I am actually using a OrangePiPC as:
- WLAN access point (hostapd)
- LTE Internet via a E3372 USB dongle
- radio via DVB-T dongle/Internet
- USB speakers for the radio
- Bluetooth dongle to connect to Bluetooth-enabled speaker in another room
- USB temperature sensor, motion sensors via GPIO
- VoIP telephone with connected USB headset
- small LCD display to show the current temperature and incoming call information