#include <Adafruit_LiquidCrystal.h> - Imports the Adafruit LCD library to communicate with the LCD display. int counter = 0; - Declares and initializes a variable to keep track of the count.

LCD controller board has an inbuilt potentiometer to control contrast of LCD. Pin diagrams of IC and LCD controller are given below. Circuit diagram. Connections for interfacing LCD with ESP32 is ...

This project uses an HC-SR04 ultrasonic sensor and Arduino UNO to measure the distance of objects in both centimeters and inches. The measured data is displayed on an I2C LCD. The project was ...

Reference circuit diagram of an Arduino-compatible LCD backpack is shown below. What follows next is information on how to use one of these inexpensive backpacks to interface with a microcontroller in ...