Current experiment: Using a super-capacitor instead of a LiPo battery to power a #LoraWan sensor node.
The #capacitor holds enough charge to power the microcontroller and sensors for 9h after it gets dark (dynamic transmission interval, 10 minutes max).
Controller used is a Heltec Cubecell AB01(v2).
Code is on Github: https://github.com/wtremmel/heltec-cubecell-lora-sensors