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# View model
cat /proc/cpuinfo | grep Model

View undervoltage log messages

journalctl -b 0 _KERNEL_SUBSYSTEM=hwmon
journalctl -f _KERNEL_SUBSYSTEM=hwmon

On Raspberry Pi OS Lite (Debian 11) network is managed by ifupdown and dhcpcd.

# Restart networking
# [?] Order of commands will be different depending on configuration change 
service networking restart
service dhcpcd restart
# After editing /etc/wpa_supplicant/wpa_supplicant.conf
wpa_cli -i wlan0 reconfigure

/etc/wpa_supplicant/wpa_supplicant.conf example:

country=RU
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
ap_scan=1

update_config=1
network={
	scan_ssid=1
	ssid="ssid"
	# password
	# https://github.com/cheretbe/notes/blob/master/linux/networking.md#wpa-psk
	psk=44116ea881531996d8a23af58b376d70f196057429c258f529577a26e727ec1b
}