In April 2019 I installed a node here at home!
The goal was to see how long a battery-powered Arduino stays online measuring the temperature and sending this data through LoRaWAN.
After 89357 data sent to The Things Network (TTN) the Node stopped sending since the battery ran out, which gave 542 days or 18 months only powered by two AA batteries.
Here is the original post: https://loranow.com/my-node-died/
Here is the code and data: https://github.com/ricaun/LoRaNow-18-months