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Thread: The Connected Car 2.0 - I'm back at it.

  1. #11
    FLAC
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    Wasn't getting notifications! Missed all these posts!

    Quote Originally Posted by SaiLong View Post
    Hey Paul,

    I may give you a run for your money......
    Do it. More development on linux is what we need. You hiding a worklog for this project somewhere?


    Quote Originally Posted by RipplingHurst View Post
    Interesting stuff...subscribded.

    Have you thought about Android tablets?
    While Android tablets are cool... I don't want my ride to live on hacks and I don't want to be stuck in the fenced android environment. I don't exactly have a team of android developers to help me out.

    Quote Originally Posted by daclothe View Post
    He could just run pandroid on the pandaboard.

    http://www.youtube.com/watch?v=YH5wJVtQHe8
    Not that pandroid is lacking some important features. Namely GPS.

    Quote Originally Posted by Ryven View Post
    You can bet I'll be watching this thread for developments.

    Glad to see you continuing to push the envelope, Paul!
    Thanks man.

    Quote Originally Posted by tripzero View Post
    welcome back paul. I just came to this site from the pandaboards website, lol. A few issues you may run into... support for resistive egalax screens in Linux is terrible. It's even worse on ARM. (Yes, that includes android). That's my biggest hang-up with the pandaboard, an otherwise decent board, but we can't get it to run with many of our touchscreens.

    That said, I hear there are xorg.conf tweaks that can make it work. I know a guy who got his lilliput to work with the beagleboard-xm. Also, maybe you have a touchscreen with a different controller that works? nasa, is your screen still available on the market?
    Interesting... my lilliput screen that I won at afkfest last year worked out of the box with the ubuntu 11 beta on the pandaboard when I tried it a couple of months ago. My big issue was getting it to the right resolution since they changed how xorg.conf works in ubuntu 11.


    Quote Originally Posted by tripzero View Post
    There are a few people that have meego core running on the pandaboard and there are many pushing the pandaboard as a candidate for future MeeGo IVI ARM development platform.
    I've played with meego quite a bit september through november. I was trying to like it, but it left a lot to be desired.

    Quote Originally Posted by tripzero View Post
    Finally, are you planning on going it alone on the software this time? It'd be cool to collaborate on stuff to make it useful to us other geeks.
    Not going it alone. Before, the major reason I was all fenced-in was because I wasn't coding at a level of quality for others to benefit from and I just wanted to get things done fast. Note that I've remade the fusion brain application, etc. Hopefully I'll write a wrapper for the fusion brain 6 this week or next week which will definitely be useful for everyone on linux... and windows too for that matter.


    I'm just getting all my parts ordered and then I'll be ready to start putting the electronic in the car. Need to rebuild the trunk. I'd ideally have everything in the car by the end of june. Once I at least have the pandaboard in the car, I'll get more serious about software.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  2. #12
    licensed to kill - FKA kev000
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    tripzero's Avatar
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    MeeGo 1.2 is much improved over what was available last year. As you know, open source moves fast. That's interesting you got your touchscreen to work out of the box in ubuntu 11.04beta. I tried it on my desktop and my igep (both with 11.04 final) with my xenarc screen and it wouldn't calibrate correctly. Others are apparently having the same issue.

    I saw on your website that you made a python app for the fusion brain. I'm surprised to hear that fbd was too slow? I'm curious how high resolution data you needed... There are a couple things we can easily do to fix it. fbd solves a major problem in linux and that is how do we multi-plex access to the fusion brain to multiple processes. I'm interested to hear how you solved that and the speed issue in your implementation.

    I know you already have a pandaboard. I was just checking out the snowball today. Looks like it one-ups the pandaboard in just about everything. Comes with sensors too!

    cheers,
    Former author of LinuxICE, nghost, nobdy.
    Current author of Automotive Message Broker (AMB).
    Works on Tizen IVI. Does not represent anyone or anything but himself.

  3. #13
    FLAC
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    Quote Originally Posted by tripzero View Post
    MeeGo 1.2 is much improved over what was available last year. As you know, open source moves fast. That's interesting you got your touchscreen to work out of the box in ubuntu 11.04beta. I tried it on my desktop and my igep (both with 11.04 final) with my xenarc screen and it wouldn't calibrate correctly. Others are apparently having the same issue.
    Never actually tried to calibrate it since I never actually got the resolution right. This was a while ago, the board has been sitting in it's box for a few months as I didn't have time to play with it while the semester was wrapping up.

    Quote Originally Posted by tripzero View Post
    I saw on your website that you made a python app for the fusion brain. I'm surprised to hear that fbd was too slow? I'm curious how high resolution data you needed... There are a couple things we can easily do to fix it. fbd solves a major problem in linux and that is how do we multi-plex access to the fusion brain to multiple processes. I'm interested to hear how you solved that and the speed issue in your implementation.
    One of the bigger issues in performance was the DBUS. I needed to get it out of the picture. It was eating 30+% cpu on the sheeva plug. A big problem was also the fact that I couldn't guarantee the values of each output with FBD when making subsequent calls on different threads so the were being set repeatedly. Also, setting them individually was a performance burden and taking samples also proves to be rather inefficient. Finally, setting each output individually killed it. FBD can be fast, but it becomes slow when I bandaged it on my end to fix reliability issues which meant polling inputs and writing outputs at the same time. I was polling inputs individually, and setting outputs individually. So that meant that in any given second, nearly 30 read/writes were happening. Although, in python, if I make the simplest possible program, I can take 1000 samples in about 3 seconds. Try doing 1000 communications that fast through the dbus.

    Quote Originally Posted by tripzero View Post
    I know you already have a pandaboard. I was just checking out the snowball today. Looks like it one-ups the pandaboard in just about everything. Comes with sensors too!
    Snowball looks pretty cool. This is why buying tech products sucks.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  4. #14
    Maximum Bitrate nasa's Avatar
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    PaulF,

    Look on the 1.2 Meego thread -- I posted a crappy video of 1.2 running in my car. Check it out (it is updated from 1.0/1.1)

  5. #15
    FLAC
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    Heres the escort qi45 in its temporary location. Pretty cool that it has the option to show a volt meter when theres no radar around. The other option is for it to just say "Highway" haha.


    Quote Originally Posted by nasa View Post
    PaulF,

    Look on the 1.2 Meego thread -- I posted a crappy video of 1.2 running in my car. Check it out (it is updated from 1.0/1.1)
    I saw that just after I posted! I didn't get a chance to watch the video yet though. From the text it seemed like you were a bit unsatisfied though. I need to take it for a spin.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  6. #16
    Maximum Bitrate nasa's Avatar
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    PaulF,

    Your right, it's not where I was hoping it would be at this point. But it's coming along...

  7. #17
    FLAC
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    Got the radar detector in and modded it for audio output: http://www.mp3car.com/hardware-devel...-detector.html
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  8. #18
    FLAC
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    Quote Originally Posted by tripzero View Post
    That's interesting you got your touchscreen to work out of the box in ubuntu 11.04beta. I tried it on my desktop and my igep (both with 11.04 final) with my xenarc screen and it wouldn't calibrate correctly. Others are apparently having the same issue.
    Hey so at the time of writing that it worked, I hadn't tried to calibrate it. Now I have it working great. I added this to the top of my /usr/share/X11/xorg.conf.d/10-evdev.conf file.

    Code:
    Section "InputClass"
            Identifier "evdev touchscreen catchall"
            MatchDevicePath "/dev/input/event5"
            Driver "evdev"
            Option "InvertY" "true"
            Option "InvertX" "false"
            Option  "SwapAxes" "true"
    EndSection
    Note that I'm matching the exact device path. I couldn't get any other way to work.
    Last edited by PaulF; 07-15-2011 at 08:21 PM.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  9. #19
    FLAC
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    Disclaimer: writing this post in a hurry/not proof reading more in-depth post will come with pics

    I've been sick the past 2 weekends so I've got a ton done without distractions.

    The weekend before last...
    I got Ubuntu all installed on the Pandaboard on an SSD drive. I figured out a lot I hadn't known the previous time I did this due to improved wikis. Throughout the week I played with it quite a bit. The biggest challenge was figuring out all the ways to deal with the touch screen both resolution, graphics accelerated drivers, and calibration. None of that was as easy as I thought it would be.

    Last weekend...
    I (depressingly) ripped out my old install. Saturday I spent the day at my friend's garage building the box for my two mtx 8500's. Box is so big that we had to actually build it inside the trunk. Then the challenge was arranging everything to fit. I needed to somehow fit:
    2x 2-channel rockford amps for the speakers [1ft x 1ft]
    1x JBL Equalizer [1ft x 1ft]
    4x mean-well power regulators [5in x 3.5in x 1in]
    1x tank battery [alarm system size]
    1x optima blue top - the 255RC one
    1x sears die-hard RV battery 130RC

    Needless to say, I got all the physical prerequisites for the Pandaboard to go in done. To get the pandaboard to turn on in the car, all I have to do is mount it, a few USB devices, and plug it into the 5 volt regulator.

    But software is slowing me down...
    Ubuntu ARM is really not looking so hot as a car pc platform. It's interface really lacks touch screen friendliness. Especially since the touch screen support is a little jittery.

    Right now I'm working on compiling meego for the pandaboard to see what I can get there.

    Hopefully if I'm remotely satisfied with meego, I'll put the pandaboard in the car this weekend. From there I'll have a forceful motive to get my fusion brain application done!

    Pics to come really soon... I took a ton of them, I just need to sort and resize them to post.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  10. #20
    Constant Bitrate
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    Have you found a viable GPS application for ARM? I can rattle off a list of reasons why NavIt and OpenStreetMaps is completely unusable. I was hoping that Android for Pandaboard would be better supported just so that I could make use of Google Maps Navigation but that's not the case.
    "You're just about as useless as JPEGs to Helen Keller" - Wierd Al

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