Recommended · for beginners
How a Character LCD Works - Part 2
Why people recommend it
Second part of a series explaining how common character LCD modules work, recommended before trying to read the datasheet yourself.
Watch for: Shown on a Commodore 64 but applies to Arduino
In their words
The 8-Bit Guy has a video that discusses the LCD character displays based on the HD44780 mentioned above, and that video is where I got the idea from.
Danya02 on electronics.stackexchange.com, Jan 2018. CC BY-SA.