I installed hyperion on a pi3 also added the wpa_supplicant.conf file. I used this example
Country =us
Update_config=1
Crtl_interface=/var/run/wpa_supplicant
Network=[
Scan_ssid=1
Ssid="myssid"
Psk="my password "
]
But don't see it on my router. It does work if wire it though. Anymore know why the wifi file is not working.