@AndreasSpiess
  @AndreasSpiess
Andreas Spiess | "Transaction Proof" Mailbox Notifier using an unknown E32 LoRa board and an ATTINY1614 @AndreasSpiess | Uploaded September 2024 | Updated October 2024, 6 days ago.
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.

My second channel: youtube.com/HB9BLAWireless

Links:
Sketches: github.com/SensorsIot/LoRa_Mailbux_Notifier
RA-02 board: https://s.click.aliexpress.com/e/_Debzo4p
E32-TTL-100 module: https://s.click.aliexpress.com/e/_DEGNOSV
ESP32 Prototype board: https://s.click.aliexpress.com/e/_DFCiUa5
ESP32 mini board: https://s.click.aliexpress.com/e/_DB1WPTx
RF_Setting tool download: cdebyte.com/Resources-Download

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Supporting Material and Blog Page: sensorsiot.org
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"Transaction Proof" Mailbox Notifier using an unknown E32 LoRa board and an ATTINY1614 @AndreasSpiess

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