https://lorraine.mcunderwood.org/raspberry-pi-intercom-system/
3 x Pi's: 1 server+client (Kitchen), 2 x client (Back cabin, Barry bedroom)
Something like this for the actual hardware encapsulation:
https://lorraine.mcunderwood.org/raspberry-pi-intercom-system/
3 x Pi's: 1 server+client (Kitchen), 2 x client (Back cabin, Barry bedroom)
Something like this for the actual hardware encapsulation: