LCD stands for Liquid Crystal Display. The LCD screen consists of two glass plates with a liquid crystal (LC) layer in between. LCD screens are low energy consumption flat screens.
FrederickI2C LCD interface moduleWorks well! I had to scan for the correct I2C address (0x3F instead of 0x27)
Peter20x4 Characters lcd module blueProduct works well, I use it with the recommended I2C interface, read the PDF file and it works like this!
Nick FrissenI2C LCD interface moduleWorks well, just solder it on your LCD and it's ready to use. (It is possible that the contrast is not correct from the factory, but this is easy to adjust with the potentiometer)