Mare writes:
Lora board with Arduino nano compatibile pinout and simple battery management
Small board with arduino nano compatibile pinout with power management and Murata ABZ LoRa module with STM32L0 microcontroller
Features:
-LoRa module: Murata ABZ
-Single cell LiPo cell charger on-board with charging signal internally connected to PA11 (via jumper)
-Buck/Boost switching power supply for delivering stable 3,3V regardless of the batterz voltage
-Battery fuel gauge on-board to control the real status of the battery
See the full post on Mare & Gal Electronics blog and the GitHub repository here.