matt_gsxr
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| posted on 8/3/11 at 10:14 AM |
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fair enough. It was just one of those thoughts.
Just looking at that picture on my San Francisco now. It looks plenty big enough. The only problem would be the font size.
Some gauges need to have decent resolution (i.e. map, AFR, pulse width), but loads don't matter (e.g. is the temp sensor plugged in? have I got
some volts?). A benefit of the TunerStudio type design is that its already been thought about and will include most of what is needed, but there would
be considerable implementation effort.
Your plan to hardwire in v0.01 makes good sense.
MAP, AFR, RPM, and whether warmed or not and whether it is logging would pretty much cover it.
Now I need to think about buying a bluetooth serial adapter.
Matt
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scudderfish
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| posted on 8/3/11 at 10:24 AM |
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Please don't spend any money until I've actually got it working  If you're prepared to test I've got a spare BT-Serial
adapter I could lend to you.
Regards,
Dave
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ashg
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| posted on 8/3/11 at 11:00 AM |
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i think the only way to get more info on screen is to do away with the gauges and just show the numbers kind of like a digital watch display.
in theory if you root your android phone install the full jre you should be able to run the linux version of ts, not sure how you would get ts to use
the phones blue-tooth for the serial connection it would either require a code change in ts or a bit of hacking about with the kernel on the phone to
spoof the blue-tooth connection into thinking its a serial device so ts can see it.
if i had the time i would offer to help with a bit of coding, did java visual studio .net c++ etc at uni so wouldnt find it hard to get back into the
swing of it. unfortunately im up to my eyeballs with work at the minute.
have subscribed to this as im interested to see the progress.
[Edited on 8/3/2011 by ashg]
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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scudderfish
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| posted on 8/3/11 at 11:26 AM |
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I got TS running on my Nokia N900, but it relies on a native code library to interface to the serial port, and the UI is designed for PC sized
screens. In the end I took the Megatune C++ code for decoding the INI files and translated it to Java. Now it's a matter of connecting the
dots between data coming off either BT stack or a network socket, to the MT based guts to whatever UI components are currently displayed to a logging
engine.
The gauges really are just a bit of bling to see how it would look, my initial prototype was really just three labels and three numbers. Swapping
layouts at runtime is easy to do on Android, it's creating the on phone UI for creating or modifying layouts that is a PITA.
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TimEllershaw
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| posted on 8/3/11 at 04:38 PM |
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Have you had a look at Torque-BHP ?
(http://torque-bhp.com/)
Same idea, but reading from OBD port. We use it at work on a selection of HTC Android phones.
The interface is quite nice. May give you some ideas on what is readable / sensible.
Cheers
tim.
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scudderfish
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| posted on 17/3/11 at 02:11 PM |
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NumericControls
Playing with LCD alike displays. Not using dials gives me more room to play with, I could easily fit another 3 to the display above. Question is,
what other 3 would be on your 'must have' display ? Coolant temp, air temp and......
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scudderfish
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| posted on 17/3/11 at 02:19 PM |
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Something like this?
 
Description
Could do with another field just to balance out the display
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nuvolae36
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| posted on 17/3/11 at 02:19 PM |
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hey I found this thread by google, never thought that there were this kind of discussion here! 
I'm following. Need badly some kind of display device for my MS. Multiple physical gauges is a no no, LCDash is not produced anymore (and I
don't like it) and megaview is a little sh*tty 
Open a thread in msextra too, please, there are a lot of people that would like this and could help to test/build!
Phil (of Tunerstudio) is working on it too and he say something could be out for spring...
http://www.msextra.com/forums/viewtopic.php?f=122&t=34779&start=80
cheers,
I'm nuvolarossa on there
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scudderfish
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| posted on 17/3/11 at 02:26 PM |
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quote:
Originally posted by nuvolae36
hey I found this thread by google, never thought that there were this kind of discussion here!
I'm following. Need badly some kind of display device for my MS. Multiple physical gauges is a no no, LCDash is not produced anymore (and I
don't like it) and megaview is a little sh*tty
Open a thread in msextra too, please, there are a lot of people that would like this and could help to test/build!
Phil (of Tunerstudio) is working on it too and he say something could be out for spring...
http://www.msextra.com/forums/viewtopic.php?f=122&t=34779&start=80
cheers,
I'm nuvolarossa on there
Please don't ever rely on my software to replace physical gauges, I don't want that responsibility! You're also going to struggle
to find a device that can be read in direct sunlight. This is really a support project for the likes of TS or MLV and not intended to replace either
of them
I haven't posted on the msextra forum as I wanted to keep the noise down somewhat whilst I fiddle with this. Damn you Sergy! Once
I've got it running for a couple of people here, then I might talk about it in more than a whisper.
I'm aware that Phil is doing something, I'm doing this mainly to scratch an itch to do a bit of dev work that is dissimilar to my day
job.
Regards,
Dave
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scudderfish
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| posted on 17/3/11 at 02:37 PM |
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OK, I'm happy with this for now. I've added in spark angle, and a big 'Start Logging' button. It'll say 'Stop
Logging' if you currently logging data
 
Description
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matt_gsxr
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| posted on 17/3/11 at 02:55 PM |
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nice,
Those look good.
TPS might be useful (just as a debug tool), sync errors can be handy, battery voltage (is useful, if you have a rubbish alternator like me). It all
depends on what is going on, but I like the ones you have.
Does this actually get signals from anywhere, or is this a mock-up still?
Matt
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scudderfish
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| posted on 17/3/11 at 04:04 PM |
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Right now, this is mostly a mockup so I can play with layouts and colours. However it does connect to my MS simulator, probe it, and then load and
parse the associated INI file. I need to set up a timer to query the sim and then connect the returned values to the half dozen displayed
controls.
Regards,
Dave
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scudderfish
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| posted on 25/3/11 at 11:48 AM |
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It appears that I was converting the Megatune code, I had stubbed out a big bit that "I'd do later". It turns out later is now so
back into the guts with not a lot to show for it
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scudderfish
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| posted on 28/3/11 at 12:28 PM |
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MegaTune is quite a complex beast...
Given an INI file entry such as :-
accDecEnrich = { (engine & 0b00100000) ? tdePct : ((pulseWidth-injOpen) / (pulseWidth-accelEnrich-injOpen) * 100) }, "%" ; In
percent, centered on 100% meaning no correction.
It effectively compiles the statement into a datastructure that represents a stack based virtual machine and then 'executes' it at
runtime.
However the insidious differences between C++ & Java are making getting this to be a 100% faithful reproduction quite tricky. Tonight I'm
going to have a play around with embedding BeanShell and see if I can get that to do all the heavy lifting. It should just need a bit of
preprocessing on the statements to Javafy them, so the above becomes
accDecEnrich = (engine & 32) != 0 ? tdePct : ((pulseWidth-injOpen) / (pulseWidth-accelEnrich-injOpen) * 100);
The more I dig into this, the more I'm impressed with the work B&G did to produce the MS.
Regards,
Dave
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scudderfish
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| posted on 15/4/11 at 11:09 AM |
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Aha! Discovered that the bluetooth module I've got plugged into my MS is powerful enough to communicate with my desktop in the house. This
should make dev work a bit easier as I can talk with the real thing rather than messing around with the simulator.
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matt_gsxr
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| posted on 15/4/11 at 04:24 PM |
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quote:
Originally posted by scudderfish
Aha! Discovered that the bluetooth module I've got plugged into my MS is powerful enough to communicate with my desktop in the house. This
should make dev work a bit easier as I can talk with the real thing rather than messing around with the simulator.
But the simulator is more fuel efficient.
I got a bit lost at the beanshell, java, virtual stack, bit. Its good that one of us understands it 
Matt
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scudderfish
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| posted on 24/6/11 at 03:41 PM |
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This project isn't dead yet I've now bought myself an HTC Desire S, and it's making the development a lot easier. I'm now
communicating with the MS, and evaluating all the expressions in the associated INI file. Next major hurdle is to connect the internal numbers to the
controls on the display. Once that's done, logging to file should be straightforward. I did a side project for a friend for logging GPS
position, so I'll slide that code in as well so your MS log will contain location info as well.
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matt_gsxr
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| posted on 25/6/11 at 10:20 PM |
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Awesome news. I have built a speedo with an arduino, so hopefully I can send the speed into to the MS as an additional input, so GPS + speedo + MS
should mean pretty nice datalogging.
Looking forward to it.
Matt
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scudderfish
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| posted on 26/6/11 at 07:07 AM |
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quote:
Originally posted by matt_gsxr
Awesome news. I have built a speedo with an arduino, so hopefully I can send the speed into to the MS as an additional input, so GPS + speedo + MS
should mean pretty nice datalogging.
Looking forward to it.
Matt
Wow, and I thought _I_ was a geek Speed can come from the GPS. What would be fun would be phone accelerometer data, although I think that may
need some calibration to allow for the position the phone is mounted in the car.
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matt_gsxr
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| posted on 26/6/11 at 08:11 AM |
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My reasoning to consider adding direct speed information is that I think that speed from GPS is generally pretty poor.
I loaded up one of those apps for trackdays and logged whilst on a bus on the motorway. The speed wasn't very stable ranging up and down as
much as +/-10mph (the bus basically sits just below its speed limiter).
I am told that GPS can determine speed in two ways.
Either using the positions divided by time (simple but differentiation of position amplifies the errors).
or using doppler http://nujournal.net/HighAccuracySpeed.pdf which will be much more precise
I don't think phones do doppler speed stuff and have relatively low frequency basic GPS.
Accelerometer use is interesting idea. For it to work we would need to fix the phone in a single orientation and then combine the accelerometer with
the GPS either using a Kalman filter (if we need real-time) or something cleverer if we don't need real-time. I haven't googled on it,
but if the problem of velocity drift could be managed then it could work well. I am sure it has been done 1000 times before.
With a direct speedometer it would be easier.
Matt
p.s. I am at one with my inner geek
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scudderfish
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| posted on 2/7/11 at 09:53 AM |
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Comms started
Screenshot hot off my phone which is now talking to my MS and attempting to show numbers. The numbers are wrong (my car is sat in the garage with the
MS on, but the engine not running), but the major plumbing is now working
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matt_gsxr
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| posted on 3/7/11 at 09:00 AM |
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Awesome news
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ashg
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| posted on 3/7/11 at 10:50 AM |
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thats looking really sweet. if you want to do some testing on ms3 i can do it for you.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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scudderfish
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| posted on 3/7/11 at 05:27 PM |
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I need to get it working with my MS1 before I venture into other areas. I'd be interested in your INI file and an example log file though
please to throw into the test cases.
Regards,
Dave
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scudderfish
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| posted on 3/7/11 at 08:52 PM |
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Slight change in direction. My initial aim has always been for log capture. I've gone down a side street with heavyweight INI file processing
and expression evaluation that the full TunerStudio does. This has caused me no end of problems. What I've done tonight is cut out those code
paths and implemented the raw datalog documented here. These files can be
converted by TunerStudio into an MSL file for Megalogviewer to parse. I'm going to strip down the UI just to show logging progress for now, and
introduce the other stuff later when I've got a better handle on just how fast I can run this. I think accurate high resolution logging is more
important than eye candy.
Regards,
Dave
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