Keypad

The Keypad project demonstrates how to interface a 4x4 matrix keypad with an Arduino Mega to detect key presses. The project reads the key presses from the keypad and prints the corresponding characters to the Serial Monitor.

Components Needed

• Arduino Mega
• 4x4 Matrix Keypad
• Jumper Wires
• Breadboard
• Power Supply

Block Diagram

Circuit Setup

Connect the Keypad to Arduino Mega:

Instructions

Circuit Setup:

Connect the 4x4 matrix keypad 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.

Open the serial monitor in Arduino IDE (set to 9600 baud).

Press keys on the keypad and observe the corresponding characters printed to the Serial Monitor.

Applications

Notes

Adjust the delay in the

Customize the

Ensure all connections are secure and the keypad is properly interfaced with the Arduino Mega.