nexmonster / nexmon_csi

Channel State Information for Raspberry Pi. Use the pi-5.10.92 branch.
https://github.com/nexmonster/nexmon_csi/tree/pi-5.10.92
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Capturing on 20MHz? #35

Open pptz opened 1 year ago

pptz commented 1 year ago

I am trying to capture CSI in the 20MHz bandwidth on the Raspberry Pi 4B, and configuring like so: mcp -C 1 -N 1 -c 8/20 (also tried channel 2) And the rest according to the guide, but when I listen on the socket, there is no data coming out. Is 20MHz supported? The RPi4B supports 802.11ac, which supports 20MHz, so I assume it's not a hardware issue (though advice on what I could check in the wireless driver is also welcome, I'm no expert).

zeroby0 commented 1 year ago

Yes 20MHz is supported. What does nexutil -k say when running? I'm assuming you've checked the router is running on the same channel and there are devices generating traffic.

Also restarting the device is the fastest and easiest fix if the firmware has crashed and isn't sending packets.