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Python SDR waterfall

Installation

You can see pySDR running with gnuradio companion in this pySDR video

GNU Radio integration

Integration of pySDR in to gnuradio is possible via gr-pipe block. For installation download it, compile it and install it in your system from your terminal

Fix of problem with gnuradio installed from Ettus binary packages

Install dependencies

sudo apt-get install gnuradio-dev libgnuradio-core3.6.1 swig doxygen cmake libboost-dev

Compile and install gr-pipe

git clone git://github.com/jolivain/gr-pipe.git
mkdir gr-pipe/build
cd gr-pipe/build
cmake ..
make
sudo make install

After compilation and install create configuration file for GRC:

vim ~/.gnuradio/config.conf

Paste following content to file:

[grc]
local_blocks_path=/usr/local

After that library path must be added to environment:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/

Now we can run gnuradio-companion. A new block category Pipe appear in block menu. For using pySDR as gnuradio sink we use "Pipe Sink" block. With command option "cd path_to_pysdr_source; python waterfall.py -b FFT_size -r sampling_rate"

For example:

cd /home/kaklik/git/pysdr; python waterfall.py -b 5120 -r 48000

pySDR and gnuradio in action.