16×2 Character LCD Module Blue Display

Features of this 16×2 Character LCD Display Module

Display Specifications

This module features a standard 16-character × 2-line display format, capable of displaying up to 32 characters simultaneously. The STN-Blue negative mode with white LED backlight provides a high-contrast blue background with crisp white characters for excellent readability. Each character is formed by a 5×8 dot matrix, supporting the standard ASCII character set and up to 8 user-defined custom characters.

Electrical Characteristics

The module operates with a single power supply ranging from 4.5V to 5.5V, with a typical operating voltage of 5.0V. It features low power consumption with a typical supply current of only 3.0mA (excluding backlight). The white LED backlight has a typical forward voltage of 4.5V and can be easily driven directly from a 5V power supply.

Interface and Control

Equipped with an ST7066U controller, fully compatible with the HD44780 instruction set. The module supports both 4-bit and 8-bit parallel data transfer modes and features simple operation through RS, R/W, and E control lines. It provides 11 basic instructions including Clear Display, Return Home, Display ON/OFF, Cursor/Display Shift, and more. The address counter automatically increments or decrements for easy continuous data display.

Mechanical and Environmental Specifications

The module comes in a standard 80.0×36.0×13.1mm outline dimension, compatible with mainstream 16×2 mounting footprints. It operates reliably across a wide temperature range from -20°C to +70°C, with a storage temperature range of -30°C to +80°C, making it suitable for industrial applications. Response time is TON ≤ 230ms and TOFF ≤ 150ms.

Ease of Integration

A standard 16-pin 2.54mm pitch interface facilitates easy connection with development boards and breadboards. Contrast can be adjusted via an external potentiometer to optimize visibility under different lighting conditions. The module offers broad software compatibility, working seamlessly with HD44780 library examples on mainstream platforms such as Arduino and Raspberry Pi.

Where to use 16×2 Character LCD Display Module?

This 16×2 Character LCD Display Module is ideal for a wide range of applications that require displaying alphanumeric data with low power consumption and high visibility.

Industrial Control: Displaying operational status, counters, and error codes on PLCs, power supplies, and industrial machinery.

Medical Devices: Showing readings on patient monitors, infusion pumps, and diagnostic equipment.

Consumer Electronics: Used in printers, routers, security systems, and audio/video equipment for status display.

Automotive Applications: Dashboard information panels, car audio systems, and GPS devices.

Point of Sale (POS) Terminals: Displaying transaction amounts and item names.

DIY Projects and Hobbyist Kits: Perfect for Arduino, Raspberry Pi, and other micro controller-based projects due to its simple parallel interface.

What advantages does this 16×2 Character LCD Display Module offer to development projects?

This module provides several key advantages for developers and engineers:

Simple Integration: Utilizes the industry-standard HD44780 (or equivalent ST7066U) parallel interface, making it extremely easy to interface with almost any microcontroller. Extensive software libraries and code examples are readily available.

Low Power Consumption: Suitable for battery-powered applications due to its efficient LCD technology and LED backlight options.

Excellent Readability: The STN-Blue mode with White backlight offers high contrast and sharp characters, making the display easily readable in various lighting conditions, especially in dim environments.

Cost-Effective: 16×2 Character LCD is a very economical solution compared to graphic displays or OLEDs for simple text-based user interfaces.

Proven Reliability: With a wide operating temperature range (-20°C to +70°C) and adherence to strict inspection standards, it is a robust choice for commercial and industrial applications.

Compact and Standardized: The 80.0×36.0mm outline dimension and mounting holes make it a drop-in replacement for many standard 16×2 modules, simplifying PCB design.

What customization services can we provide for this 16×2 Character LCD Display Module?

We offer a variety of customization services to meet specific project requirements:

Backlight Color: While this spec now features White, we can also provide options for Blue, Red, Green, Amber, or RGB backlights.

LCD Mode: We can change the display effect to STN-Yellow-Green (Positive), TN Reflective (no backlight needed), or FSTN (for higher contrast) .

Interface Options: We can integrate an I2C or SPI adapter board directly onto the module for easier connectivity with modern micro controllers.

Cable Assemblies: Customization of pin-out, addition of cables, connectors, or pin headers in different positions.

Top PCB Metal Bezel: Custom design for the top metal bezel, including customer logos, specific cutouts, or custom colors.

Software/Fonts: Loading custom character sets or different language fonts (Japanese, European, etc.) into the CGROM is possible.

Display Content: Pre-programming specific startup messages or static logos.

FAQs of this 16×2 Character LCD Display Module

Q1: What is the controller IC used in this 16×2 Character LCD module?

A1: It uses the ST7066U (or equivalent), which is fully compatible with the industry-standard HD44780. This ensures broad software compatibility.

Q2: What is the 16×2 Character LCD supply voltage?

A2: The logic supply voltage (VDD) is 5.0V typical (4.5V to 5.5V range) . The LCD drive voltage (V0) is generated internally via a voltage divider, but you can also adjust it externally to set the contrast.

Q3: How do I control the contrast?

A3: You need to connect a variable resistor (e.g., 10k-20k pot) between VDD and VSS, with its wiper connected to pin 3 (V0). Adjusting the potentiometer changes the voltage at V0, which controls the contrast.

Q4: Can I use this 16×2 Character LCD module with a 3.3V micro controller?

A4: The module is specified for 5V logic. While many 5V LCDs can work at 3.3V, the contrast will be very faint, and the response time will be slower. You would need a logic level shifter or a specific 3.3V version of the module. We recommend operating at 5V for optimal performance.