MLC CORE board

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Introduction:
The CORE board provides power, LCD, one pixel LED and BUS interfaces for the ESP board that is plugged on top.

Architecture:

It is powered from 12Vdc, fuse and TVS protected. The BUS I/Os are overvoltage protected as well. The headers are ready for WEMOS D1 Mini ESP32.
Coded in Arduino IDE, it features: Wifi client/(AP), LittleFS with 1.3MB of space and web file editor, HTTPS cloud access, MLC board configuration backuping, parsing, editing and deploying.

Images:

Schematics: