The Arduino code in the "serial_to_LCD" folder reads data from the Arduino serial port and displays it on the LCD screen (HD44780 compatible). It works both with the virtual serial port through the ...

This directory has a template version of the Arduino (.ino) and Unity (.cs) files that output JSON from Arduino, read the serial input in Unity, and put the collected data inside an object.

They also only implement serial sending (so the Arduino receives) so far, although they mention the next step would be to build the other side of the connection.