On Friday, December 18, 2020 at 10:16:46 AM UTC-6, wrote:
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.

Yes I am interested in the battery temp/voltage unit. (info on the other two might also be helpful

Thanks,

Lauren