Challenge: Android Display Splitting - Java for Android App Development

This one goes out to the hardcore low-level android guys. I bow down to your awesomeness and mystique. I could really use a hand here... I promise I'll pay the knowledge forward!
Details in my StackOverflow post:
http://stackoverflow.com/questions/19462069/challenge-android-display-splitting
Basic goals:
-Intercept Android video output via HDMI, MHL, etc.
-If possible, increase the resolution to 150% of the original width (see why below):
-(See image below) The left half of the external screen needs to adopt the left 3/4 of the chosen output resolution, while the right half needs to adopt the right 3/4 of the chosen output resolution.
Thanks so much guys!
-omni
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omni_angel7 said:
This one goes out to the hardcore low-level android guys. I bow down to your awesomeness and mystique. I could really use a hand here... I promise I'll pay the knowledge forward!
Details in my StackOverflow post:
http://stackoverflow.com/questions/19462069/challenge-android-display-splitting
Basic goals:
-Intercept Android video output via HDMI, MHL, etc.
-If possible, increase the resolution to 150% of the original width (see why below):
-(See image below) The left half of the external screen needs to adopt the left 3/4 of the chosen output resolution, while the right half needs to adopt the right 3/4 of the chosen output resolution.
Thanks so much guys!
-omni
Click to expand...
Click to collapse
Hmm, this is an interesting one.
I would be surprised (without doing some extremely gnarly low level mucking about with ROMs and perhaps even the devices themselves) if you can send anything out of the HDMI which isn't the output of the screen.
So I guess this leaves you with 2 options
1 - render the desired format on the device itself, so that it can be spat out of the HDMI output (by rendering the video twice, offset)
2 - find some other way to output it
May need a few more details about your environment here.
My guess is that ideally you would like to view the video as-normal on the device, plug your device into a big screen and have it do the strange double image thing (maybe for some 3D type experience?)
Somebody mentioned ffmpeg on your Stackoverflow post which I can confirm is the way to do it if you need to do your own video processing. Typically that's what the various video players on the Play store use.
Be warned that it is non trivial and will involve C/NDK rather than Java.
Even then though, you're probably looking at option (1), since (2) is likely to require some hardware plugged into the external screen I think.
I am wondering, if this is for video, whether you couldn't just play the video twice in 2 VideoViews offset / overlapped as required ?
Doesn't fix your resolution requirement and may have a few problems with speed/syncing but I think worth a try to start with.
An S4 is 1920*1080 so that's not terrible output quality for a big screen.

PicomatStudios said:
My guess is that ideally you would like to view the video as-normal on the device, plug your device into a big screen and have it do the strange double image thing (maybe for some 3D type experience?)
Click to expand...
Click to collapse
Good guess It may not need to be an auto-detected swap when plugged in. A gui toggle would suffice.
PicomatStudios said:
May need a few more details about your environment here.
Click to expand...
Click to collapse
I'm going to PM you a few more details that shouldn't be public.
PicomatStudios said:
Somebody mentioned ffmpeg on your Stackoverflow post which I can confirm is the way to do it if you need to do your own video processing. Typically that's what the various video players on the Play store use.
Be warned that it is non trivial and will involve C/NDK rather than Java.
Even then though, you're probably looking at option (1), since (2) is likely to require some hardware plugged into the external screen I think.
I am wondering, if this is for video, whether you couldn't just play the video twice in 2 VideoViews offset / overlapped as required ?
Doesn't fix your resolution requirement and may have a few problems with speed/syncing but I think worth a try to start with.
An S4 is 1920*1080 so that's not terrible output quality for a big screen.
Click to expand...
Click to collapse
Good sir,
I really appreciate your well-communicated feedback. By no means was I expecting this to be trivial-- I certainly realize I'm getting into rarely traveled territory here. Your confirmation on ffmpeg concurrence then splitting as the order of feasible operations here would make it seem that you know what you're talking about. As these will be my first shots at this sort of thing, are there perhaps any helpful resources/reference materials you can provide me with?
You have my sincere thanks,
-omni

No problem, replied to your PM.
It may be that you'll end up needing an ffmpeg expert (which I'm definitely not!) however I've sent you some stuff to get the ball rolling - let me know if it arrives. Good luck!

PicomatStudios said:
No problem, replied to your PM.
It may be that you'll end up needing an ffmpeg expert (which I'm definitely not!) however I've sent you some stuff to get the ball rolling - let me know if it arrives. Good luck!
Click to expand...
Click to collapse
For the sake of the public knowledge, when the path forward is clear I'll be summarizing the thought process in this thread!
Huge thanks to this awesome guy

So just a follow-up for any curious readers. I settled on two custom VideoViews (overriding onMeasure()) in a relativelayout. They both play the same movie and I mute one of them. Directly after the CustomVideoView.start() calls for both, I call seekTo(0) to sync them up. If it turns out that they get unsynced over time, I could always have a Timer.scheduleAtFixedRate task that syncs them up every so often using seekTo. There may be better ways, and I'll certainly be improving upon this in the future. Huge thanks to @PicomatStudios for the initial ideas I got many kudos from my bosses and I owe them largely to him!

omni_angel7 said:
So just a follow-up for any curious readers. I settled on two custom VideoViews (overriding onMeasure()) in a relativelayout. They both play the same movie and I mute one of them. Directly after the CustomVideoView.start() calls for both, I call seekTo(0) to sync them up. If it turns out that they get unsynced over time, I could always have a Timer.scheduleAtFixedRate task that syncs them up every so often using seekTo. There may be better ways, and I'll certainly be improving upon this in the future. Huge thanks to @PicomatStudios for the initial ideas I got many kudos from my bosses and I owe them largely to him!
Click to expand...
Click to collapse
Sounds great - would quite like to see it in action !
Always good to get something working early I reckon, as you say it buys you a bit of kudos and time to make improvements.

Related

[GAME]Bantumi Diamond (Old Nokia 3310 Game)

My second game for Windows Mobile!!!
yay?
This is a remake of an old Nokia 3310 Game that I used to play all the time.
Good old days!
Explanation of the way the game is played:
http://en.wikipedia.org/wiki/Mancala
This game is made for 2 people to play against each other.
I might add a singleplayer if I have the time to!
Since everyone has their own rules for this game I will write them down real short:
When ending your "seeding" in a empty hole on the opponent's side you will capture a point.
When you end up in your own main hole you get an extra turn.
The opponent's main hole will not be skipped while "seeding"
There I hope I explained it well enough.
Any suggestions or bugs reports are more than welcome!
Enjoy gaming!
DEMO VIDEO: http://www.youtube.com/watch?v=cCSgZQZ-XMk
what, no screen?
not4you said:
what, no screen?
Click to expand...
Click to collapse
maybe you should try asking a bit more politely lol
mancsoulja said:
maybe you should try asking a bit more politely lol
Click to expand...
Click to collapse
"Screens or it didn't happen"
or
"Screens or GTFO"
Is that polite enough?
J/k Thanks for the effort!
Hi Freckle
could it be possible to get som screenshots please ?
And a single player version would be awesome !!!
Screen shots are a must, some users never put something on there phone without knowing how it will look
oh I totally agree, I would never put something on my phone without seeing a screenshot or a video of it.
Definitely not from an unknown developer like me
Video is uploaded, check my first post!!!
Can I be honest with you ?
The graphics are not really beautiful...., I would love to see it looks like a real wood one
I do love this game, I spent hours playing on it on my nokia and I also have a real one in my house
something like this would be definitely better
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cheers
hanackin said:
Can I be honest with you ?
The graphics are not really beautiful...., I would love to see it looks like a real wood one
I do love this game, I spent hours playing on it on my nokia and I also have a real one in my house
something like this would be definitely better
cheers
Click to expand...
Click to collapse
Seconded. Since that 3D dice app was cancelled (I was working on the graphics for that) this could be a fun project to take on. Give me a day and I can whip up something that's at least on par with the above screenshot - I'll try to make it look better .
Not everyone knows how to create apps like the one you showed us from the screenshot.
I appreciate your honesty, but I started giving C# a shot 2 weeks ago.
And I haven't ever made a 3d/graphical application before.
Also I'm not following a ICT/"Programming" education yet, have to wait 1 and a half years for that.
If someone could give me a push in the right direction, that would be appreciated.
***I think I have an idea to spice it up, give me some time.
mancsoulja said:
maybe you should try asking a bit more politely lol
Click to expand...
Click to collapse
sorry, was not my intension to bee impolite, if I it is SORRY. I'm just adding more text in the window because was "to short".
If Freckle got offended SORRY again.
I agree with the graphics I would like it more developed. Wy not use a genuine mancala:
Anyhow respect to Freckle for work and sharing
not4you said:
sorry, was not my intension to bee impolite, if I it is SORRY. I'm just adding more text in the window because was "to short".
If Freckle got offended SORRY again.
I agree with the graphics I would like it more developed. Wy not use a genuine mancala:
*pics*
Anyhow respect to Freckle for work and sharing
Click to expand...
Click to collapse
That's alright mate ;-)
I'm working on the board right now, the board is almost finished.
I'm trying to add some cool text that will look like it's sort of cut into the board.
The new board (without buttons)
now it looks better dude
Your on the good road
I just can't figure out how to get the picturebox transparent so I can put actual round images in it without having a white overlay.
Freckle said:
I just can't figure out how to get the picturebox transparent so I can put actual round images in it without having a white overlay.
Click to expand...
Click to collapse
I'd use a ImageButton with transparency set to true,
this should also help you "catch" the clicks
But IMHO I think it is better to complete the the coding prior to the cosmetics, I'd rather see a fully functional game which doesn't look that nice then a not working game which looks great.
with fully functional I meant including a single player version...
because that is the real challenge
Anyway I'm glad you started this thread, because I almost forgot about this great game. thank you
keep up the good work
Mr_Gee said:
I'd use a ImageButton with transparency set to true,
this should also help you "catch" the clicks
But IMHO I think it is better to complete the the coding prior to the cosmetics, I'd rather see a fully functional game which doesn't look that nice then a not working game which looks great.
with fully functional I meant including a single player version...
because that is the real challenge
Anyway I'm glad you started this thread, because I almost forgot about this great game. thank you
keep up the good work
Click to expand...
Click to collapse
I'm glad I could remind you of this game as it's an amazing game!
I choose to do the design first as that's what people mainly wanted.
After that I'll do my best to get the singleplayer working.
Thank you
One problem,
ImageButton is for ASP (Websites)
Any ideas?
Freckle said:
One problem,
ImageButton is for ASP (Websites)
Any ideas?
Click to expand...
Click to collapse
Maybe, but it can also be used in other development languages,
I use Basic4PPC to develop and there the control has already been created
http://www.basic4ppc.com/help/imagebutton.html
What application/language are you using?
Mr_Gee said:
Maybe, but it can also be used in other development languages,
I use Basic4PPC to develop and there the control has already been created
http://www.basic4ppc.com/help/imagebutton.html
What application/language are you using?
Click to expand...
Click to collapse
Microsoft Visual Studio
C#
I will code it in then, I probably have to put in "using System.Web;" and create the button manually
I'll try it when I get back from school.

[Graphics Design Contest] Pykl3 Radar Splash Screen

Congratulation to brkgnews for winning this contest. Very nice work!
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Original Post: http://forum.xda-developers.com/showpost.php?p=12146305&postcount=12
brkgnews - A
brkgnews - B
it's a paid application, why don't you hire a professional?
So you want someone to create content for your app for free, so you can sell it? At which point you will shamefully acknowledge the winner as "the sucker who did your work but you didnt pay?" Am I missing something here...
Thronesmasher said:
it's a paid application, why don't you hire a professional?
Click to expand...
Click to collapse
This is not a high volume application and we want a variety of art for users to vote on.
Lakers16 said:
So you want someone to create content for your app for free, so you can sell it? At which point you will shamefully acknowledge the winner as "the sucker who did your work but you didnt pay?" Am I missing something here...
Click to expand...
Click to collapse
There will be a $20 (USD) cash prize.. I've updated the original post.
-----------------------------------
If there are any more questions or concerns, please send a PM or email us so the posts in this thread are of entries and not cluttered with questions. Thanks.
might be harsh statement.but creating a flash screen thingy,without knowing the application logo/image thats in the drawer,is kinda hard.
because the might both be TO different from each other.
ghost010 said:
might be harsh statement.but creating a flash screen thingy,without knowing the application logo/image thats in the drawer,is kinda hard.
because the might both be TO different from each other.
Click to expand...
Click to collapse
They don't need to match, but if you would like you can enter in both contests.
One week left. No entries so far for the splash screen. We may extend this contest's deadline.
We have 5 entries for the logo.
You are asking something that requires:
1) AT LEAST one hour of work to put out anything good (usually a lot more though).
2) Decent artistic skills. Without any concept whatsoever, logo, icon, etc. the designer here needs to basically invent everything from the ground up.
3) High technical skills that usually come after years of experience.
People are happy to help out their fellow devs here, when it's a free project. But for something commercial, 20$ just ain't going to cut it IMO.
This is below the hourly wage for a decent graphic designer in most places.
Personally I'm a hobbyist in that department, and I'd be happy to spend a couple of hours trying to create something, but my time is quite expensive and 20$ is pretty far from worth it.
Just my opinion....
This is not a high volume application. We currently don't have the revenue to hire a graphics designer. We realize that this contest isn't ideal for everyone. We are looking for hobbyist or new graphic designers that want to get their name out there.
Some possible themes.. radar echos from the radar app, radar domes, radar rings, lightning, hail, tornadoes (or hook echos), pickles, L3, .. please no sweep lines.
Thank you brkgnews.
Original Post:
We are looking to upgrade our splash screen graphics. Submit your ideas and if you win you will get the $20 (USD) cash prize and will be credited within the program.
We are also having a contest for a new app icon. Find more info on the icon contest at http://forum.xda-developers.com/showthread.php?t=976234
Pykl3 Radar is an Android app that takes raw 8-bit level 3 radar data from the National Weather Service and renders it from the native format. There are no re-sized bitmaps and the flexibility of vector graphics illustrates the benefits.
Find more info on this app at pykl3radar.com
We need a landscape 1280x800, and a protrait 800x1280 version.
The preferred image format is PSD or PNG. Ensure that text is no closer than 15% of the width from any edge. The application title is "Pykl3 Radar". Bold Arial typeface is suggested, but not a strict requirement. Themes may make use of a pickle in the design. This is also not a strict requirement. Entries should portray a professional product as it will be used by various users from storm chasers to emergency managers to professional meteorologists.
The work must be your own. Winning contestant consents to artwork being used in the PYKL3 application, promotional material, web pages, etc. either as original or modified for the particular purpose of use. No additional royalties are extended to the winning contestant. Credit for artwork will be limited to the application PYKL3 Radar and may appear on other works without credit. Final acceptance of artwork is reserved by the author of PYKL3 Radar. We reserve the right to select a null winner in the contest. Questions and seeking of feedback is encouraged.
Entries are due by March 15th, 2011.
If you would like feedback before you post your entry, please contact via PM or email pykl3radar @ att DOT net.
Please post your ideas below and on March 15th we'll open a poll for voting and we'll announce the winner on March 25th, 2011.
Do you mind extending the entry date by 1 day, I would love to submit an entry or two to add some more variation to the competition!
Thanks a bunch!
Sincerely,
D3luSi0n4L

Motorola Xoom WiFi Review

Here is our review of the Motorola Xoom:
Overall, the Motorola Xoom performed very well and is a very good tablet. However with a price of $599 for the WiFi version, this is on the high side. In addition, we feel that the Xoom was rushed to the market. It is not complete. First, it launched without being Adobe Flash ready which is a key advantage over the iPad. However by the time we received our unit, Flash 10.2 was available on the Android Market so we installed it without a problem. Second, the micro-SD expansion slot is not useable but will be with a firmware update. Although the tablet has a large 32GB built-in memory, it should still have a working expansion slot. Third, the Xoom was not easily identifiable through two different Windows 7 computers. Windows 7 installed the necessary drivers but we still experienced some problems with the computer recognizing the Xoom.
The Xoom is the first table to run Android 3.0 (Honeycomb). Every other tablet manufacturer is probably keeping an eye on how well the Xoom does. This review did not concentrate on Honeycomb but we were impressed with its tablet-specific UI. It does the job well but it still needs to be improved upon. Our two main gripes with Honeycomb is 1) lack of a native file manager; and 2) lack of true task manager/switcher. Android is “better” than Apple's iOS because it can multi-task. However, Honeycomb still fails to easily switch open apps. RIM's PlayBook and HP webOS do this well so why can't Android? Even the Notion Ink Adam created an app switcher to easily change apps. Also there is a lack of tablet specific apps on the Android Market.
The Motorola Xoom performs well. If the price was not so high, we may overlook some of its weaknesses. It is a powerful tablet and the best non-Apple tablet currently on the market. We are giving it a 4.22 out of 5 points which is the highest score we have given a tablet. Many other Android tablets (at a lower price) will be launching this year so it will be difficult for Motorola to become a leader unless it reduces its price.
Click here if you wish to read the full review...
er
The Motorola Xoom does include a 5MP front facing camera and a 2MP rear facing. The rear camera takes good pictures and HD videos (see video of Additional Footage).
Click to expand...
Click to collapse
I class the front as the screen and the rear as the one at the back facing out... is the above correct?
I thought it was 5MP on the back and 2MP on the front?
http://www.androidguys.com/2011/01/27/motorola-xoom-specs-compared-original-ipad/xoom-vs-ipad1/
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rather spammy if you ask me. just a snippit from his own website... read more.
anyway, kinda weird that the droid x and archos 70 have such different cpu and gpu scores - they're both running the same 3630 and powervr SGX530.
The person has an interest in mobile gadgets and is trying to jumpstart his blog. Nothing wrong with that. The review is an honest effort, no matter what you may think of it.
@OP
Suggest to use more whitespace for better legibility, and shorter paragraph & sentences, aka newstyle writing. People online have very limited attention span. More pics would help illustrate and to make the body copy less dense.
On a tech basis, there are different aspects of system speeds: general performance (synthetic CPU benchmarks), web performance (browser benchmarks), screen response, multimedia performance, game performance (gfx benchmarks). Different CPUs have different strengths. For example, the Teg2 has strong general & game perf, but weak video playback, and screen responsiveness is lackluster. The last is probably hampered by the OS, but is worth noting, especially when comparing against a more polished device like the iPad 2.
Suggest you cover each aspect separately, since each can vary.
Keep up what you're doing, and ignore the riff-raff.
I think this is the wrong place to jumpstart his blog. We already had a million of reviews and a million of Ipad vs Xoom discussions. The least he could have done is to post the whole article on here and then a link to his blog.
That would be an idiotic way to do it. Online pieces typically have accompanying formatting & pics, which wouldn't translate to a text forum. This is the Internet. We use links now.
There's no difference between posting a review link from a personal blog as opposed to one from Engadget, which, last I checked, is a blog.
e.mote said:
That would be an idiotic way to do it. Online pieces typically have accompanying formatting & pics, which wouldn't translate to a text forum. This is the Internet. We use links now.
There's no difference between posting a review link from a personal blog as opposed to one from Engadget, which, last I checked, is a blog.
Click to expand...
Click to collapse
I can't see how this is an idiotic way of doing it. This thread contains no information. A blog contains 90% text, who cares about the formatting? If he would post his article we could comment and discuss it on here which is what this forum is about. If it is a well written article people would click on the link and subscribe to his blog.
There is no need for links to Engadget either. Posts on this forum are much more informative and authentic than any other review article out there. If i want to read review articles or look at pictures i type in motorola xoom into google. There is hardly a shortage. No need to spam this forum.
On another note, "our last review", "TabletConnect first reported" and a blog full of adverts doesn't really sound personal to me.
Thanks for the feedback both positive and negative.
@Lothaen You are correct. My error as it was a typo.
@e.mote I appreciate the support and feedback.

OFFICIAL OFF-TOPIC THREAD! :)

SAY WUT?!
AH. OK.
If you're looking for a place to chat - it's perfect place for you
Remember to follow the rules and have fun :laugh::laugh::silly::silly:
If this is an off-topic thread, let me start by posting something from verge.
The following photo was posted by Nilay Patel to prove that Note10.1 doesn't work functions properly.
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I might be bit out of touch here, so please do correct me. How on earth can someone find the answer to a function like that with 3 unknown variables? is it possible that it's a well known equation in physics that I am not aware of? I just can't think it's possible to find a answer just from there without any knowledge of relationship between these unknown variables.
I believe that Note's function is to understand what the user wrote. It did so, but wolframalpha couldn't solve the equation. This is expected in my view.
If I am right, it means that the Nilay Patel is trying too hard to legitimize his review of Note 10.1
hot_spare said:
I might be bit out of touch here, so please do correct me. How in earth can someone find the answer to a function like that with 3 unknown variables? is it possible that it's a well known equation in physics that I am not aware of? I just can't think it's possible to find a answer just from there without any knowledge of relationship between these unknown variables.
I believe that Note's function is to understand what the user wrote. It did so, but wolframalpha couldn't solve the equation. This is expected in my view.
If I am right, it means that the Nilay Patel is trying too hard to legitimize his review of Note 10.1
Click to expand...
Click to collapse
Lol It's been pointed out that he had his tablet on Power-Saver mode during the review. Who does that?
There's no answer for that obviously, it's just reduced if possible, which in this case is not. If there was any error it would be in Mathematica and the huge server farm they are using, which REALLY would be something
What if C.A.T. actually spelled........dog
Google Octane
Run the latest Google Octane benchmark:
http://octane-benchmark.googlecode.com/svn/latest/index.html
Also try comparing with other devices or other browsers you have.
what is this??
I'm working now on ROM for N8000 stay tuned guys
Greets
Off-Topic... Samsung got their arses handed to them yesterday by Apple. Damn.
How thorough is Android factory reset's data clear/wipe?
Hey, Android gurus.
I love my GNote. I am getting ready to sell my Lenovo Thinkpad Tablet. I've done the factory reset on it, but am wondering if that is considered an effective tool for removing data from the internal hard drive. Could someone easily resurrect my data if the factory reset is all I've done to clear it?
Thanks for insights.
JCHP
jchammerpants said:
Hey, Android gurus.
I love my GNote. I am getting ready to sell my Lenovo Thinkpad Tablet. I've done the factory reset on it, but am wondering if that is considered an effective tool for removing data from the internal hard drive. Could someone easily resurrect my data if the factory reset is all I've done to clear it?
Thanks for insights.
JCHP
Click to expand...
Click to collapse
I don't have an answer for you but the following link may help you to decide or see for your self.
http://www.wondershare.com/disk-utility/samsung-tablet-recovery.html
For anybody here who wants to know...
The livestream for the samsung unpacked event for tomorrow will probably be broadcasted in one of these links.
They probably going to show the new Note 2 phone version... and more.
http://global.samsungtomorrow.com/?p=17504
https://www.facebook.com/SamsungMobi...66547110058162
Enjoy.
The "RAWR" story!
The Samsung fanboy RAWR story:
The most rare SGS3 in the world!
http://techcrunch.com/2012/08/28/ra...s-the-internet-with-this-custom-galaxy-s-iii/
http://www.reddit.com/r/funny/comments/u3cjd/well_samsung_canada_has_won_me_over/
http://www.reddit.com/comments/yz6er
Any idea why I can't view attachments in Chrome? IE works fine.
hot_spare said:
Any idea why I can't view attachments in Chrome? IE works fine.
Click to expand...
Click to collapse
chrome works fine here...
ikon
hi!
it will be not about math but I must use picture.
In upper right corner its blue pen icon - WHAT IT'S FOR?
i thing i searching everywhere now.
Please help.
P.
neumannp said:
hi!
it will be not about math but I must use picture.
In upper right corner its blue pen icon - WHAT IT'S FOR?
i thing i searching everywhere now.
Please help.
P.
Click to expand...
Click to collapse
when that icon is highlighted (blue) it makes your screen accept only the S-pen input, will not let your fingers draw on the screen :good:
Check this new Note 10.1 commercial:
And new Google Glass video:
Was using the Note in the sun and it got me thinking. First, I wondered how long till amoled is used in the 10 inch tablets. Then, because of the reflection i thought, wouldn't it be great if they could produce a display that could double as a solar panel. Think about if the pixels could absorb the whole spectrum and just reflect the color that was needed for displaying the image on the screen. No glare and phenomenal power consumption. I'm know it's crazy, and maybe its maine's sweet greenery talking, but one can dream.
While I play on the tv wife decide to watch bright house tv on her note
Sent from my SPH-D710 using xda app-developers app

[APP] Android based RC car project - IOIO

Hello Everyone,
I am a Computer Science student at Montana State University, and have taken it upon myself this semester to develop a IOIO based R/C Car controllable by an Android to Android communication platform.
I have recently had a good deal of success with my prototype, and I have decided that it is mature enough that I can share it with this community. Please take a look at my Github repositories and my blog outlining the project details:
http://jimmyblaze.net/
https://github.com/Legomaniac
This is my first major Android project, and I have been learning as I go with this since there is no Android development class available at my University. I realize that some of my code may not be fully up to par with the Android standard, and I am looking forward to gaining input from more experienced developers. It has always been a goal of mine to either start my own open source project or a fork of another, and I believe this is the perfect opportunity to do so.
I think there is great potential in a collection of "shields" for the IOIO similar to the expansion shields that are popular with the Android platform. I have based my project on the concept of a "shield and app combo" that, when refined, could provide a "plug and play" experience in using the IOIO with hobby R/C equipment.
Any input you may have is greatly appreciated!
Sorry for the bump, but perhaps the Youtube video might entice some responses?
Legomaniac said:
Sorry for the bump, but perhaps the Youtube video might entice some responses?
*Sigh* It appears the youtube bbcode tags don't work, here is a link:
http://www.youtube.com/watch?feature=player_embedded&v=XPL0EDER498
Click to expand...
Click to collapse
In your video you said you still have to get Video streaming to work, well I've seen a video on youtube that shows a robot being controlled by an android phone, I'm sorry I wasn't able to find the video now, but if I find it I will send it to you.
Also I've looked a lot for an open source libraries to allow me video stream but failed to find. If you found any can you tell me please
By the way I'm on my graduation year studying Computer engineering
Hey, thanks for the response!
Yes, I do still intend to get video working, The closest thing I have found to an Android video stream "library" is the following open source app hosted on Google code:
http://code.google.com/p/spydroid-ipcamera/
The thing that is sad about this project is that the developer disable the client portion of the program, citing issues with MediaPlayer and VideoView not being configurable enough. I was hoping to use VideoView to display the stream from the Droid on the car, but if someone who can build an IP camera app can't do it, than it doesn't look very hopeful for me.
Legomaniac said:
Hey, thanks for the response!
Yes, I do still intend to get video working, The closest thing I have found to an Android video stream "library" is the following open source app hosted on Google code:
http://code.google.com/p/spydroid-ipcamera/
The thing that is sad about this project is that the developer disable the client portion of the program, citing issues with MediaPlayer and VideoView not being configurable enough. I was hoping to use VideoView to display the stream from the Droid on the car, but if someone who can build an IP camera app can't do it, than it doesn't look very hopeful for me.
Click to expand...
Click to collapse
check your inbox
This is awesome!
Keep an eye on the Portal...
Did you developed the virtual joysticks or used an existing library?
Regarding the video stream i think is kinda difficult. Are you planning to use an ip camera?.
Its nice that you are doing everything opensource. Cool project
Wow really good project here !
I also own a R/C car ^^
Do you have really instant response from remote to the car ? No lag ?
Do you think it is possible for an Android phone to communicate directly with the R/C car's receiver ?
Thanks a lot for sharing, gonna keep an eye on it
this is epic, great achievement mate!
That's so cool!
And maybe useful...I hope
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I've been planning to do this for several months, I have a lot of experience for a college student for radio frequency's, I finally have somewhere to start using these sources, I intend on using an F1 car, modified off course
Very cool. I race R/C cars weekly at my local tracks. This is pretty cool stuff. Resently one of buddies started work on a Android App for recording and reviewing our lap times after a race.
Here is one of my weekly racers:
very nice, I was thinking of doing something like this using a microcontroller and a serial to bluetooth converter, but I think this is even better.
finally some use for the xperia mini xD.
well you could run your app on the background and use any existing video streaming app for the video part.
Not sure if this hardware can help u or not.. We use this now with an Android app to program our speed control wirelessly using the bluetooth.... IPhone used wifi module.
http://www.speedpassion.net/en/productDetails.asp?p=SP000008&c=OPT
Sent from my SGH-I747M
So when are you sending it to Mars
But very cool.. Whats the range on it?
Holy crap! Here I was busy with schoolwork, not checking any of these posts and my video jumps from ~150 to over 7,000 views! Thanks for the awesome front page spot conantroutman!!
I have made quite a bit of progress on this project since I have posted this thread. I have switched the app to a service that runs in the background, and utilized the tools at developer.skype.com to integrate my app with Skype! I have driven it around the halls by the CS offices at my campus quite a few times, successfully piloting it several halls away without being able to see it, so, just with the Skype call.
I will make sure to post my updated video here as soon as I have time to get it together! Right now I have to go to work, but thanks for all the comments! If there are any questions that I haven't answered, sorry about that but I don't quite have time to look at them right now, tomorrow after I get off work I will take a look at what people have been asking and reply to the best of my ability.
Thanks guys! Thanks conantroutman!
To answer the question right above, right now I only have it working over wifi, so it's "range" is the area covered by the wireless network it is connected to. I hope to be able to refine it to a point that it could work over 4G, so it would have the ability to roam where-ever there are cell towers!
The source for the joysticks that I used can be found at the mobile-anarchy Google code page here: http://code.google.com/p/mobile-anarchy-widgets/
So, how does the android on the car interact with the electronics?
It's another phone right? via USB?
Roastmeat said:
So, how does the android on the car interact with the electronics?
It's another phone right? via USB?
Click to expand...
Click to collapse
It is with a IOIO board from Sparkfun electronics:
https://www.sparkfun.com/products/10748
The IOIO is an awesome product and the community surrounding it is very inviting and helpful. It is, in my opinion, the best way to have your Android device interact with hardware.
Legomaniac said:
It is with a IOIO board from Sparkfun electronics:
https://www.sparkfun.com/products/10748
The IOIO is an awesome product and the community surrounding it is very inviting and helpful. It is, in my opinion, the best way to have your Android device interact with hardware.
Click to expand...
Click to collapse
You said you use wifi, It doesnt seem that this board has wifi capabilities, what did you use?

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