Keyestudio ESP32 Manual page 85

ESP32 Starter Kit
8.5.12 Project 11: LCD
1. Description
Arduino I2C 1602 LCD is a commonly-used auxiliary device for MCU development board to connect with external
sensors and modules. It features a 16-bit wide character, 2-line LCD screen and adjustable brightness. This programable
module is convenient for data editing, display and management . Besides, it can display not only characters and figures
but sensors value, like temperature, humidity or pressure value.
As a result of its usability, the display is wildly applied in many fields, including smart home products, industrial
monitoring systems, robot control systems and automotive electronics systems.
2. Working Principle
It is the same as IIC communication principle. Underlying functions have been packaged in libraries so that you can
recall them directly. If you are interested in these, you may have a further look of underlying driving principles.
8.5. Arduino Project 81