Wifi configuration for Raspberry Pi 3 Model B+

wpa_supplicant.conf

# wpa_supplicant.conf

# The country code is manadatory, otherwise wifi will be disabled
country=DE
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
	ssid="your-ssid"
	psk="your-password"
}