about as expensive as the target price, so it looks like it will be LCD for sure.

[IsLNdbOi]

This is going to be cool. I'd want it amber though like all the other stuff in my '09.

[AlexNet0]

I'm definitely down for one of these. clock option would be ideal, but not a necessity.

[1NZYaris1]

question , is the clock in the US models to the right or left of speedo

[dvlnblkdrs]

i believe 07s have it on the left and 08+ have it on the right.. cuz mine is on the left as well... and yes, id be down :biggrin:

[IsLNdbOi]

question , is the clock in the US models to the right or left of speedo

The clock on my 5-door '09 is where yours is.

[1NZYaris1]

Mine also has the mpg and the likes but it is not pluged in :redface:
i can take a photo of it tommorrow and paste it up here :thumbsup:

[CTScott]

On the OEM cluster with the tach, the clock is integrated into the part where the fuel gauge and odometer are located.

My module will only be for non-S clusters, which have the separate clock module on the left of the speedometer.

[devinlamothe]

On the OEM cluster with the tach, the clock is integrated into the part where the fuel gauge and odometer are located.

My module will only be for non-S clusters, which have the separate clock module on the left of the speedometer.

Well that leaves out every Canadian model, since we all have our clocks with the fuel gauge on the right.

Nooooooo. :cry:

[CTScott]

Well that leaves out every Canadian model, since we all have our clocks with the fuel gauge on the right.

Nooooooo. :cry:

Interesting. So, all Canadian Yaris have tachs, or just have the clock as part of the fuel gauge?

[Speedjunkiejp]

i dont get it, i run my vin and it comes back a non-s but i have integrated radio and a tach. guess I am out of this :-(

[CTScott]

If there's enough interest for non-left hand clock people, I'll just offer a "packaged" option, where the device is in a plastic box like a ScanGauge.

[47_MasoN_47]

I have a 2009 sedan and my clock is on the right.

[devinlamothe]

Interesting. So, all Canadian Yaris have tachs, or just have the clock as part of the fuel gauge?

We all have tachs + the clock is part of the fuel guage setup.

[1NZYaris1]

I think all the Yaris over here have Tach's as well , at least in the Hatch back they do
Cause we have the Digital dash :biggrin:
i am more interested in water temp , and fuel mileage .
just so you know :laugh:
And THANK YOU VERY MUCH , for even looking to do this . :bow: :bow: :bow:

[bladesmith6]

No you're pretty much correct only the US manual trans liftbacks got completely fucked. toyota usa engineering idiots...

[yarstar]

No you're pretty much correct only the US manual trans liftbacks got completely fucked. toyota usa engineering idiots...

I COMPLETELY AGREE.

CT: I am so down with this! You wlll solve the 'no tach' issue very OEM and I can finally get rid of my aftermarket tach.

I love the idea of an outside temp option.

I agree with Garm. This a a great idea and I will buy it a heartbeat.

[IsLNdbOi]

If there's enough interest for non-left hand clock people, I'll just offer a "packaged" option, where the device is in a plastic box like a ScanGauge.

If this turns into a an external device (like smaller version of the ScanGauge) and turns out it's not going to be a replacement for the digital clock, then count me out.

Also, to get outside temps. you'll need to sell a thermometer probe like the kinds used with Gentex and CIPA rear-view mirrors that show outside temps., right?

[CTScott]

If this turns into a an external device (like smaller version of the ScanGauge) and turns out it's not going to be a replacement for the digital clock, then count me out.

Also, to get outside temps. you'll need to sell a thermometer probe like the kinds used with Gentex and CIPA rear-view mirrors that show outside temps., right?

For the right hand clock clusters, there's no place within the cluster to mount it (without cutting plastic). My original thought with this whole thing is that it would really be for the tachless people. It started off as simply a tach in place of the clock and then the more I thought about it the more features that kept popping to mind.

Correct on the sensor probe for outside temp (although if I can figure out the CAN messaging for the A/C ECU, I can use it's outside temp probe and save people having to run a probe wire through the firewall).

I am making great progress on this. I built a CAN bus interface this week and can read the PIDs (all of the standard OBD data), can read and reset stored DTCs, and can sniff the communication on the CAN bus between the ECM and the body ECUs.

[1NZYaris1]

Progress, is good , you so need a Yaris Medal of Honor :biggrin: :bow: :bow:

[Tamago]

i want one and i don't even have a clock

[IsLNdbOi]

So are you planning on two versions? One being a replacement for the clock module for the ones with the left hand clock and one for those with the right hand clock?

The whole allure in this in the beginning was in replacing the clock with a multi-function device that fit in the same spot.

[CTScott]

So are you planning on two versions? One being a replacement for the clock module for the ones with the left hand clock and one for those with the right hand clock?

The whole allure in this in the beginning was in replacing the clock with a multi-function device that fit in the same spot.

The right hand clocks can't really be replaced, since that display is non-removable and integrated into that display is quite a bit more than just the clock. You just have to figure out another place on the dash where it can be installed to still look OEM. Maybe there's something else that we can pop and replace on cars like yours.

[IsLNdbOi]

The right hand clocks can't really be replaced, since that display is non-removable and integrated into that display is quite a bit more than just the clock. You just have to figure out another place on the dash where it can be installed to still look OEM. Maybe there's something else that we can pop and replace on cars like yours.


Oh no, I was just wondering. My clock is on the left like all other 5-door '09s in the US.

[l2a3k2a3i]

Count me in. Ill buy one in a heartbeat!!1

[Revsson]

I like the idea of a temperature readout and a clock, and the other features.
Being that my car is still brand spanking new to me (10 months),:smile: I still haven't taken
anything apart on it. However, I might be forced to try a mod. :biggrin:

[enviri]

oh, oh, how about intergrating a scangauge in the cluster? im sure the LCD is detachable from the rest of the circuit board! get anotehr lcd size and stick that sucker somewhere :P

[yarstar]

I built a CAN bus interface this week and can read the PIDs (all of the standard OBD data), can read and reset stored DTCs, and can sniff the communication on the CAN bus between the ECM and the body ECUs.

I don't even know what any of that means, but you sure sound like you do! I am so excited about having a digital tach in my OEM cluster! Keep up the good work!
:headbang:

[*MAD DOG*]

Would be great to see a picture of a working prototype.

[Altitude]

I was looking at the clock today and I think it'd be better to just leave it as a single line instead of a double line. I think the characters would just be too small. Have you committed to a double line display?

[CTScott]

I was looking at the clock today and I think it'd be better to just leave it as a single line instead of a double line. I think the characters would just be too small. Have you committed to a double line display?

I have a few different one line and two line LCDs on order to experiment with. The clock digits actually only fill about half of the height of the opening, so it may be possible to use a 2 line display with characters nearly the same size as the clock's.

[yappari]

For the right hand clock clusters, there's no place within the cluster to mount it (without cutting plastic). My original thought with this whole thing is that it would really be for the tachless people. It started off as simply a tach in place of the clock and then the more I thought about it the more features that kept popping to mind.

Correct on the sensor probe for outside temp (although if I can figure out the CAN messaging for the A/C ECU, I can use it's outside temp probe and save people having to run a probe wire through the firewall).

I am making great progress on this. I built a CAN bus interface this week and can read the PIDs (all of the standard OBD data), can read and reset stored DTCs, and can sniff the communication on the CAN bus between the ECM and the body ECUs.

Are you by any chance using an Arduino for the microcontroller for all of this or are you programming your own PIC? I've recently started ordering some electronics to do something similar but probably not as sophisticated as what you're planning. I've read that an ELM preprogrammed pic is great for interfacing with the CAN bus, but it seemed a little costly and difficult to use. I asked an electric engineer where I worked (I used to work as a plastic engineer at the Corolla plant) and he said that I shouldn't have a problem interfacing with the ISO bus for Toyota cars if it's a cheaper/easier solution. I've got all the parts but the programming is still killing me even in this with the easy platform of the Arduino though, I'd like to keep hear about your progress though. Please keep us updated

[CTScott]

Are you by any chance using an Arduino for the microcontroller for all of this or are you programming your own PIC? I've recently started ordering some electronics to do something similar but probably not as sophisticated as what you're planning. I've read that an ELM preprogrammed pic is great for interfacing with the CAN bus, but it seemed a little costly and difficult to use. I asked an electric engineer where I worked (I used to work as a plastic engineer at the Corolla plant) and he said that I shouldn't have a problem interfacing with the ISO bus for Toyota cars if it's a cheaper/easier solution. I've got all the parts but the programming is still killing me even in this with the easy platform of the Arduino though, I'd like to keep hear about your progress though. Please keep us updated


I'm using two PICs within the design. One dedicated to the CAN Bus communication and the other for the user interface, direct RPM sampling and temp input.

The ELM PIC is way too expensive at $23 each. I built a code reader for ISO-9141 (K and L line comm) about ten years ago. The messaging for the CAN bus is very similar to OBDII, so most of my work thus far was redoing my hardware interface for CAN.

[yappari]

I'm using two PICs within the design. One dedicated to the CAN Bus communication and the other for the user interface, direct RPM sampling and temp input.

The ELM PIC is way too expensive at $23 each. I built a code reader for ISO-9141 (K and L line comm) about ten years ago. The messaging for the CAN bus is very similar to OBDII, so most of my work thus far was redoing my hardware interface for CAN.

WOW! you're programming your own CAN pic?? ok that's way beyond me. I took a look at doing that and it was too complicating; NRZ coding, bus arbitration, bit timing, etc, it's just too much, lol.
well it's expected, it's really more of a hobby thing and i'm no CS major. But i have one way I can help out.. I've got a few ideas for making a attachable design; hopefully a design that would cost >5bucks worth of laser cut parts and possibly less in bulk. If you want to go with larger 2x24 or 2x16 LCDs instead i think it would be easy to make a housing and attachment clips for it. it may be a little more costly through this route but i think it would make a world of difference

[advocate]

A design that I just thought of at the moment would be to have a progressive RPM bar that starts on one side of the display and move its way over. So instead of a digital numerical readout it would be a digital bar that would "fill" as the rpms went up.

If you could do that, and integrate the clock into the same display, I think you would deserve a medal haha. I had an idea that the clock would sit on the edge of one side, and the tach on the other. The tach would fill across the display and would overlap ontop of the clock if the RPMs got really really high. (If you're redlining, you're not worried about what time it is)

I MS painted this picture in about 2 minutes flat but I think it gets my idea across. Don't laugh too hard at my terrible drawing skills :bellyroll:

I blame my laptops touchpad :thumbdown:

[devinlamothe]

After thinking about it, I would probably still buy this and find a way to rig it into my cluster. If I had to disable the clock on the right side I would do it.

It's too awesome to pass up. :P

[CTScott]

After thinking about it, I would probably still buy this and find a way to rig it into my cluster. If I had to disable the clock on the right side I would do it.

It's too awesome to pass up. :P

At some point when you have nothing better to do, pop your cluster out, take the covers off and take a bunch of pictures. Maybe we can figure out a good place to integrate it where there's dead space and no circuit board.

[Gideon]

I think the left side in between the odo trip reset button and the tach would be a good option, but you'd have to cut a hole for the display in the plastic obviously.

I have to take mine out next week when I take my car in for warranty service so I'll take pictures if I have time.

[devinlamothe]

At some point when you have nothing better to do, pop your cluster out, take the covers off and take a bunch of pictures. Maybe we can figure out a good place to integrate it where there's dead space and no circuit board.

I can do that most likely next week, since whenever I clean my car I take my dash apart to make sure I get all the dust/dirt away. Plus I just like taking things apart! :wink:

But yes, it will most likely involve me dremelling a hole or something out of the plastic shroud in the cluster.

[CTScott]

So, I had Crashy's ECM fired up on my bench today as I was getting tired of having to go from my office to the garage to do some testing. I built a couple of circuits to make sensor data inputs to the ECM change, so I could vary the data (Speed, RPM, and Coolant Temp).

After successfully fooling the ECM with the 3 circuits, I realized that the speed one could be a fairly simple way of bypassing the speed limiter. Does anyone who races (legally) have an interest in testing that functionality?

[Altitude]

So, I had Crashy's ECM fired up on my bench today as I was getting tired of having to go from my office to the garage to do some testing. I built a couple of circuits to make sensor data inputs to the ECM change, so I could vary the data (Speed, RPM, and Coolant Temp).

After successfully fooling the ECM with the 3 circuits, I realized that the speed one could be a fairly simple way of bypassing the speed limiter. Does anyone who races (legally) have an interest in testing that functionality?

It's a good thing you're not a evil genius... or are you?

:clap: :biggrin:

[CTScott]

It's a good thing you're not a evil genius... or are you?

:clap: :biggrin:

Evil - Definitely evil.

[AlexNet0]

no, but Ill test it anyway, lol

[CTScott]

no, but Ill test it anyway, lol

Dang! With your NOS kit and the speed limiter bypassed there wouldn't be a safe moose anywhere in Maine.

[advocate]

Bypassing the speed limiter seems like an amazing idea to me... would certainly increase the value of the module as well...

You might have to just call the whole thing the "one mod wonder fix" for all Yarii without tachs :laugh:

[custom Lftback]

I'm definitely 100% for this idea and will buy one in a heartbeat! Keep up the great work CTScott!!

[CTScott]

Bypassing the speed limiter seems like an amazing idea to me... would certainly increase the value of the module as well...

You might have to just call the whole thing the "one mod wonder fix" for all Yarii without tachs :laugh:

I wouldn't build the speed limiter bypass into this module. It would be a separate stand alone module. The technology for it just happened to be an accidental benefit of me working on the YarGauge development.

[CTScott]

Update: I haven't had much free time to work on this in the past week or so, but I have been making good progress in the time that I find. I have the CAN Bus interface fully working (thanks to Garm for loaning me his ECM). It is very handy to have a fully functional ECM sitting on you desk, rather than having to run out to the garage to test code.

For the display piece, I am having a tough time locating appropriately sized LCDs with backlight colors that will match our cluster lighting colors. I am now seriously considering using a full color 1.2" graphics lcd instead of a simple 2 line character LCD. This will give me complete control over color and text size. It will also allow me to experiment with doing cool stuff like having an analog tach display.

This is the LCD I have ordered to experiment with. I will only be able to use half of the display height in the clock window area.

28498

28497

[IsLNdbOi]

Very cool. Is it possible to cut the clock window opening so that the whole thing would be visible?

My brother just got a 2010 Mazda3 sedan and it has a small LCD (I think 3" diagonal) on the dash. It displays info. like average MPG, average speed, etc..

[cali yaris]

I don't think people are going to want to chop up their cluster, but maybe I'm wrong. "plug 'n play" is the desire in general.

[CTScott]

I don't think people are going to want to chop up their cluster, but maybe I'm wrong. "plug 'n play" is the desire in general.

Agreed. With the way that the cluster is constructed, it would be difficult to open that area cleanly.

[advocate]

I think an OEM replacement is a great idea but the problem is that the clock is really damn small which is a limitation. I think an OEM integration would be cool but wouldn't want the features of your unit to be hampered because of a small screen CTScott. Just my opinion though.

Keep up the great work whatever you decide. This is a thread I love to follow.

[TinyGiant]

something small and easy to find a place for in the car wouldnt be bad..would be like our own scan gauge .. clock space integration would be sweet though :)

[Lewis]

I just bought a cluster from Australia for 250 dollars (I know I'm nuts!) on eBay with all LCD data display so I may or may not be an eventual customer for this CT depending on how the unit from OZ works out for me.

But I would like to add my 2 cents-

1. simplicity is a high priority- just give me tach- I wear a watch for time telling.
2. plugging it into the current clock slot is a must- OEM look is priority #1.
3. the bigger the LCDs - the better- much more important than any other feature- please no 2 line extra data- just the BIGGEST tach LCDs possible please.
4. must be part of OEM cluster- if I wanted to go with an external device I'd have a tach on my drivers side glove compartment door right now.

I might be in the minority on this but simplicity and tach functionality is what it's all about for me. We all owe you a big thanks CT!

The beauty of this technique is no problem with the odometer which needs to be reset by your dealer if you want to keep it correct when you switch clusters for one with a tach- assuming you can ever find one used- a new one was $520 from my friendly local Toyota dealer.

[1NZYaris1]

^ might want to send it to Scott if you have problems as it has all of the
display for mpg and such already there , just not wired .:thumbsup:

[Lewis]

:wink:And I'm sure CTScott would LOVE to work on an Aussie cluster in his spare time!

If I had seen this thread earlier I'd have waited for CT to do his thing- now even if my aussie cluster works- I'll still be begging my Toyota service depatment to reflash my cluster. They did it with my seat belt warning chime for free but it would have been SO much easier to just go with this approach.

We all owe a great big thanks for this deal- YarisWorld rules.

[CTScott]

I just bought a cluster from Australia for 250 dollars (I know I'm nuts!) on eBay with all LCD data display so I may or may not be an eventual customer for this CT depending on how the unit from OZ works out for me.

But I would like to add my 2 cents-

1. simplicity is a high priority- just give me tach- I wear a watch for time telling.
2. plugging it into the current clock slot is a must- OEM look is priority #1.
3. the bigger the LCDs - the better- much more important than any other feature- please no 2 line extra data- just the BIGGEST tach LCDs possible please.
4. must be part of OEM cluster- if I wanted to go with an external device I'd have a tach on my drivers side glove compartment door right now.

I might be in the minority on this but simplicity and tach functionality is what it's all about for me. We all owe you a big thanks CT!

The beauty of this technique is no problem with the odometer which needs to be reset by your dealer if you want to keep it correct when you switch clusters for one with a tach- assuming you can ever find one used- a new one was $520 from my friendly local Toyota dealer.



I am really looking forward to seeing if the Aussie cluster works. My money is on that it will.

As for the Yargauge, this thread has been handy for doing market research. I like hearing peoples' opinions and ideas. I definitely intend on having user configurable options, like miles or km, one or two line display, etc.

[*MAD DOG*]

:wink:And I'm sure CTScott would LOVE to work on an Aussie cluster in his spare time!

If I had seen this thread earlier I'd have waited for CT to do his thing- now even if my aussie cluster works- I'll still be begging my Toyota service depatment to reflash my cluster. They did it with my seat belt warning chime for free but it would have been SO much easier to just go with this approach.

We all owe a great big thanks for this deal- YarisWorld rules.

Lewis,

You should start an Aussie Cluster Thread. I'm sure if it works it will become a sticky. :w00t:

[1NZYaris1]

i hate to say this , and hopefully i am wrong , but the
Ausie / NZ cluster is angle at the US passengers side
it might not be vissable from the US drivers side ,
Best case is that the US mounting Brackets are differant .
Best of luck and keep us informed :thumbsup:

[DevilGirl]

My biggest gripe with the clock is that it doesn't display when you have the key turned to accessory only, you have to turn it to ON so you can get the readout. Pain in the arse when you're sitting there waiting for the train to arrive, listening to music, and you want to see what time it is, you have to turn the key on instead of just looking up... GRRR! Stinkin electronics!

[Lewis]

i hate to say this , and hopefully i am wrong , but the
Ausie / NZ cluster is angle at the US passengers side
it might not be vissable from the US drivers side ,
Best case is that the US mounting Brackets are differant .
Best of luck and keep us informed :thumbsup:

Now - yet another thing that could go wrong!

I agree that's a real possiblity with the RHD layout- and believe it or not I did think of it- but thought maybe even if it's wrong the mounting might be modify-able.



I think it's a 50-50 at the very best but what the heck- I thought it was worth a try both for the appearance of the face which I like very much, and the fact it would most certainly be unique if it did work out.

Lewis

[Astroman]

Hell, I'm interested in bypassing the speed limiter. I might be down for this too, even though I have a scangauge already.

[Lewis]

I fell guilty that I'm intruding on this thread- I'll start a new one on DIY maintenance- OZ CLUSTER

[*MAD DOG*]

I fell guilty that I'm intruding on this thread- I'll start a new one on DIY maintenance- OZ CLUSTER

Lewis,

You should start an Aussie Cluster Thread. I'm sure if it works it will become a sticky. :w00t:

I think you should read this guys posts. He knows what he's talking about. :cool:

[goku87]

OK. So far it looks like I'll keep the clock function. The other function that I am thinking of adding is inside and outside temperature.

I will also be experimenting with 1 line vs 2 line LCDs to see what will fit in the slot that the clock peeks through. the slot is actually about 1 5/8" x 5/8", so it may be possible to squeeze a 2 line by 8 character LCD in there, which would allow the clock or temp to be displayed simultaneously with one of the other items.

Also, the RPM measurement will be done directly (via the Tach input wire to the meter), rather than through the CAN comm with the ECM. This will make it more responsive than the devices that get it second hand from the ECM.

was looking at the hole and it doesn't seem super big for the two-line display to be able to have the same size digits as what's already in there. :(

[justjesus]

After successfully fooling the ECM with the 3 circuits, I realized that the speed one could be a fairly simple way of bypassing the speed limiter. Does anyone who races (legally) have an interest in testing that functionality?

I wouldn't mind taking another trip to El Mirage for top speed runs (it's legal).

[CTScott]

I wouldn't mind taking another trip to El Mirage for top speed runs (it's legal).

Cool! When I have a chance I'll build up a test unit. I realized recently that I can do a reverse test initially to make sure it works. By reverse test I mean fooling the ECM to think that the car is doing 130MPH when it is actually only doing 25.

[Vitz RangaaaH]

Ooo can't wait, ill be setting money aside for this.

[justjesus]

Cool! When I have a chance I'll build up a test unit. I realized recently that I can do a reverse test initially to make sure it works. By reverse test I mean fooling the ECM to think that the car is doing 130MPH when it is actually only doing 25.


LMAO - I was thinking you'd be driving in reverse!! Glad you cleared that up.

[CTScott]

Update: Getting close!

I am making good progress on the YarGauge development and am getting close to being ready to cut a production printed circuit board that will allow me to package it to fit where it is intended to go. Right now I have three separate prototype circuit boards, tied together, handling the various functions.

On of the last "data" related pieces I have been working on is the fuel economy (MPG) piece. Last night I did a test run to make sure that my code was functioning properly and captured the data to do some after the fact analysis on. Here's a plot of speed (MPH) vs. fuel economy (MPG) from a 4 mile test run last night. The graph really doesn't have much to do with the YarGauge, but I thought it was interesting enough to post.

I started capturing data about 1/4 mile from my house, going down a long steep hill, as I was specifically interested in catching a DFCO event.

Then I sit at a stop sign for a minute or so, waiting to make a left. Then, I drive about half a mile before making a left, a quick right, and a left (the three low bumps). Then I cruise up a long hill, which has a couple of level off points (seen by the DFCO events). I then make a rolling stop (low bump towards the end), a right turn, and then cruise down a gently sloping hill, before finally stopping.

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[TinyGiant]

thats pretty sweet

will there be functionality to download this data from the unit you will be selling.. scratch that.. that i will be buying!?

[CTScott]

thats pretty sweet

will there be functionality to download this data from the unit you will be selling.. scratch that.. that i will be buying!?

Hmmm. After playing with the data last night I was thinking that it would be cool to offer that feature. I'll have to see how that fits as I work on cutting the PCB and figuring out the packaging. The interface would be USB, so I could probably squeeze in a mini usb jack, and then you'd run a USB cable from the back of the cluster to someplace where you could plug it into your laptop.

[TinyGiant]

if that was a $10-15 increase in price option i'd still do it :)

that would be an awesome feature.

[advocate]

That is pretty damn cool CTScott. Gotta start saving for this awesome gadget if it's getting close to being finished.

[TinyGiant]

is there stock i can buy now in CTscott Corp?

lol I want to get in cheap :)

[Lewis]

This will be a great Christmas gift for members to get for themselves from CTScott!

[Kioshi]

CTScott is the Santa Clause for Yaris World :)

I may end up keeping my stock cluster in case i want to swap back and forth between Scott's modded RS cluster and Scott's replacement clock module on stock cluster.

[Lewis]

Jingle Bells........Jingle Bells

..................oh what fun it will be to ride in a Yaris with a Yargauge!

[PatrickJohnson]

i want it now.

[anubisx99]

i want it now.

+1:laughabove::biggrin::thumbup:

[Mistry]

Looks good and you are making real progress!

Have to say that there are some really gifted people on here.

Keep up the amazing work!!!

[justjesus]

Neat info on that graph!
Keep it going, CT.

[CTScott]

Neat info on that graph!
Keep it going, CT.

I need to add a software interface for grabbing GPS data from my little USB GPS, then I could plot fuel economy vs location and change in altitude. That would let the hypermilers optimize their routes.

[POORSHA]

This is coooool, How many atations will it get so I can cancel my cable?

[enobmort42]

this is pretty cool. following!

[tk-421]

I need to add a software interface for grabbing GPS data from my little USB GPS, then I could plot fuel economy vs location and change in altitude. That would let the hypermilers optimize their routes.
There's already an open-source approach to this that you may be interested in checking out:
http://icculus.org/obdgpslogger/

[CTScott]

There's already an open-source approach to this that you may be interested in checking out:
http://icculus.org/obdgpslogger/

That's awesome. I might have to use that.

[tk-421]

I've had a few chats with the developer (chunkyks), who is very approachable:
http://www.mp3car.com/vbulletin/obdii-gps-logger/

[Stoln]

What about getting the guts to make the canadian cars right side cluster work like it says it should, it has temp, avg miles per gallon, etc. They are hard to see but if you look at it in the right light you see they are there just not working. European modeles have atleast the temp. working, maybe a sacrifice for us Canadian HB owners. I would love a outside Temp. I have been trying to find a way to get the cluster to work like this for a while and have had no luck. Damb those European cars, get all the fun stuff and we have to duplicate it here......lol.

[CTScott]

What about getting the guts to make the canadian cars right side cluster work like it says it should, it has temp, avg miles per gallon, etc. They are hard to see but if you look at it in the right light you see they are there just not working. European modeles have atleast the temp. working, maybe a sacrifice for us Canadian HB owners. I would love a outside Temp. I have been trying to find a way to get the cluster to work like this for a while and have had no luck. Damb those European cars, get all the fun stuff and we have to duplicate it here......lol.

Does the Canadian one have a separate display area for the clock, temp and MPG (like the European/Australian digital ones do), or is that part of the display with the gas gauge and odo?

[Ivory]

Yes! I will purchase. (Would also like to keep clock.) Thank you CTScott

[metalshark]

I'm developing a display kit for GadgetGangster.com. It will be a two board kit that sandwiches the Propeller micro-controller board. I only have one of the boards back from Expresspcb.com (see direct image link). I'm still designing the second board.http://i351.photobucket.com/albums/q443/scloyd_01/PropDtach.jpg
Currently the analog display has 20 leds but for every four you take away you get one more digital readout. Give me a shout as to what functions you want on the second board and we will incorporate the correct chips. I'm still designing the custom display. Some of you saw my early BS2 prototype that was too expensive.
This version is based on the eight-core Parallax Propeller mP. I want to add an outside air temperature function to the second board. For those of you that require a centigrade readout that would be one more constant in software. The second board already has the digital speedometer driver on it. Correcting for different tire sizes would be a matter of adjusting a constant against your GPS unit. Again the difference between MPH an KPH is just a constant in software.

[Ivory]

Are these still in the works?

Happy Holidays!

[CTScott]

Are these still in the works?

Happy Holidays!

Yes. They won't be ready to go under your tree, but save your money for just after the new year. I am off for a couple of weeks starting next week, and that will give me the time I need to wrap it up. The complete proto will be going in my car next week, and the production proto will be going into Lewis' car, just after the holidays (he volunteered to be a beta tester).

[AlexNet0]

^If you ever need another tester, let me know!

[Ivory]

Thanks! Will be anxiously waiting!

[dean_park]

Is there a pre-order list? I would like to get on it if there is one.

[CTScott]

Is there a pre-order list? I would like to get on it if there is one.

I haven't built a list, but once I put them into production, I'll be able to build them up quickly to fill orders.

[hatchbackkid82]

Sorry but i'm being a lazy ass right now, so this is a digital tachometer , does it do anything else?

[hatchbackkid82]

Nevermind

A while back there was a discussion about converting the clock on the cluster to a digital tach. I have been exploring this a bit more and am looking at creating a replacement module for the clock that would have an 8 character display and would allow you to switch between the following functions (using the same push button that is used currently to set the clock):

1. Tachometer (RPM 9999)

2. Diagnostic trouble code read/reset (DTC 9999) (If more than one code is present it would scroll between the stored codes). Holding the button for 5 seconds would clear the stored code(s).

3. Water Temp (WT 999F) or (WT 999C)

4. Battery Voltage (VOLT 99.9)


And, probably a few more. Maybe even MPG (instant and average), if I can figure out how to calculate those from the available data.

It would remember the last display choice and F or C for temp.

Installation would require popping the cluster out, removing the clock module (a separate chuck held to the back of the cluster with some tabs), disconnecting the clock connector, replacing the clock's circuit board with mine (pop a couple of tabs and remove two screws), reconnect the clock connector to my module, and tap four wires onto the other cables going to the cluster.

Target price would be $75. The question is at that price, would there be enough interest to make it worth my time?

[CTScott]

Right now I have the following programmed:

1. RPM (displayed as a number or a bar graph)
2. Clock
3. Fuel Economy (MPG)
4. Ambient Temp
5. Coolant Temp
6. Intake Air Temp
7. Display / Clear DTCs (check engine light)
8. Battery voltage.

If there are additional data pieces that people would like to see, let me know and I'll add them before I go to production.

One option that I will be building in is a USB interface for connecting a laptop for those that wish to do data logging. The PC software will be a reasonably priced option that will be offered within a couple of months after the release of the unit itself.

[hatchbackkid82]

Oil temperature?

[CTScott]

Oil temperature?

Unfortunately, the Yaris doesn't have a sensor for oil temp.

[Kioshi]

Just out of curiosity CTScott.....there wouldn't be any way to modify this onto my Vitz RS cluster, now would there? I'm really intrigued by the other functions you've accommodated for this module.

Or if you're module can function as a backup odometer if the original odometer can't be solved on the RS cluster.... :iono:

[CTScott]

Just out of curiosity CTScott.....there wouldn't be any way to modify this onto my Vitz RS cluster, now would there? I'm really intrigued by the other functions you've accommodated for this module.

Or if you're module can function as a backup odometer if the original odometer can't be solved on the RS cluster.... :iono:

I'm still trying to figure out a solution for it for people who have clusters with a tach. I'd like to find an alternate mounting place, which doesn't require modification of plastic.

[cali yaris]

1. RPM (displayed as a number or a bar graph)
2. Clock
3. Fuel Economy (MPG)
4. Ambient Temp
5. Coolant Temp
6. Intake Air Temp
7. Display / Clear DTCs (check engine light)
8. Battery voltage.

That is more than enough. I would have paid for just a tach. :smile:

[47_MasoN_47]

I'd still be interested in one of these even if I couldn't get it to go into the existing cluster. I have a GPS hanging off my window already, so it wouldn't bother me to just scotch tape the thing to my GPS lol. Anything that gives me more information about what's going on in the car than just the MPH and RPMs will be an improvement.

Function over form all the way here.

[YarisSedan]

is there going to be a version for the sedans =)

[CTScott]

is there going to be a version for the sedans =)

We'll figure out some way to make it Sedan friendly. You sedan people miss out on too many toys.

[arunto]

what's ETA on production?

[CTScott]

what's ETA on production?

Mid January.

[dean_park]

Mid January.

any chance some early production models will be complete this week? Prob not, but I'm in Rhodey and driving back to MO next week. Figured CT is close :)

[CTScott]

any chance some early production models will be complete this week? Prob not, but I'm in Rhodey and driving back to MO next week. Figured CT is close :)

Most likely not. I am targeting getting the production prototype installed in my car this week for a final shake-down before going to full production.

[dean_park]

cool... just figured I'd ask since I'm in the neighborhood. I don't make it out this way too often anymore.

[dean_park]

Hi CTScott, How is prototype and beta build so far? Best of luck!

[CTScott]

Hi CTScott, How is prototype and beta build so far? Best of luck!

It's getting there. With the wife and kids on vacation at the same time as me, I didn't get as much done as I wanted.

Here's a teaser of what it's looking like. This week the production proto will be in my car, so I will be able to grab some installed pics and video:

31030

[kustom play]

wow

that look great! I cant wait for the final version

how will this install as far as hooking up for the temps?

[dean_park]

that's so sexy I need to change my shorts... great work!!!

[CTScott]

wow

that look great! I cant wait for the final version

how will this install as far as hooking up for the temps?

Installation will be fairly simple. Included with it will be the tap splices needed for the 7 connections. 5 Connections will occur at the cluster and two (for the outside temp sensor) will be made at the A/C Amplifier, which is under the dash, by the gas pedal.

[IsLNdbOi]

So this is still supposed to replace the stock clock module in the instrument cluster? Looks good.

[CTScott]

So this is still supposed to replace the stock clock module in the instrument cluster? Looks good.

Correct. Also, you will have the display color choice of orange (to match 09-10) or white (to match 06-08). Also, the clock and outside temp can be turned off (via a configuration switch bank on the back of the unit) for those who so desire.

[jdms]

any estimated time when these will be available?

sorry to keep beating a dead horse

[devinlamothe]

Looks great! I will definitely have to figure out a way to integrate this into my dash, as I do have the Canadian model with a tach, and the clock is part of the fuel display.

BUT, I will still be getting one of these.

[CTScott]

any estimated time when these will be available?

sorry to keep beating a dead horse

I expect to be shipping by the end of January. I have the production build parts on order.

[POORSHA]

would you like to take payment so we can start lining up?

[CTScott]

would you like to take payment so we can start lining up?

Not yet. I don't like to take people's money until I am ready to ship.

[goku87]

I'm way excited for these even though my yaris has gone to yaris heaven lol.

[kustom play]

yea im going to pick one of these up, you said it was going to be a code reader as well?

[CTScott]

yea im going to pick one of these up, you said it was going to be a code reader as well?

Correct (reader and resetter).

I am calibrating the temperature sensor input on my car (and on Crashy for comparison) right now.

[kustom play]

very cool

i cant wait to get one!

[mr9865]

so cool!

[bzinn 1]

Wow,this is probably the coolest idea I have seen done in years for any car.....you sir are a Saint......finally a tach for the car....yes.

[yarstar]

CTScott is tha MAN!!! Can't wait. Thanks again for doing this.

[Lewis]

we all owe Scott a big THANKS!

[Lucas13]

This looks awesome I really want one! Great Job CTScott!!!

[RedRide]

I'm impressed! :clap:
I want it! :smile:

[kustom play]

yea I am really excited about this, i really cant wait for it to get done!

[CTScott]

Here's another teaser - Mounted in my 09 with the orange LCD:

31114

31116

[advocate]

How does the unit install to the car Scott? Does it read from the OBD2 port?

[CTScott]

How does the unit install to the car Scott? Does it read from the OBD2 port?

Once the full production units are complete, I'll post the install pictures, but basically: You unplug the clock's connector, pop the clock module out, and pop the YarGauge in, in its place. I realized tonight that only 3 tap splices will be necessary, as I can have the clock's power connector plug right into the YarGauge. The three taps are for CAN communication (two taps on the right cluster connector) and one to the AC amplifier for the outside temperature (which is easily accessible by the gas pedal). It uses the same switch lever as the clock as well.

It communicates with the ECM via the CAN bus, but it grabs it at the cluster, so you can still have a scangauge or other device use the OBD port.

[ezhacker1]

just too cool for words

[advocate]

And what about clusters with the clock on the other side? Will compatibility be similar?

[RedRide]

I like that it will be able to maintain the stock, orange color. :thumbsup:

I do have one question ...
I noticed that in the last pics, the cluster brightnees is turned up to what seems to be to max but the modual seems a bit dimmer than the other displays.
If you were to turn the brightness down a bit like at night, will the new modual still be as visible as the rest of the cluster?
Will the new modual indeed be able to be dimmed along with the cluster?

[CTScott]

I like that it will be able to maintain the stock, orange color. :thumbsup:

I do have one question ...
I noticed that in the last pics, the cluster brightnees is turned up to what seems to be to max but the modual seems a bit dimmer than the other displays.
If you were to turn the brightness down a bit like at night, will the new modual still be as visible as the rest of the cluster?
Will the new modual indeed be able to be dimmed along with the cluster?


Right now I am not using the dimmer feed, so the display would be the same brightness with headlights on or off. Now that it is in the car, that's one thing I'll experiment with to determine if dimming is needed (I have a feeling it won't, as the backlit LCD is not as bright as the speedometer).

[CTScott]

And what about clusters with the clock on the other side? Will compatibility be similar?

I'm still trying to figure that out. The ones with the clock on the right, are either LBs with the cluster with the tach, or are sedans. In both of those cases the odometer and fuel gauge are part of that display, so I can't really replace it. For those, I am trying to figure out another mounting place that would still have the OEM integrated look.

[YarisSedan]

Is there still going to be a sedan version?

[RedRide]

Right now I am not using the dimmer feed, so the display would be the same brightness with headlights on or off. Now that it is in the car, that's one thing I'll experiment with to determine if dimming is needed (I have a feeling it won't, as the backlit LCD is not as bright as the speedometer).

This brings up another concern.
Since it is "not as bright......
Often in bright, anbient light, the stock gage cluster is hard to read. Is this also a prblem with the new modual?
Perhaps abient light does not effect it as much?

Is there an easy way to conect it to the dimmer feed?

[devinlamothe]

Question: Can the temperature display read in celsius as well as farenheit?

[CTScott]

Question: Can the temperature display read in celsius as well as farenheit?

Yes. A switch bank on the back allows configuration of options including metric vs. US standard.

[advocate]

I'm still trying to figure that out. The ones with the clock on the right, are either LBs with the cluster with the tach, or are sedans. In both of those cases the odometer and fuel gauge are part of that display, so I can't really replace it. For those, I am trying to figure out another mounting place that would still have the OEM integrated look.

A possibility would be to sell two versions then?

1) Integrated as a clock in a small unit

2) Integrated via a single DIM unit like a scanguage?

Just an idea! Keep up the great work Scott.

[custom Lftback]

Wow, i can't wait to get this! applause to you CTScott for a brilliant idea and execution!

[arunto]

unit looks nice....i can't wait till it comes out. would we use the current push button on the cluster to change between functions?

[joshpjost]

I am interested in how you'd incorporate it into the sedan! I'll buy.

[CTScott]

unit looks nice....i can't wait till it comes out. would we use the current push button on the cluster to change between functions?

Yes. It will use the same push button to change modes and set the clock. Programming for the one button user interface has been one of the most difficult aspects of this, but I wanted to avoid making people drill holes for extra switches.

[devinlamothe]

Yes. A switch bank on the back allows configuration of options including metric vs. US standard.

Sweet. Sorry if this was already answered way back.

[cdydjded]

Right now I have the following programmed:

1. RPM (displayed as a number or a bar graph)
2. Clock
3. Fuel Economy (MPG)
4. Ambient Temp
5. Coolant Temp
6. Intake Air Temp
7. Display / Clear DTCs (check engine light)
8. Battery voltage.

If there are additional data pieces that people would like to see, let me know and I'll add them before I go to production.

One option that I will be building in is a USB interface for connecting a laptop for those that wish to do data logging. The PC software will be a reasonably priced option that will be offered within a couple of months after the release of the unit itself.

Just found this post, count me in on one. I do have a question, would it be possible to add a programable shift light feature? For example, if I was wanting to shift @ 6200RPM the display would flash when the programed RPM is reached? BTW what you are doing is a great idea, keep up the good work.

[CTScott]

Just found this post, count me in on one. I do have a question, would it be possible to add a programable shift light feature? For example, if I was wanting to shift @ 6200RPM the display would flash when the programed RPM is reached? BTW what you are doing is a great idea, keep up the good work.

Hmmm. Shift light function would be easy to add. The only thing is that it might not be the ideal place for one peripheral vision wise, while launching.

[cdydjded]

Yes I agree with you, if you can add it I think it would be a good option. Also you mentioned you could remove the speed limiter, again some people might be interested in that also.

[kaly5]

Hi all,

New to the forum here.

CTScott - this one cool project you are undertaking. It is great enough to make me join the forum! Count me in for one of these. Thanks for your great work.

[Revsson]

Looking good CTScott!
With these tap splices, will it be easy to put back the old unit, in case I
would sell the car? :iono:

[CTScott]

Looking good CTScott!
With these tap splices, will it be easy to put back the old unit, in case I
would sell the car? :iono:

Yes. You'd pop them off and put a small piece of tape over the nick in the insulation.

[RedRide]

Looking good CTScott!
With these tap splices, will it be easy to put back the old unit, in case I
would sell the car? :iono:

Why remove it if you sell it?

I suspect that any new owner would like the mod also. :smile:

[IsLNdbOi]

... and it probably wouldn't work on other cars unless you plan on getting another Yaris if you sold your current one.

[DenverDave]

After reading this thread it appears the YarGauge will not work on my 2010 3-dr manual, which has a tach on the left.

[CTScott]

After reading this thread it appears the YarGauge will not work on my 2010 3-dr manual, which has a tach on the left.

That's correct, since the clock is not a separate module, like on the tachless ones. I am trying to figure out where the YarGauge could be integrated to have the OEM look for tach equipped liftbacks and sedans.

[goku87]

Oh that sucks. I was totally going to buy one but didn't know the new ones came with a tach lol.

[CTScott]

Oh that sucks. I was totally going to buy one but didn't know the new ones came with a tach lol.

For 2010 all manual transmission LBs come with the tach. Autos still do not.

[devinlamothe]

Still want me to take some pics of the inside of my cluster? I have one with a tach - just tell me what you need a pic of and I can do it tonight.

[CTScott]

Still want me to take some pics of the inside of my cluster? I have one with a tach - just tell me what you need a pic of and I can do it tonight.

I actually have one on my test bench. I don't see being able to mount it within the tach cluster without modification, so I am looking for someplace outside of the cluster. For example, one thought is to mount it in place of one of the center AC vents. I am open to suggestions.

I obviously could mount it in a small enclosure, that you can put anywhere (like the scangauge), but that diminishes its value versus products like scangauge.

[devinlamothe]

I actually have one on my test bench. I don't see being able to mount it within the tach cluster without modification, so I am looking for someplace outside of the cluster. For example, one thought is to mount it in place of one of the center AC vents. I am open to suggestions.

I obviously could mount it in a small enclosure, that you can put anywhere (like the scangauge), but that diminishes its value versus products like scangauge.

Alright then. I am going to look tonight to see where would be a good place to mount it (for me anyway).

One question though: since we can't replace the clock module, is hooking it up going to be more difficult? IE: are more spliced required?

[CTScott]

Alright then. I am going to look tonight to see where would be a good place to mount it (for me anyway).

One question though: since we can't replace the clock module, is hooking it up going to be more difficult? IE: are more spliced required?

You'd have 3-4 more wires to tap:

Ground, constant power, switched power, and possibly dimmer.

To install the proto on my 09 w/out tach, I only had to tap one wire (outside temp sensor), as I realized that the two can bus connections could be made to two test points on the back of the cluster.

[IsLNdbOi]

Does the '09 5-door LB have a built in temp. sensor? When I installed my CIPA rear-view mirror w/ compass, temp. and map lights, I had to install a temp. sensor. I clipped that to the bottom-most grill on the front bumper.

[CTScott]

Does the '09 5-door LB have a built in temp. sensor? When I installed my CIPA rear-view mirror w/ compass, temp. and map lights, I had to install a temp. sensor. I clipped that to the bottom-most grill on the front bumper.

Yes. All Yaris with AC have it. No aftermarket device would interface to it though, as it isn't universal enough.

[kustom play]

im really excited to see the final product and to get it installed!

[devinlamothe]

I was thinking of putting it in the plastic covering by the wind-shield washer lever - you know, the one that covers the hole for the push start button?

I could get a rectangle shape laser cut, then laser cut a piece of thin plexi-glass to glue onto it, then put the screen below. That way the wires can run through the hole, and I could still see it while driving.

Not the best solution but I think that is where I am going to place mine.

[goku87]

For 2010 all manual transmission LBs come with the tach. Autos still do not.

About time, but I wanted all the other cool functions too lol. Can't have everything I guess? lol

[advocate]

I actually have one on my test bench. I don't see being able to mount it within the tach cluster without modification, so I am looking for someplace outside of the cluster. For example, one thought is to mount it in place of one of the center AC vents. I am open to suggestions.

I obviously could mount it in a small enclosure, that you can put anywhere (like the scangauge), but that diminishes its value versus products like scangauge.

Scott, your product is 50x cooler than the scanguage and developed IN HOUSE SPECIFICALLY for people who own Yarii. That makes it more enjoyable and rewarding to own and use.

For example when people get in my car I proudly tell them that some crazy CT electrical engineer fabricated up a switch for my airbags.

This is a great project and you shouldn't fear the scangauge because yours is going to be way better!

Also, as an owner of a tach, I would like to see a version of it fit under my single DIMM head unit or as an AC vent replacement, both are great ideas.

[goku87]

Also, as an owner of a tach, I would like to see a version of it fit under my single DIMM head unit or as an AC vent replacement, both are great ideas.

Good idea! :thumbsup:

[rytis]

Awesome work CTScott, it's looking amazing :) :respekt: for this

[CTScott]

Update: 1/20/2010 - Final design review and testing:

After installing the proto in my Yaris and driving around with it for a week, I found that bright sunlight was a major problem. This time of year, most of my driving is either in the dark or on overcast days, so it took a few days to encounter the worst case conditions.

After speaking with some display manufacturers about the issue, I was able to find a different type of display that is far more sunlight readable. I explored many options, including many that would have doubled to price of the product. The display I finally chose fits better within the space, so it is not recessed, as the original had to be. Also, the text is black on white or orange (other colors will be available as well), so the display is similar to the fuel gauge, rather than the original clock display.

31264


Here is a list of all of the current features. If there are any additional requests let me know ASAP, as I am preparing to cut the final version of the circuit board.

1. Clock and outside temperature on second line.

2. Display modes for top line:
a. RPM numeric
b. RPM bargraph
c. Fuel Economy (MPG)
d. Battery Voltage
e. Coolant Temp
f. Intake Air Temp
g. Fuel system status
h. Calculated Engine Load %
i. Throttle Position %
j. Speed
k. Number of stored DTCs
l. List of DTC's
m. Clear DTCs / Reset MIL (Check engine light)

3. Programmable Shift Indicator / Light - This optionally displayed feature will display an indicator between the time and temp on the second line. Considering the small size of the display, this feature will also have a 2 wire output that will drive your choice of LED, mounted wherever you choose.

4. Cruise Control Indicator - For those with 06-08 Yaris, who have done the DIY cruise control, this feature will display an indicator between the clock and temperature to indicate that cruise control has been activated. This will require a one wire connection to your DIY switches or OEM CC stalk.

5. Automatic Dimmer - The new display is much brighter than the original, so I found that I absolutely needed the dimmer feature.

6. Configuration options
a. US or Metric units
b. Time display - 12 or 24 hour
c. Shift light enable/disable
d. Cruise Control Indicator enable/disable

[hatchbackkid82]

Scott enough already!:biggrin:!!! All of YW can't wait anymore release it

[Mateo]

:thumbup: Wow amazing work, thanks for making this all happen and for making it at an affordable price. I would expect to pay a few hundred if this was offered from anyone else. Much respect my dude.

[127.0.0.1]

1) how does the user give it instructions ?

[squall_x]

This is just amazing! Can't wait for final product!!!

[CTScott]

1) how does the user give it instructions ?

All with the single button that you used before for the clock. Short press to change modes. Long press to set shift light in RPM mode, long press to set clock in any other mode.

[kustom play]

Scott,

On my dads car the other day he showed me a really cool feature. It tells him how many miles till empty.

Any way to add that in?

[CTScott]

Scott,

On my dads car the other day he showed me a really cool feature. It tells him how many miles till empty.

Any way to add that in?

It is very possible! It would just require tapping one more wire on the cluster connector. I think I'll have to add it as another switchable option (so those who don't want to deal with tapping another wire don't have to).

This would give two more screen - Gallons or Liters left (rather than black bars) and estimated miles left at current burn rate.

[kustom play]

very cool!

[yarstar]

This guy Scott is a genius! My money is READY! OMG this is gonna be so cool to have!

[IsLNdbOi]

Awesome! So would we be able to configure it to show our current fuel economy / mpg AND miles left to empty?

[CTScott]

Awesome! So would we be able to configure it to show our current fuel economy / mpg AND miles left to empty?

I only have 14 characters to work with, but something like this would fit:

MPG:9999 123Mi

[IsLNdbOi]

That would be cool. Also, for the fuel economy you'd just need two characters, right?

Like this:

MPG:xx

If someone gets triple or quad digit fuel economy, please let us all know your secrets! :tongue:

[Lucas13]

This is so awesome Scott you have covered everything needed and a lot more. You really went the extra mile by adding cruise control indicator, and all the other new things.

I like the new screen better. Can't wait!!! Can't wait!!!

[ezhacker1]

is fuel system status like how many gallons left?

[fmicle]

If someone gets triple or quad digit fuel economy, please let us all know your secrets! :tongue:

I'm sure I can get 99 mpg going downhill :smile: Technically, when the DFCO kicks in you get infinite mileage as long as the DFCO is on.

[Lewis]

A related issue to the Yargauge- In trying out the OZ cluster I ham fistedly broke the tabs on the front of the bezel trim and need a new one to make my dash look 100%. First off I want to warn Yargauge buyers to be VERY VERY careful removing the bezel as the front tabs are extremely fragile. If they break off on removal the dash loses the tight shuntline right in the front where it's most noticeable when you reinstall the bezel- so be careful guys. Secondly I wanted to ask if anyone knows if the bezel trim is the same on the sedan and hatch. There are always these parts available on eBay but most seem to be from sedans. Thanks for the help fellow Yargauge enthusiasts!

[CTScott]

That would be cool. Also, for the fuel economy you'd just need two characters, right?

Like this:

MPG:xx

If someone gets triple or quad digit fuel economy, please let us all know your secrets! :tongue:

It's actually fairly easy to hit 3 digits (even without DFCO kicking in). The scangaugeII displays 9999 when in DFCO mode. The YarGauge will display DFCO, rather than 9999.

[CTScott]

A related issue to the Yargauge- In trying out the OZ cluster I ham fistedly broke the tabs on the front of the bezel trim and need a new one to make my dash look 100%. First off I want to warn Yargauge buyers to be VERY VERY careful removing the bezel as the front tabs are extremely fragile. If they break off on removal the dash loses the tight shuntline right in the front where it's most noticeable when you reinstall the bezel- so be careful guys. Secondly I wanted to ask if anyone knows if the bezel trim is the same on the sedan and hatch. There are always these parts available on eBay but most seem to be from sedans. Thanks for the help fellow Yargauge enthusiasts!



The sedan and LB ones are different.

When removing the cluster trim, the key to not breaking the tabs is to pull the cluster trim with the radio surround. They separate much easier when off then when on the car, because of the angle required to gently pull the cluster's tabs out of the top of the radio trim. (I didn't figure that out until about to 10th time I had my dash apart).

[IsLNdbOi]

It's actually fairly easy to hit 3 digits (even without DFCO kicking in). The scangaugeII displays 9999 when in DFCO mode. The YarGauge will display DFCO, rather than 9999.

Ah I see. I'll have to read that DFCO thread. I saw it on one of the forums before and it was always being bumped, but I never did go into it.

Anyway, I'll take whatever you can do with the MPG / mile-to-empty simultaneous display. :wink:

I was always jealous that my Dad's Hynundai had this feature, but my Yaris didn't.

[Lewis]

Thanks Scott- I envisioned a run on bezels when the YarGauge hit the streets.

:-)

[andru47]

Around when can we expect this to be done?

[CTScott]

Around when can we expect this to be done?

Very soon. I expect to be taking orders and shipping by the second week of February at the latest.

[RedRide]

Excellent ! :thumbsup: :smile:

[joshpjost]

Any ideas for applying the Yargauge to the sedan versions? I'm still trying to think of an external location that would be effective.

[CTScott]

Any ideas for applying the Yargauge to the sedan versions? I'm still trying to think of an external location that would be effective.

Based on feedback from others, I am thinking that I will offer two packaging options for Sedan / tach-equipped Liftbacks.

The two will be:

1. A panel which replaces the left center vent grill.
2. A single DIN plate (for those who have replaced their OEM radio with a single DIN radio).

[goku87]

1. A panel which replaces the left center vent grill.
2. A single DIN plate (for those who have replaced their OEM radio with a single DIN radio).

Alrighty! :thumbsup:

[devinlamothe]

My money is ready to leave my pockets.

[dean_park]

Hi Scott,
For the mi/km to empty feature, I think the cars that have this built in average this. Most times when the mpg feature is installed in the car, it has two screens instantaneous and average. I think the mi/empty is based on the rolling average so the value doesn't increase based on acceleration/cruise/coast/idle, etc. I'm not sure if it's possible in the controller you are using, but if so, can it be based on an average?

Doesn't matter... I'm still gunna buy it and I can ignore the value while accelerating.

[CTScott]

Hi Scott,
For the mi/km to empty feature, I think the cars that have this built in average this. Most times when the mpg feature is installed in the car, it has two screens instantaneous and average. I think the mi/empty is based on the rolling average so the value doesn't increase based on acceleration/cruise/coast/idle, etc. I'm not sure if it's possible in the controller you are using, but if so, can it be based on an average?

Doesn't matter... I'm still gunna buy it and I can ignore the value while accelerating.


I was working on the interface to the fuel level wire last night. and was thinking about that. I agree that the data needs to be averaged, otherwise the miles until empty would bounce all over (from 80 miles with a full tank while goosing it, to infinity when in DFCO).

[127.0.0.1]

great video of the first steps needed on removing the front plastics
to get to the gauge cluster.

http://www.youtube.com/watch?v=nBTIJLk-EZo

[goku87]

Just lookin for an update.

[CTScott]

Just lookin for an update.

Just waiting for the final revision of the circuit boards to come in. The latest rev adds the fuel level in gallons/liters and range until empty.

[POORSHA]

with all the revisions will this unit be able to do my daughters math homework ?

[kustom play]

cool im excited to pick one up!

[CTScott]

with all the revisions will this unit be able to do my daughters math homework ?

I think so. Accuratizing of the fuel gauge data has even required the use of some calculus.

[fmicle]

Sorry if this is either too late or stupid, but is it possible to get the air-to-fuel ration and the ignition timing?

And what's the refresh rate or response time for this thing?

[cowboy]

:thumbup::thumbup::help::help:hi CTScott

can the YarGauge be converted to Metric Canadian units like km's & such ....if so i really like to buy one ...thanks

looking also to adapt my laptop & tower PC to become a temp. OBD11 scanner , what can u do here CTScott

[CTScott]

:thumbup::thumbup::help::help:hi CTScott

can the YarGauge be converted to Metric Canadian units like km's & such ....if so i really like to buy one ...thanks

looking also to adapt my laptop & tower PC to become a temp. OBD11 scanner , what can u do here CTScott

Yes, it will be configurable for US/Metric units.

A USB laptop interface will also be an option for the YarGauge. The laptop interface will provide data logging capability of all of the parameters that the YarGauge displays, plus as I figure out more Toyota specific things (like perhaps being able to enable or disable the seatbelt chime), those features will be added to the software for the laptop interface.

[CTScott]

Sorry if this is either too late or stupid, but is it possible to get the air-to-fuel ration and the ignition timing?

And what's the refresh rate or response time for this thing?

Any software only additions are still possible at this point. The hardware is frozen, but the SW is not.

Air to fuel ratio is not a standard PID for OBD, but the ECM does monitor it. If I can figure out how to make the ECM tell it to me, then I can add it.

Ignition timing advance is a standard PID, so that one is an easy add.

Right now I am running with the refresh rate at 4x per second (2x that of the scangauge). I can go wayyyy faster, but then the values become a blur.

[fmicle]

Any software only additions are still possible at this point. The hardware is frozen, but the SW is not.

Air to fuel ratio is not a standard PID for OBD, but the ECM does monitor it. If I can figure out how to make the ECM tell it to me, then I can add it.

Ignition timing advance is a standard PID, so that one is an easy add.

Right now I am running with the refresh rate at 4x per second (2x that of the scangauge). I can go wayyyy faster, but then the values become a blur.

Oh man, if I were living close by, I'd be begging you to let me assist you... even if that meant only bringing you coffee and donuts :wink:

[Mateo]

This has became one of my favorite threads to check. One question I did have, is this going to be a one time production run or will they be available past the fist run?

[KCALB SIRAY]

wow, 14 pages to read oh brother lol. Wanna make it easy for me Scott? Any chance of one with A/F and Boost in the mix of ideas for this in the future. Or have I stepped in a pile of words already spoken? Thanks.

[CTScott]

This has became one of my favorite threads to check. One question I did have, is this going to be a one time production run or will they be available past the fist run?

It will continue to be available after the first run.

[CTScott]

wow, 14 pages to read oh brother lol. Wanna make it easy for me Scott? Any chance of one with A/F and Boost in the mix of ideas for this in the future. Or have I stepped in a pile of words already spoken? Thanks.

A/F was just asked a couple of posts above. It is a maybe depending on if I can figure out the CAN command to get the ECM to give it to me (as it isn't a standard OBD PID). Boost would be a no, as it requires adding a pressure sensor.