Template for wpa_supplicant.conf file

Create the file wpa_supplicant.conf in the /boot partition, and include the following details:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=YOUR_COUNTRY_CODE

network={
    scan_ssid=1
    ssid="YOUR_SSID"
    psk="YOUR_PASSWORD"
}