codec2 | FreeDATA

My attempt to create a free and opensource TNC with a GUI for codec2 to send data over HF channels. The TNC itself will be completely controllable via network.

Under development

The project is still a prototype and not usable at this time. Build steps for other OS than Ubuntu are provided, but the bundle is only running on Ubuntu

Manual Installation Ubuntu

1. Install dependencies and codec2-FreeDATA

A folder "codec2-FreeDATA" will be created in /home/[user] codec2-FreeDATA needs codec2 to be installed within codec2-FreeDATA/tnc folder.

sudo apt install git build-essential cmake
sudo apt install npm
sudo apt install python3
pip3 install psutil
pip3 install crcengine
pip3 install ujson
pip3 install pyserial
pip3 install numpy

wget https://raw.githubusercontent.com/DJ2LS/codec2-FreeDATA/main/tools/install-codec2-FreeDATA.sh
chmod +x install-codec2-FreeDATA.sh
./install-codec2-FreeDATA.sh

2. starting tnc

You need to set the "--debug" option. Otherwise daemon.py is looking for precompiled binaries which causes an error

cd /home/[user]/codec2-FreeDATA/tnc
python3 daemon.py --debug

3. starting gui

There will be an error on startup, that "daemon" can't be found, This is because the gui is looking for precompiled tnc software. This error can be ignored, if you're running the tnc manually from source

The gui is creating a directory "codec2-FreeDATA" for saving settings in /home/[user]/.config/

cd /home/[user]/codec2-FreeDATA/gui
npx electron main.js

Manual Installation macOS

Install brew and python3

https://docs.python-guide.org/starting/install3/osx/

$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
brew install python
pip3 install psutil
pip3 install crcengine
pip3 install ujson
pip3 install pyserial
pip3 install numpy

Install dependencies

xcode-select --install
brew remove portaudio
brew install portaudio
pip3 install pyaudio

Manual Installation Windows

Install python3

Download Python from https://www.python.org/downloads/
Add Python to systempath https://www.educative.io/edpresso/how-to-add-python-to-path-variable-in-windows
Download and install pyaudio from https://www.lfd.uci.edu/~gohlke/pythonlibs/#pyaudio
eg.: pip install PyAudio-0.2.11-cp37-cp37m-win_amd64.whl
pip install psutil
pip install crcengine
pip install ujson
pip install pyserial
pip install numpy
python daemon.py

Install nodejs

https://nodejs.org/en/download/
cd codec2-FreeDATA/gui
npm i
npm i electron
npx electron main.js

GUI Preview

TNC Preview

npm outdated --> list outdated npm packages npx npm-check-updates -u --> updated all packages npm install --> install all updated packages

Credits

David Rowe and the FreeDV team for developing the modem and libraries FreeDV Codec 2 : https://github.com/drowe67/codec2

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