RPi Information Screen for Official Raspberry Pi Display

[elParaguayo]

The first problem should be easy enough to fix. Just add

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from kivy.uix.scrollview import ScrollView

at the top of the weather screen.py file.

As for the second problem, I don't know. I've no idea how the screensaver works. I don't have one running on mine.

[walter_1]

Thanks for the quick answer adding the code to the weather screen file made it work.

Asking the right questing gives you the right answers
The screen-blanking problem has a solution:
in the terminal you can type

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setterm -powersave off -blank 0 

or as I did, to prevent screen-blanking I wrote a little shell-script which will be called when
initlevel 5 is reached (every time at boot)

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#! /bin/sh
### BEGIN INIT INFO
# Provides:          ssvoff
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs
# Default-Start:     5
# Default-Stop:      0 1 6
# Short-Description: stops sreenblanking
# Description:       prevents setterm to blank the screen after the default time
### END INIT INFO
setterm -powersave off -blank 0

The header is needed for the program insserv. For more informations on starting programs
automatic at boottime use this post https://www.linuxquestions.org/question ... on-237339/
which helped me. Or this https://packages.debian.org/squeeze/insserv if you want detailed inforations on insserv.

The terminal screen blanking topic is explained http://www.cyberciti.biz/tips/linux-dis ... blank.html here.

[elParaguayo]

Glad you fixed your screen blanking. I have to say, it's not something I've come across before.

I run the screen on the raspberry pi display and it's never blanked once for me.

[brendanssound]

Is

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sudo apt-get install mopidy-spotify

working for everyone else anymore?

Keeps telling me package not found. Has been doing this awhile now.

I was attempting to do a fresh install because i had put this project on hold for so long (other stuff come up)
and had no idea where i was up to.

[elParaguayo]

Sorry, can't help on that one. This probably isn't the best thread for that question either.

Yes, project has been on hold but there's also not a huge amount more that I want to add to it at the moment either.

[brendanssound]

haha i meant my project has been put on hold (the sunrise alarm clock)

Can't find anyone else having this issue so must be on my end. Will figure it out.

[elParaguayo]

Ok. You may have more luck if you post in the multimedia thread and include the error messages you get. Good luck.

[elParaguayo]

Quick update: I thought it would be fun to make an ISS tracker screen...


It's pretty basic so far but seems to work ok.

[Paul Webster]

I thought I would give this a try ... but have had limited success so far.
The Kivy demos from the examples directory work fine (RPi2 with official touch display) - and I can pinch/zoom etc from the display.
But when I run RPi-InfoScreen-kivy I just get the text clock and attempts to touch various part of the display have no effect - presumably meaning it is not seeing the input.
Any hints?

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pi@raspberrypi ~/RPi-InfoScreen-Kivy $ python main.py
[INFO   ] [Logger      ] Record log in /home/pi/.kivy/logs/kivy_16-02-14_11.txt
[INFO   ] [Kivy        ] v1.9.2-dev0
[INFO   ] [Python      ] v2.7.3 (default, Mar 18 2014, 05:13:23)
[GCC 4.6.3]
[INFO   ] [Factory     ] 179 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_gif, img_pygame (img_pil, img_ffpyplayer ignored)
[INFO   ] [Window      ] Provider: egl_rpi
[INFO   ] [GL          ] OpenGL version <OpenGL ES 2.0>
[INFO   ] [GL          ] OpenGL vendor <Broadcom>
[INFO   ] [GL          ] OpenGL renderer <VideoCore IV HW>
[INFO   ] [GL          ] OpenGL parsed version: 2, 0
[INFO   ] [GL          ] Shading version <OpenGL ES GLSL ES 1.00>
[INFO   ] [GL          ] Texture max size <2048>
[INFO   ] [GL          ] Texture max units <8>
[INFO   ] [Shader      ] fragment shader: <Compiled>
[INFO   ] [Shader      ] vertex shader: <Compiled>
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [Text        ] Provider: pygame
[INFO   ] [OSC         ] using <multiprocessing> for socket
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event0
[INFO   ] [MTD         ] Read event from </dev/input/event0>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event0
[INFO   ] [HIDInput    ] Read event from </dev/input/event0>
[INFO   ] [Base        ] Start application main loop
[INFO   ] [MTD         ] </dev/input/event0> range position X is 0 - 800
[INFO   ] [MTD         ] </dev/input/event0> range position Y is 0 - 480
[INFO   ] [MTD         ] </dev/input/event0> range touch major is 0 - 0
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [HIDMotionEvent] using <FT5406 memory based driver>
[INFO   ] [HIDMotionEvent] <FT5406 memory based driver> range ABS X position is 0 - 800
[INFO   ] [HIDMotionEvent] <FT5406 memory based driver> range ABS Y position is 0 - 480
[INFO   ] [MTD         ] </dev/input/event0> range touch minor is 0 - 0
[INFO   ] [MTD         ] </dev/input/event0> range pressure is 0 - 255
[INFO   ] [MTD         ] </dev/input/event0> axes invertion: X is 0, Y is 0
[INFO   ] [HIDMotionEvent] <FT5406 memory based driver> range position X is 0 - 800
[INFO   ] [MTD         ] </dev/input/event0> rotation set to 0
[INFO   ] [HIDMotionEvent] <FT5406 memory based driver> range position Y is 0 - 480
^C[INFO   ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "main.py", line 52, in <module>
     InfoScreenApp().run()
   File "/usr/local/lib/python2.7/dist-packages/kivy/app.py", line 828, in run
     runTouchApp()
   File "/usr/local/lib/python2.7/dist-packages/kivy/base.py", line 487, in runTouchApp
     EventLoop.window.mainloop()
   File "/usr/local/lib/python2.7/dist-packages/kivy/core/window/window_egl_rpi.py", line 89, in mainloop
     self._mainloop()
   File "/usr/local/lib/python2.7/dist-packages/kivy/core/window/window_egl_rpi.py", line 84, in _mainloop
     EventLoop.idle()
   File "/usr/local/lib/python2.7/dist-packages/kivy/base.py", line 327, in idle
     Clock.tick()
   File "/usr/local/lib/python2.7/dist-packages/kivy/clock.py", line 512, in tick
     self._process_events()
   File "/usr/local/lib/python2.7/dist-packages/kivy/clock.py", line 641, in _process_events
     for event in events[:]:
 KeyboardInterrupt

[elParaguayo]

It may be simpler than that.

All screens, other than the word clock, are disabled by default. Have you enabled the ones you want to see (by editing the conf.json file in the relevant folder)?

[Paul Webster]

that was the correct answer. Now have Weather and can switch.

[elParaguayo]

OK time for an update...

Version 0.4 is now available.

New screens:

ISS Tracker (above)
Pong (above)
Christmas countdown (above)
Helsinki Bus (thanks Karrika)


New wordclock layouts (and ability to select colour):
French


Spanish


Portuguese


Swedish


Finnish


I've also included a webserver so screens can be configured/enabled/disabled from a remote machine.

[elParaguayo]

Screenshot of what I'm working on now...

Trying to build in menu functionality for SqueezePlayer. It's working but is still rough around the edges:

[DirkS]

Hi elP,

I had my eyes on this great project for a while. Finally getting around to try and adapt it to a (larger) non-touch screen.
My plan is to navigate with GPIO connected buttons and / or IR, although for easy testing I'll try to get keyboard / mouse working first.

I basically got it to work on my screen, but I'm having a problem with the web interface.
Because I have no way to navigate with keyboard or mouse right now, I'm trying to switch screens through the web interface.
For some reason that's not working. I see this message in the log

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 127.0.0.1 - - [17/Mar/2016 21:53:34] "GET /api/londonbus/view HTTP/1.1" 200 58
 192.168.0.20 - - [17/Mar/2016 21:53:35] "POST / HTTP/1.1" 200 11829

but nothing is happening. If I use the webapi method:

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http://192.168.0.211:8089/api/londonbus/view

thenI get this response

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{"status": "error", "message": "Could not change screen."}

This happens with every screen I try.
BTW I also tried to enable / disable screens using e.g.

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http://192.168.0.211:8089/api/football/disable

Again I get an error message

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{"status": "error", "message": "Could not disable football screen."}

But the config has been updated correctly...

Any idea what's going on, or how I can start to debug this?

[elParaguayo]

Dirk,

Thanks for the bug report. The web interface is a bit experimental as I have no prior experience of writing things like that.

That said, I thought it was working ok when I posted the code. Let me take a look tomorrow (or Saturday) and I'll see if I can fix this for you.

elP

[DirkS]

Dirk,

Thanks for the bug report. The web interface is a bit experimental as I have no prior experience of writing things like that.

That said, I thought it was working ok when I posted the code. Let me take a look tomorrow (or Saturday) and I'll see if I can fix this for you.

elP

Cheers. I'll try to do a bit of debugging myself (i.e. throw in a few print statements).

[DirkS]

A bit more information...

Caught the exception message in webapi.py

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    def view(self, screen):
        try:
            self.infoscreen.switch_to(screen)

results in:

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'NoneType' object has no attribute 'switch_to'

This probably also causes the error messages with disable / enable, even though the configuration file is updated successfully.

Digging a bit deeper. I think webapi is set up before InfoScreenApp.build is called.

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>>>>>>>>>>>>>>>>>>>>>>>>>> webapi.py: self.infoscreen = infoscreen.base
self.infoscreen: None
>>>>>>>>> set base <<<<<<
self.base: <core.infoscreen.InfoScreen object at 0xb1bfc1f0>

First two lines are from a print I put t line 55 in webapi.py.
Last two are from InfoScreenApp.build in main.py

HTH

[elParaguayo]

Strange. That really shouldn't happen as there is already code in place to make sure the web interface doesn't start until the main app is running.

Sounds like I need to check it.

[elParaguayo]

This is the section that should stop that part:
https://github.com/elParaguayo/RPi-Info ... #L215-L217

Maybe I need to be more explicit and get it to check for the "base" attribute too before starting the server. Easy enough fix if so.

[DirkS]

This is the section that should stop that part:
https://github.com/elParaguayo/RPi-Info ... #L215-L217

Maybe I need to be more explicit and get it to check for the "base" attribute too before starting the server. Easy enough fix if so.

Based on this I put a very crude test in place: add sleep(10) before https://github.com/elParaguayo/RPi-Info ... ce.py#L225
And hey ho, it works. I can now switch using the web interface and also with direct api calls

The reason I'm having this problem could be that I'm testing this on a Pi A+. It may work on a faster model...

[elParaguayo]

Great. Glad to hear it's working. I'll try to push a neater fix over the weekend.

I did my testing on my ubuntu laptop so that could be a factor too.

[elParaguayo]

Dirk,

Could you try using this code:

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    while infoapp is None:
        infoapp = App.get_running_app()
        if infoapp and infoapp.base is None:
            infoapp = None
        sleep(1)

in both the web server and api server and let me know if that works.

[DirkS]

At first that did not work, but then I realised that I had left

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    infoapp = App.get_running_app()

at the start of the function. Then, of course, infoapp is not None...

In the end I used

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def start_web(appdir, webport, apiport, debug=False):
    """Starts the webserver on "webport"."""
    infoapp = None
    while infoapp is None:
        infoapp = App.get_running_app()
        if infoapp and infoapp.base is None:
            infoapp = None
        sleep(1)

    ws = InfoScreenWebServer(infoapp, appdir, apiport)

    ws.run(host="0.0.0.0", port=webport, debug=debug)

And the same mods for 'start_api. Now it seems to be working fine

BTW: I tried to use the Python function isinstance() but I could not get that to work.

[elParaguayo]

Ok. I'll push that update tomorrow.

Thanks.

EDIT: Done.

[Drooneyef]

I've been playing with your project a few weeks now and i really like it.
I have a few questions.
Is it possible that the screens change automatically instead of clicking on the touchscreen?
Are you planning to make a screen for viewing an ip cam that's connected in your local network?

English isn't my native language so i hope you understand my questions.