Chief Delphi - Android Driver Station

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Programming (http://www.chiefdelphi.com/forums/forumdisplay.php?f=51)

- - Android Driver Station (http://www.chiefdelphi.com/forums/showthread.php?t=129073)

Chiller

09-06-2014 16:47

Re: Android Driver Station

Quote:

Originally Posted by raystubbs (Post 1387406)

I got the video to work, I used dmaciel10123's idea to get it to work, it may not be very fast, I have no idea how it will work since I have only tested it on an emulator. Feedback is appreciated.

I just use a simple html document that loads the feed and if it times out then it displays a message, all with jQuery

Just load the html file into a string and replace {jquery} with the contents of a jquery library file and also replace {te} and {am} with teamNum / 100, teamNum % 100, and also replace width and height with the web views width and height and wallah!

Code:

<html>

        <head>

                <script type="text/javascript">{jquery}</script>

                

                <script type="text/javascript">

            var timeout;

            

                        $(function() {

                                $("#errordiv").click(reload);

                                $("#stream").click(reload);

                                

                                reload();

                        });

                        

                        function reload()

                        {

                                $("#error").text("Loading Camera...");

                                

                                $("#stream").attr("src", "http://10.{te}.{am}.11/mjpg/video.mjpg?resolution=640x480&fps=30");

                

                timeout = setTimeout(function() {

                    //Cam did not load

                                     

                    $("#error").html("Error Loading Camera<br/>Tap to Refresh");

                     

                    $("#stream").css({"display":"none"});

                    $("#errordiv").css({"display":"block"});

                }, 4000);

                                

                                $("#stream").load(function() {

                                        $("#stream").css({"display":"block"});

                                        $("#errordiv").css({"display":"none"});

                                  

                  clearTimeout(timeout);

                                }).error(function() {

                                        $("#error").html("Error Loading Camera<br/>Tap to Refresh");

                                

                                        $("#stream").css({"display":"none"});

                                        $("#errordiv").css({"display":"block"});

                         

                    clearTimeout(timeout);

                                });

                        }

                </script>

        </head>

        <body style="padding: 0; margin: 0;">

                <div id="errordiv" style="display: none; background: lightgray; height: 100%; text-align: center;">

                        <label id="error" style="position: relative; top: 40%;">Tap to refresh camera</label>

                </div>

                

                <img id="stream" width="{width}" height="{height}"/>

        </body>

</html>

m1506m

09-06-2014 19:59

Tried the app out tonight, I am able to connect and enable, but since we are set up for cheesy drive, and not tank, I can only go forward and backward. And after about a minute the connection turns off and I loose connection.

DavisC

21-06-2014 12:07

Re: Android Driver Station

After connecting to the Robot wifi and launching the app, does the app handle everything necessary with IP addresses (in other words, should it just work out of the box like that?)

guniv

21-06-2014 13:13

Re: Android Driver Station

Quote:

Originally Posted by DavisC (Post 1390639)

After connecting to the Robot wifi and launching the app, does the app handle everything necessary with IP addresses (in other words, should it just work out of the box like that?)

We've had to go in through Android's Wi-Fi settings and set the static IP ourselves.

raystubbs

23-06-2014 20:59

Re: Android Driver Station

Sorry for all the problems, some of them may have been caused by bandwidth taken by the video, which I haven't tested. I only have a kindle fire to test with and it worked perfect before I added the video code. I'm not in the U.S right now and don't have access to any robots. I will try to buy another device by the beginning of the school year, so I'll be able to debug for another device.

Reminder: This is an open source project, a pretty easy project, and my first android app. So anyone interested in trying their hand at android development this would be a good place to start.

tanogirl

29-06-2014 23:15

This might be a stupid question... but is there a trick to installing it? I have an Asus MemoPad and could get it to install but the app wouldn't open.

dmaciel10123

29-06-2014 23:51

Quote:

Originally Posted by tanogirl (Post 1391550)

This might be a stupid question... but is there a trick to installing it? I have an Asus MemoPad and could get it to install but the app wouldn't open.

Is it crashing or just not opening at all?

MatthewC529

30-06-2014 01:57

Re: Android Driver Station

Quote:

Originally Posted by tanogirl (Post 1391550)

This might be a stupid question... but is there a trick to installing it? I have an Asus MemoPad and could get it to install but the app wouldn't open.

Hmm thats interesting. There is really no way to get Log information in this case which is a problem... maybe I will try to create a Pull Request to get a logging system in place for issues like this.

If you can try running it and get LogCat information that would be awesome. It will report the exception if there is one and five us the exact processes leading up to and after the exception as well as the Stack Trace.

guniv

30-06-2014 04:15

Re: Android Driver Station

It may have something to do with his Android version. That sounds like an old device that prooooobably isn't supported very well.

Now that Android Wear watches are out, someone should make this app for it :D

dmaciel10123

30-06-2014 05:37

Quote:

Originally Posted by guniv (Post 1391574)

It could be the version or the IP. When I was trying to get the camera working the app wouldn't open if the IP had more than 2 numbers in a segment (ie 192.168.1.70) because of the way the all sets the team number from the IP. All depends on the way it's acting when they try to open it.

If they were able to install it though I don't think it's the android version.

tanogirl

30-06-2014 07:04

1 Attachment(s)

Its not the device, its less than 6 months old and running Jelly Bean- could that be the problem? And this is what I get when I try to open it Attachment 17136.

dmaciel10123

30-06-2014 09:44

Quote:

Originally Posted by tanogirl (Post 1391579)

Its not the device, its less than 6 months old and running Jelly Bean- could that be the problem? And this is what I get when I try to open it Attachment 17136.

Did you change the IP on your device before opening it? Go into the WiFi settings and long tap the network you're on. Tap on modify network and then check the "show advanced settings" option. Then change the IP Settings from "DHCP" to "Manual" or "Static", and change the IP to 10.12.34.6 and the subnet mask or gateway to 255.255.255.0

This may solve the crash but you'll lose Internet connectivity until you put the network back into DHCP mode.

To use it on a robot you'd change the 1234 in the IP to your team number, ie 10.35.25.6 for my team.

tanogirl

30-06-2014 12:00

Ohhh that was it! Got it open and it looks great! Can't wait to try it with one of our bots!

MatthewC529

30-06-2014 16:09

Re: Android Driver Station

Quote:

Originally Posted by guniv (Post 1391574)

Just to make this clear, the program as it is now is listed as supporting a Minimum API Level of 14. This means it will support Ice Cream Sandwich and Above. As it stands now, until it is changed because it can be even further lowered, devices that still run Honeycomb and Lower can NOT run the program. The Target SDK is 18 (Jelly Bean 4.3) but it should support anything between Ice Cream Sandwich and Android L.

Just making this clear since this means the App will (and there is nothing in the code to prevent it from doing so, Eclipse would let you know that) run on any Jelly Bean device.

raystubbs

01-07-2014 10:14

Re: Android Driver Station

Just so that everybody knows, there is code in the app so support joysticks, it should work with any joystick that you manage to connect to your device including OTG and bluetooth. This feature is untested, so I would appreciate feedback if you try any kind of joystick.

raystubbs

06-07-2014 15:09

Re: Android Driver Station

Quote:

Originally Posted by MatthewC529 (Post 1391564)

I now this is an older post, but just so people know there is an app on the android market called ´aLogcat´ that does allow you to get log info.

raystubbs

06-07-2014 15:17

Re: Android Driver Station

Quote:

Originally Posted by MatthewC529 (Post 1391564)

I know this is an older post, but just so people know there is an app on the android market called ´aLogcat´ that does allow you to get log info.

raystubbs

06-07-2014 16:31

Re: Android Driver Station

Quote:

Originally Posted by MatthewC529 (Post 1391564)

I know this is an older post, but just so people know there is an app on the android market called ´aLogcat´ that does allow you to get log info.

MatthewC529

07-07-2014 19:02

Re: Android Driver Station

Quote:

Originally Posted by raystubbs (Post 1392300)

I know this is an older post, but just so people know there is an app on the android market called ´aLogcat´ that does allow you to get log info.

Alternatives include CatLog, Logcat Extreme, Log Viewer and so on. Plenty of apps to this. Thanks for adding that on!

It wouldn't hurt to have a logging utility built in to the app though no? As an easily retrievable log file? A simple endeavor using Log4j. I have also been looking into the best way to retrieve a video feed, automatically changing and reverting the IP and keeping track of the Team Number between application instances. Just to make it more convenient without having to have people dig through the Network Settings to run it on their phone, it would simply be more convenient to have the app do it for you with sufficient permissions.

raystubbs

10-07-2014 09:18

Re: Android Driver Station

Quote:

Originally Posted by MatthewC529 (Post 1392405)

Yes, I've figured out all of this except efficient video. I just haven't taken the time to implement the features. This app was designed to be functional and light, but not super convinient. It was more a test run than anything. Right now I'm working on whan I want to be the final implementation of the app. One of the main complaints with the current one seems to be that it is not compatible with all drive systems. So on this other implementation I am going to add the other requested features, but also I'm adding a 'drag and drop' interface to customize the layout of the controls.

raystubbs

20-07-2014 01:23

Re: Android Driver Station

Published the app on google play to make it easier to download.

https://play.google.com/store/apps/d...erstation_lite

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