wrote on 12/18/2020 8:16 AM:
Over the last two years I've designed and built three Arduino based soaring related devices.. They a 1) Tow Altitude Recorder with tow plane and ground units, 2) Cockpit Dual Battery Voltage & Temp Monitor, and 3)Trailer Lights Monitor.

Panasonic LiFe Batteries are now available with Bluetooth reporting of their status (volts,
current, state of charge, temperature) to a smartphone. I think a small, dedicated, panel
mounted display (BID - "battery information display") would be much more useful in-flight.

For batteries that don't have a built-in Bluetooth, you could develop a "BMS" (battery
measurement system) that mounts on each battery, and reports to the BID.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1