To follow this tutorial you need these parts: On a “regular” LCD you need to add a potentiometer to the circuit to adjust the contrast. You just need to wire the SDA and SCL pins.Īdditionally, it comes with a built-in potentiometer you can use to adjust the contrast between the background and the characters on the LCD. The advantage of using an I2C LCD is that the wiring is really simple.
You can also use this guide with the ESP8266.įor this tutorial we’ll be using a 16×2 I2C LCD display, but LCDs with other sizes should also work. We’ll show you how to wire the display, install the library and try sample code to write text on the LCD: static text, and scroll long messages. This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE.
