UART battery monitor

[bigboy061293 (Vu Nguyen)]

@Magix

these batteries have a pretty constant voltage so it is not easy to monitor the capacity of the battery

Hello @Magix, I may not get you at this point. Why constant voltage make it difficult to monitor tha battery capacity - here I assume that “capacity” means mAh

There are several ways to “feed” the Ardupilot battery information

1. Using Mavlink: You need to have intermediate hardware (such as microcontrollers, embedded PC) to read the battery and send the BATTERY_STATUS messages to Ardupilot
   Some useful links about how it goes:
   Simple way MAVLink and Arduino: step by step
   Battery status message Battery Protocol · MAVLink Developer Guide

2. Using UAVCAN: https://uavcan.org/specification/UAVCAN_Specification_v1.0-beta.pdf#batteryinfo this is more difficult to implement compared to the 1.

3. Why just simply use the Analog voltage/current measuring feature from Ardupilot: Power Monitor/Module Configuration in Mission Planner — Copter documentation

Hope this helps.
Vu.