In this video, we learn how to control the angle of a servo motor using a potentiometer (variable resistor) and display the angle on an LCD1602 or LCD2004 with an I2C module that has four wires.

This is code SP-LCD-2, where we did not use a breadboard to distribute power from 5V to the potentiometer, servo motor, and LCD. Only the servo motor is powered directly from 5V. The LCD and potentiometer are powered via digital pins. Details have been explained in the video.

Here is the code for use without a breadboard.