(493) "Transaction Proof" Mailbox Notifier using an unknown E32 LoRa board and an ATTINY1614

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:    / hb9blawireless   Links: Sketches: https://github.com/SensorsIot/LoRa_Ma... RA-02 board: https://s.click.aliexpress.com/e/_Deb... E32-TTL-100 module: https://s.click.aliexpress.com/e/_DEG... ESP32 Prototype board: https://s.click.aliexpress.com/e/_DFC... ESP32 mini board: https://s.click.aliexpress.com/e/_DB1... RF_Setting tool download: https://www.cdebyte.com/Resources-Dow... Patreon supporter companies: https://www.welectron.com/ The links above are usually affiliate links that support the channel (at no additional cost to you). Supporting Material and Blog Page: http://www.sensorsiot.org GitHub: https://www.github.com/sensorsiot My Patreon Page:   / andreasspiess   Discord:   / discord   If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission on your purchases to buy new stuff for the channel My Amazon.com shop: https://www.amazon.com/shop/andreassp... For Banggood https://bit.ly/2jAQEf4 For AliExpress: For AliExpress: bit.ly/3MtXUY8 (just go on from here to your product) For Amazon US: https://www.amazon.com/shop/andreassp... For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp   / spiessa   Please do not try to email me. This communication channel is reserved for my primary job As an Amazon Associate, I earn from qualifying purchases #no#midroll#ads