This week, Google introduced a new kit for your project based on the Raspberry Pi Zero W board. It enables cloud-free image recognition.

NOOBS is incredibly simple to use. Just burn the image to an SD card (our setup guide can help with that if you need it), and put the SD card into your Raspberry Pi.

The system uses a Raspberry Pi and camera to handle the face recognition, and then a servo lock the box. The end result is a pretty simple little lockbox that you'll unlock with your face.