DIYables LCD Keypad Shield for Arduino Uno, Mega

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LCD 1602 Keypad Shield for Arduino Uno, Mega - Integrated Keypad and Display for Arduino Projects

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Arduino UNO Mega LCD shield with 16x2 display and navigation buttons

DIYables 1602 LCD keypad shield with 5 buttons for Arduino projects

LCD character display shield for Arduino UNO R3 R4 menu systems

Plug-and-play LCD 1602 shield for Arduino Mega sensor monitoring

Quick Overview

The DIYables LCD 1602 Keypad Shield is the perfect all-in-one user interface solution for Arduino UNO-form factor boards (UNO R3, UNO R4 WiFi, UNO R4 Minima, Leonardo, Zero) and Mega-form factor boards (Mega 2560, Due, Giga R1 WiFi). This integrated shield combines a 16x2 character LCD display with 5 navigation buttons (Select, Up, Down, Left, Right) on a single board, making it ideal for creating interactive menus, control panels, sensor monitoring systems, and user-friendly Arduino projects.

Simply plug the shield onto your Arduino board no wiring, breadboards, or soldering required. The high-contrast LCD screen displays two rows of sixteen characters each, perfect for showing real-time sensor data, system status, menu options, or custom messages. The built-in tactile buttons provide intuitive navigation for menu systems, setting adjustments, and user input without requiring additional components.

Whether you're building a home automation controller, weather station, game console, smart thermostat, or any Arduino project requiring user interaction and feedback, this LCD Keypad Shield provides a professional, ready-to-use interface. Comes as a 2-pack for prototyping multiple projects simultaneously. Complete with library support, comprehensive tutorials, and example code, you can create functional user interfaces in minutes perfect for students, makers, hobbyists, and educators.

Key Features

All-in-One Display & Keypad Module Integrated 16x2 LCD display with 5 built-in navigation buttons (Select, Up, Down, Left, Right) provides complete user interface solution without additional wiring or components
Clear 1602 LCD Display High-contrast 16 character x 2 row LCD screen with adjustable backlight delivers crisp, easy-to-read text output for menus, sensor data, status messages, and real-time information
5 Navigation Buttons Tactile push buttons for Select, Up, Down, Left, Right enable intuitive menu navigation, setting adjustments, and user input for interactive Arduino applications
2-Pack Value Includes two LCD keypad shields for prototyping multiple Arduino projects simultaneously, perfect for students, classrooms, workshops, or backup units
Universal Compatibility Works with both UNO-form factor boards (Arduino UNO R3, R4 WiFi, R4 Minima, Leonardo, Zero, DIYables STEM boards) and Mega-form factor boards (Mega 2560, Due, Giga R1 WiFi)
Plug-and-Play Installation Simply stack the shield directly onto Arduino boards with no soldering, breadboard, or complex wiring required setup takes seconds
Standard LiquidCrystal Library Compatible with Arduino's built-in LiquidCrystal library for easy programming with extensive documentation and community support
Analog Button Reading All 5 buttons share a single analog pin (A0) using resistor ladder, leaving more digital pins free for sensors, motors, and other components
Adjustable Contrast Built-in potentiometer allows fine-tuning of LCD contrast for optimal readability in different lighting conditions
Free Online Tutorials Comprehensive step-by-step guides, example code, and project ideas available at arduinogetstarted.com and newbiely.com
Perfect for Menu Systems Ideal for creating interactive menus, settings configuration, data entry, navigation interfaces, and control panels in Arduino projects
Versatile Applications Excellent for home automation, sensor monitoring, thermostats, game consoles, data loggers, control systems, STEM education, and interactive displays

SPECIFICATION

Specification	Value
Shield Type	LCD Keypad Shield
LCD Display	16x2 characters (1602)
Display Color	Blue backlight / White text
LCD Controller	HD44780 compatible
Navigation Buttons	5 buttons (Select, Up, Down, Left, Right)
Button Interface	Single analog pin (A0)
Contrast Adjustment	Potentiometer (adjustable)
Designed for UNO-form factor boards	Arduino UNO R3, UNO R4 WiFi, UNO R4 Minima, Leonardo, Zero, UNO SMD, DIYables STEM V3, DIYables STEM V4 IoT
Also works with Mega-form factor boards	Arduino Mega 2560, Arduino Due, Arduino Giga R1 WiFi
Form Factor	Universal Arduino Shield
Stackable	Yes (with limitations)
Dimensions	Standard Arduino shield size

Library

LiquidCrystal

Tutorials

Arduino Example Code

/* * This code is created by DIYables.io * This code is released in the public domain * For more detail, visit https://diyables.io/products/lcd-keypad-shield-for-arduino-uno-mega */ #include <LiquidCrystal.h> LiquidCrystal lcd(8, 9, 4, 5, 6, 7); void setup() { Serial.begin(9600); Serial.println("Started"); // Debugging lcd.begin(16, 2); lcd.print("Hello!"); delay(3000); } void loop() { int key = analogRead(A0); //Serial.println(key); // Debugging lcd.clear(); // NOTE: Threshold values may differ if the board has different ADC voltage reference or ADC resolution // The below values are for Arduino UNO and Mega (5V reference, 10-bit ADC) if (key < 50) lcd.print("RIGHT"); else if (key < 200) lcd.print("UP"); else if (key < 400) lcd.print("DOWN"); else if (key < 600) lcd.print("LEFT"); else if (key < 800) lcd.print("SELECT"); else if (key < 1000) lcd.print("RST"); // If RST has a value, add here else lcd.print("Press key!"); delay(200); }

Tested Hardware

Board	Tested	Notes
Arduino Uno R3	✅	Fully supported
Arduino Uno R4 WiFi	✅	Fully supported
Arduino Uno R4 Minima	✅	Fully supported
Arduino Mega	✅	Fully supported
DIYables STEM V3 Board	✅	Fully supported
DIYables STEM V4 IoT Board	✅	Fully supported