I made a sign modeled after something like this:
That has helped some, but it hasn’t entirely solved the problem. (Human behavior is such a problem!) Some other delivery personnel don’t even get close enough to the door to press the button.
With this doorbell model, I really like the idea of using the battery and existing wiring, especially since I use microSD cards set for continuous recording in all my Wyze cameras. I imagine you might have your reasons for asking the question—and it’s a good question—but I think it’s really cool to have more options with this thing.