The concept here is that you place a marker next to the
real mail box, that allows you to send authenticated
messages to whoever lives in that address.
It can be used by posties, to push an parcel alert, so you
can actually get time to open the door. Or at least
time to tell them
to just leave the parcel at the door.
For the community perspective, its simplifies sending
leaflets, since you can just place message via tapping at
each house. (You can escalate attention to user by
provide a small payment to the household)
While you do not have to be present at the mail box to
send message to the household, you do have to be
to indicate that you are actually at the mailbox.
This is done via a solar powered "Time-based One-time
Password Algorithm" module that shows a constantly
refreshing display that shows a QR image, or an NFC
Thus no more "No ring, but pick it up at the post office."
slips. And a new way to receive community messages in a
way that doesn't result in more trees being cut down for