Waiting for that very special piece of mail? This mail slot detector will alert you when the mail arrives in your mail slot. Using a break beam sensor, FunHouse running CircuitPython, and Adafruit IO, you'll get an alert when the mail has been delivered.
This guide was first published on May 11, 2021. It was last updated on May 11, 2021.
This page (Overview) was last updated on May 03, 2021.
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