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4 years ago
# MMDVMHost-Websocketboard
## Introduction
This is a very first development version of my new MMDVMDash using websockets-technology to get rid of high load on Raspberry Pi and others and keep those temperature down.
Also this should improve user experience.
## Key Features
* Websockets for reducing load on the hotspot/repeater
* Currently TXing on all timeslots
* Last-Heard-List
* QSO-net-management
* Local Heard-List
* DAPNET messages with decoding of Skyper-messages, -rubrics and METAR-messages
* System-Info-panel for visualize system health
* Automatically detecting clients timezone for displaying timestamps in local behavior
* Easier to customize the html-page because client-part persists in html and javascript-files
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## Technical Details
The Dashboard persists in detail in 3 components: two on the server (Hotspot/Repeater) side and on on the browser.
The two server sided components are the logtailer.py (which communicates via websocket with your browser and streams the logs to it for processing) and the webserver-component from python3 (which is serving the needed html and javascript infrastructure to your browser).
The client based component is the javascript processing the streamed log lines and filling the tables.
## Used Ports
By default following Ports are used for running the Dashboard:
* 8000 TCP: webservice
* 5678 TCP: Websocket
## Installation
You'll need to install several python3 modules. A concrete list will follow here later.
Actually known:
* websockets: `sudo apt install python3-websockets`
* ansi2html: `sudo pip3 install ansi2html`
* gpiozero: `sudo apt install python3-gpiozero`
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* psutil: `sudo apt install python3-psutil`
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### Recommendations
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* take care to set Loglevel for FileLevel = 2 in your MMDVM.ini
* also set debug = 0 on each section to avoid irritating output on the Dashboard
* Python3.7 at least must be instaled
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### Installation steps
* clone this repository to your home-directory with `git clone --recurse-submodules -j8 https://github.com/dg9vh/MMDVMHost-Websocketboard` to clone the repository with it's submodules
* create directory with `sudo mkdir /opt/MMDVMDash`
* change ownership to your user for example with `sudo chown -R pi /opt/MMDVMDash`
* copy all files from repository into this folder
* modify *logtailer.ini* to fit your needs
* modify */html/js/config.js* to fit your needs, here you can switch on/off tabs showing or enable debug for getting some output in javascript console. You should take a look into this file - here are different options you can configure.
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* copy files in */opt/MMDVMDash/systemd* to */etc/systemd/system* or similar corresponding to your system
* modify both scripts to fit your needs
* enable services with following commmands, this results in starting both automatically after reboot:
* `sudo systemctl enable http.server.service`
* `sudo systemctl enable logtailer.service`
* start services with following commmands:
* `sudo systemctl start http.server.service`
* `sudo systemctl start logtailer.service`
Finally you should be able to get the new Dashboard calling the hostname of your hotspot and port 8000 (default) in your broser
### Troubleshoting
If you have any trouble running the software most things depend on the logtailer-component. So it is a good idea to try starting the software on the console wih
`python3 ./logtailer.py` to see the output of the programme. A common error are missing python-libraries you should install with the commands mentioned above.
If you found any further missing library let me know! Just open an issue!
If there are problems with paths for logfiles you also could get some impressions with the output of the programme.
### If using DMRHost by BrandMeister-Team
If you are using the DMRHost as replacement for MMDVMHost you should enable DMR-ID-Lookup within logtailer.ini by setting the corresponding option = 1
Also take care to configure the filepath to the correct location of your DMRIds.dat.
For updating the DMRIds.dat you can use the script you find in scripts-folder.
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## Best Practise Installation
For getting the best user experience it is recommended to configure your MMDVMHost and other G4KLX-software with the following parameter:
`FileRotate=0`
This results in having only one logfile for each programme and having it rotated by your linux-system with logrotate if configured.
You should also configure your logtailer.ini with
`FileRotate=False`
to have the logtailer in correct behaviour for reading this file.
To configure log rotation in Linux take a look at https://www.tecmint.com/install-logrotate-to-manage-log-rotation-in-linux/.
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## Credits
*logtailer.py* is based on the work of http://shzhangji.com/blog/2017/07/15/log-tailer-with-websocket-and-python/
## Screenshots
![Screenshot of MMDVMDash Websocketboard](img/Screenshot.png "Screenshot of MMDVMDash Websocketboard")