Automatic Wi-Fi channel selection script for OpenWRT and supported systems
This little script will scan wireless networks around you and pick the best (least congested) frequency channel (1, 6 or 11).
It relies on iw [device] scan and it makes several scans with delays between them for increased accuracy.
$ ./setAutoChannel.sh [interface index]Where interface index is the index number of the wireless interface you are insterested in (eg. if you want to pick a channel for wlan0, pass 0 here)
After the best channel is found, this script will commit a config change using UCI, assuming that your radio interface has the same index (wlan0 -> radio0).
You can execute this script from your crontab to make it run regularly, or to /etc/rc.local to launch it on startup.
By default this script makes 3 scans with 5 second delay between them. You can change this at the top of the script.
MIT License
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