- Based on the Nexmon CSI Extractor(Raspberry Pi, Wi-Fi chip: bcm43455c0), this repository functions to save Channel State Information (CSI) data as a csv file for each TX MAC address
- Therefore, you can use this repo after installing the Nexmon CSI Extractor firmware and activating the monitor mode
- Clone this repo to Raspberry Pi to use as extractor and install the dependencies
pip3 install -r requirements.txt
- Run
csi_extract.py
with monitor mode enabled
sudo python3 csi_extract.py
- To stop collecting, type
s
on your keyboard - Before starting CSI extraction, it is recommended to check whether the monitor mode is working well through a real time plot
sudo python3 csi_realTimeAmp.py
or
sudo python3 csi_realTimePhase.py
- If the real time plot does not work, there is a high possibility that there is a firmware installation error or monitor mode setting error
- The extractor configuration can be modified in
./cfg/config.py
-
Number of columns: 2 + N_subcarriers
mac
: TX MAC addresstime
: Time the CSI was extractedN_subcarriers
: Index of each subcarrier
-
CSI values are stored in complex type