A software flap display
This is a flap display you can run on your info-beamer hosted devices. You can easily update the text by editing the setup and hitting save.
Automatically updating content
Alternatively you can also automatically update the content with a
package service. In the
source code of this package you'll find an example package service in
the file service.example.
If you fork the package code, rename this file
service in your fork so info-beamer recognizes it as a package service.
The code for updating the sign output automatically is quite small. Here is a minimal example that output 'Hello World' and the current unix timestamp in the first three lines of your display:
#!/usr/bin/python import time from ibquery import InfoBeamerQuery while 1: ib = InfoBeamerQuery("127.0.0.1") con = ib.node("display/atomic").io(raw=True) con.write("Hello\nWorld\n%d\n" % time.time()) con.close() time.sleep(1)
See the annotated source code for more information on how updating exactly works.
You must send your data encoded as utf8. The following letters are supported by the classic mode:
Updating from outside
Instead of running a package service you can also modify the output from outside by having an external program directly connecting to the info-beamer process on the device. You'll have to enable access for that. Note that there is no authentication, so anyone who can reach your info-beamer device can update the output.
Once enabled, connect to the device with a TCP connection on port 4444 and send the following data (line-breaks for illustration purposes only):
*raw/display/atomic\n Line1\n Line2\n
If your TCP client disconnects, the sent lines will become active on the screen.
Adding your own style
Checkout https://github.com/opendatacity/splitflap, install the
config.js with the charset, animation steps
and other details. Then go to
textures/ and run
nodejs 1_generate_letters.js nodejs 2_raytrace.js
../images/texture_400.png. Use the
tool included in this package to rearrange the texture so it
fits into 2048x2048 pixels. See the comment in
for how to run this. Finally add your style to
Want to run Flap Display on your Raspberry Pi?
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Source code for this packageYou can view (and modify) the source code for this package on https://github.com/info-beamer/package-flap-display
Copyright (C) 2015-2018 Florian Wesch <email@example.com> Show full license information
Copyright (C) 2015-2018 Florian Wesch <firstname.lastname@example.org> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. letters.png created by https://github.com/MichaelKreil