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16x2 LCD Display (Blue Backlight)

SKU: 618YCEEUZF
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4.1 (62 reviews)
The 16x2 LCD Display (Blue Backlight) is a popular alphanumeric liquid crystal display module capable of displaying 16 characters per line across 2 lines. Based on the industry-standard HD44780 controller or a compatible chipset, it provides a simple and reliable solution for displaying text, numbers, symbols, and custom characters in embedded systems. The module features white characters on a blue...
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The 16x2 LCD Display (Blue Backlight) is a popular alphanumeric liquid crystal display module capable of displaying 16 characters per line across 2 lines. Based on the industry-standard HD44780 controller or a compatible chipset, it provides a simple and reliable solution for displaying text, numbers, symbols, and custom characters in embedded systems. The module features white characters on a blue LED backlight, offering excellent readability in both low-light and normal lighting conditions. (lumex.com)

The display supports both 4-bit and 8-bit parallel communication modes, making it easy to interface with Arduino, ESP32, STM32, Raspberry Pi (using GPIO or an I2C adapter), PIC, AVR, and other microcontrollers. It also includes a built-in 5×8 dot matrix character generator, allowing users to display standard ASCII characters as well as create up to 8 custom characters for icons and symbols.

Operating from a 5V DC supply, the 16x2 LCD is widely used in industrial equipment, home automation systems, robotics, measurement instruments, consumer electronics, and educational projects. Its low power consumption, simple interface, and extensive software support make it one of the most commonly used character LCD modules for embedded applications.

Key Features

  • Displays 16 characters × 2 lines
  • Blue LED backlight with white characters
  • HD44780 compatible controller
  • Supports 4-bit and 8-bit parallel interface
  • Built-in 5×8 dot matrix character font
  • Supports up to 8 custom user-defined characters
  • Adjustable display contrast
  • Cursor and blinking cursor support
  • High readability and wide viewing angle
  • Low power consumption
  • Standard 16-pin interface
  • Compatible with I2C LCD backpack modules
  • Easy interfacing with Arduino, ESP32, STM32, Raspberry Pi, AVR, and PIC
  • Long operational life
  • Ideal for embedded systems and display applications

Shipping & Returns

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Specifications

Specifications:

Display Type: Alphanumeric LCD Module
Display Format: 16 Characters × 2 Lines
Controller IC: HD44780 or Compatible
Display Color: White Characters on Blue Backlight
Character Size: 5 × 8 Dot Matrix
Operating Voltage: 5V DC
Logic Voltage: 5V TTL
Operating Current: Approximately 1mA (Logic)
Backlight Type: Blue LED
Backlight Current: Approximately 15–30mA
Interface: 4-bit or 8-bit Parallel
Number of Pins: 16
Custom Characters: Up to 8 User-Defined Characters (CGRAM)
Viewing Angle: 6 O'Clock (Typical)
Character Font: ASCII Compatible
Contrast Adjustment: External Potentiometer Required
Operating Temperature: 0°C to +50°C (Standard Version)
Storage Temperature: -20°C to +70°C
Module Dimensions: Approximately 80mm × 36mm × 12mm
Viewing Area: Approximately 64.5mm × 16mm
Mounting Type: PCB Through-Hole
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi (GPIO or I2C Adapter), PIC, AVR, 8051 and other microcontrollers

Additional Resources

LCD Display.PDF

FAQ

1. What is the 16x2 LCD Display (Blue Backlight) used for?

The display is used to show text, numbers, symbols, sensor readings, menus, and system status information in embedded systems, industrial equipment, robotics, home automation, and educational electronics projects.

2. Can the 16x2 LCD Display be used with Arduino and ESP32?

Yes. The display is fully compatible with Arduino, ESP32, STM32, Raspberry Pi (using GPIO or an I2C adapter), PIC, AVR, and other microcontrollers. It supports both 4-bit and 8-bit communication modes.

3. What is the advantage of using the display in 4-bit mode?

Using 4-bit mode reduces the number of required GPIO pins by transmitting data four bits at a time, making it ideal for projects where microcontroller I/O pins are limited.

4. Can custom characters be displayed on the LCD?

Yes. The HD44780-compatible controller includes Character Generator RAM (CGRAM), allowing users to create and display up to 8 custom characters, such as icons, arrows, or special symbols.

5. Can this LCD be converted to I2C communication?

Yes. By attaching a compatible I2C LCD backpack (typically based on the PCF8574 I/O expander), the display can communicate over the I2C interface using only the SDA and SCL pins, simplifying wiring and reducing GPIO usage.