I've got both the Nest version of the cameras and the battery Google Nest cameras, Here's my understanding of the setup process for the new battery cameras, Open Google Home on the top left tap the "+" to add a new device, select "+ Set up device", then "New device", pick your home address and tap "next". Google will scan and then a menu will come up to add the camera so click on "camera." You'll pick the model so be certain to pick the "Nest Cam (outdoor or indoor, battery)" then scan the QR code or use the tiny 6 digit code on the bottom of the camera. It should scan for the camera then it'll be in the Home camera list. The process should be the same for the battery doorbell just click "Doorbell" instead of "Camera".
