The PiNG Video Doorbell is powered by a Raspberry Pi and is retro-stylishly cased in a 1986 Intercom and an old Sony cassette player.
When the doorbell button is pressed the Pi makes a high-quality video call using Google Duo, which can be answered on a phone, tablet or computer, letting you see and speak to callers when you’re away from home (or at home but trapped under a cat). It works over WiFi and cellular, so you can even answer the door when you’re out pounding the streets.
It also sounds a standard wireless door chime inside the house as a fail-safe, in case the call can’t be taken.
The doorbell unit is fitted outside the house, with a companion base unit inside, connected with 6-core alarm cable. The base unit houses a Pi 3B+ and is housed in a stripped-out cassette player.
It works amazingly well and the Google Duo sound and video is smooth – I took a call from a delivery person while out walking yesterday lunchtime which was very exciting!
I started this project in early March and finished it at the Easter weekend, and it’s been an absolute barrel of fun, I’d highly recommend playing around with Google Duo on a Raspberry Pi! If you have a Pi and some bits lying around you can probably make something similar in a couple of hours.
There are full project write-ups with instructions, photos and code at the links below: