Mailbox Notifier

LoRa modulation is used in many applications, like LoRaWAN or Meshtastic. Another application, a LoRa 1:1 link, can be beneficial because it inherits all the good properties, like long distance and low power. It is simple, does not need an infrastructure, and can be used bi-directionally. Because I want to build a long-range bidirectional mailbox notifier, I will evaluate a few LoRa boards, connect them to an ESP32 and an ATTINY1614, and finally integrate them via MQTT into Home Assistant.

You will find the description in videos:

https://youtu.be/jXi5lgOuPNc

and

https://youtu.be/69hB-pi9mkA

on Youtube.

The code is on: https://github.com/SensorsIot/LoRa_Mailbox_Notifier