Arduino Mega LCD 16x4 Display

This project demonstrates how to interface a 16x4 character LCD (Liquid Crystal Display) with an Arduino Mega. The project initializes the LCD, displays a greeting message on the first line, shows the elapsed time since the board was reset on the second line, updates a counter on the third line, and displays the current date on the fourth line.

Components Needed

• Arduino Mega
• 16x4 LCD Display
• Potentiometer (for contrast adjustment)
• Jumper Wires
• Breadboard
• Power Supply

Block Diagram

Circuit Setup

Connect the LCD Display to Arduino Mega:

Instructions

Circuit Setup:

Connect the 16x4 LCD display to the Arduino Mega as described in the circuit setup section.

Libraries:

Ensure you have installed the

Code Upload:

Open Arduino IDE and create a new sketch.

Copy and paste the provided Arduino code into the sketch.

Testing:

Upload the code to the Arduino Mega.

Observe the LCD display. The first line should display "Hello, Arduino!", the second line should display the elapsed time in seconds, the third line should display an incrementing counter, and the fourth line should display the current date

Applications

Notes

Adjust the

Ensure the potentiometer is adjusted correctly for optimal contrast on the LCD display.

Secure all connections properly to avoid loose connections which could affect the display.