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Yes, I rebooted pi Here's the things u asked for : cat /sys/kernel/debug/ieee80211/$(iw dev wlan0 info | gawk '/wiphy/ {printf "phy" $2}')/forensics 2 bytes to the heap 000000.148 wlc_bmac_info_init: host_enab...

I tried to reinstall raspian as u said. Following all the instructions in https://github.com/zeroby0/nexmon_csi/tree/pi-4.19.97 ,unfortunately this error occurred: root@raspberrypi:/home/pi# ifconfig wlan0 up wlan0: ERROR while getting interface flags: No such...

I reinstalled raspian from https://github.com/nexmonster/nexmon_csi/tree/pi-5.4.51 . Fortunately the wlan issue has been solved. As I mentioned above i try to use another Pi4 as Access Point. I try to connect...

@tweigel-dev thanks for your response. i really appreciate your help Could you please explain more about these two options? And which one do u recommend?

I want to use CSI values for activity recognition. I do some activities(walk,fall down,...) between two raspberries and collect CSI values.

Hi there; Try to reinstall raspian and nexmon. Be sure that you are using the right kernel version. Check the version of kernel header. It should be 5.4. U can...