These are ports from Elegoo's "THE MOST COMPLETE STARTER KIT TUTORIAL FOR MEGA 2560" being run on an Arduino Uno link to elegoo's product page: https://www.elegoo.com ...

This project connects a 16x2 or 20x4 LCD Display to an Elegoo Mega 2560, allowing it to display messages or real-time data. The project supports both I2C communication (recommended for fewer wires) ...

Arduino is so much about what is made with Arduino boards that we hardly spare a thought for the boards themselves. Well, Arduino cares, and they've just gone about redesigning their base model, now ...