The BC16 Battery Meter comes with the TTL communication port that allows reading the data of the BC in a digital way.
https://gwl-power.tumblr.com/post/650919610708852736/
Please see the photos of the connection of the communication cable. Check more at ELERIX GitHub – https://github.com/ELERIX/gwl-m-bc16-sw/tree/main/support
The TTL-232 to USB converter that has been tested by GWL – Check at GWL Shop
The BC-16 Software to allow reading the data from BC16 both on Windows and Linux. This software is available as a support from GWL including the source code in Phyton. - https://github.com/ELERIX/gwl-m-bc16-sw
Enjoy and stay in touch with GWL for additional innovative solutions.