Make sky blue Solar Charge Controler

[meMorizE]

Description:

Support for MakeSkyBlue Solar Charge controller (V118, V119, via Serial Communication Tx, Rx). http://www.makeskyblue.com The V119 includes a Wifi-Module, which is ESP8285 based, but the original closed firmare supports only an Android app. More details and implementation at file xnrg_25_mk_sky_blu.ino .

Main topics in short:

• Every second new measurements are requested from the charge controller by Serial Tx.
• Read and Write of the 10 configuration registers is supported via weblog.
• several compile options are provided at the top of the xnrg file.
• disabled compile option: replace the L1 and L2 headings with D_DEVICE_INPUT and D_BATTERY , because this requires core changes for an additional Energy->phase_names element

Checklist:

• [y] The pull request is done against the latest development branch
• [y] Only relevant files were touched
• [y] Only one feature/fix was added per PR and the code change compiles without warnings
• [y] The code change is tested and works with Tasmota core ESP8266 V.2.7.6
• [build only] The code change is tested and works with Tasmota core ESP32 V.3.0.0
• [y] I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[meMorizE]

Thanks for your review. By your hints and some results of long-term testing there are more required changes in the meantime. I will include everything in a new pull request soon.