This is I2C serial interface adapter. We can adjust contrast of LCD by this blue potentiometer shown in picture. We can solder this directly on LCD. In this tutorial we are going to connect I2C and LCD by breadboard. Do connection as shown in diagram.

How to Connect I2C Adapter to 16 x 2 Display. In the above sections of the article we learned the basics of I2C protocol and took a basic overview on I2C LCD adapter module. In this post we are going to learn how to connect the I2C LCD adapter module to 1

Use 16x2 LCD With I2C: In one of my previous Instructable, I showed you how to connect and interface an LCD to Arduino Uno and display values on it. But as observed, there were a lot of connections and if the project started getting a lot messy due to too