Doorbell and Biometric Garage Automations
A PoE doorbell becomes a whole-house announcement system and a fingerprint reader becomes a garage key.
A UniFi Protect G4 Doorbell Pro is the input for two quality-of-life automations. The first makes every Sonos speaker in the house chime and pops a live camera feed on a wall dashboard, solving the real problem that a doorbell you cannot hear over music is useless. The second opens the garage when one specific family member's enrolled fingerprint is identified, so nobody carries a remote.
Two small automations, but the details are the point. The Sonos flow brackets a forced volume override with a snapshot and restore so the chime is audible regardless of what was playing and the music comes back at its previous level afterwards. The garage flow checks the resolved user identifier from the Protect fingerprint event rather than trusting the event alone, so an unrecognised finger cannot open the door. The wall dashboard the popup lands on is an Amazon Fire tablet that was bootloader-unlocked and re-flashed to run a proper browser.