Generic 20×4 Character LCD Module | Blue Backlight | HD44780 Controller Interface
₹149.00₹250.00 (price_including_tax) (-40%)
Achieve crisp, clear text output with this robust 20×4 Character LCD Module. Perfect for integrating vital system information into your DIY projects, robotics, or industrial control panels. Engineered for consistent performance and straightforward integration with common microcontrollers.
This 20×4 character LCD module provides clear text display, essential for embedded systems and user interfaces.
Instantly display system status and data for effective project interaction and monitoring.
Seamlessly integrates with various microcontrollers, simplifying your development process significantly.
Built for durability, providing reliable performance in diverse embedded applications and projects.
The Engineering Behind 20×4 Character LCD Module
The 20×4 Character LCD Module is a fundamental component for human-machine interfaces, driven by the ubiquitous HD44780 controller or its compatible derivatives. This module provides a simple yet effective means to display 80 characters across four lines, making it ideal for presenting sensor data, system status, or menu options in embedded systems. Its parallel interface architecture allows for direct, reliable communication with microcontrollers, ensuring precise command execution and rapid data refreshing.
Built to an industrial standard, this LCD module offers robust performance suitable for both educational STEM projects and professional prototyping. Its construction prioritizes durability and legibility, making it a staple in applications ranging from home automation to industrial control panels where clear, text-based feedback is paramount. The module’s widespread adoption has cultivated a rich ecosystem of programming libraries and integration guides.
High-Contrast Blue Backlight
The integrated blue LED backlight significantly enhances visibility, ensuring that characters remain distinct and readable even in low-light environments. This crucial feature improves the user experience by reducing eye strain and making the display information accessible across a broader range of ambient lighting conditions, critical for portable or fixed installations.
Standard HD44780 Parallel Interface
Leveraging the industry-standard HD44780 controller, this module offers a highly compatible and well-documented parallel interface. This design choice simplifies integration with a vast array of microcontrollers, including Arduino and Raspberry Pi, by allowing developers to utilize existing, proven libraries and code examples. It supports both 4-bit and 8-bit communication modes, providing flexibility in optimizing pin usage versus data transfer speed.
Optimized for Performance & Integration
- Display Format: 20 Characters x 4 Lines
- Backlight Color: Blue
- Character Color: White
- Controller IC: HD44780 Equivalent
- Interface: 4-bit or 8-bit Parallel
- Operating Voltage: 5V DC
- Number of Pins: 16
- Standard Character Set: ASCII & Custom Character Support
Features & Benefits
- 20×4 Character Display: Offers ample space for displaying multi-line information and status messages clearly.
- Integrated HD44780 Controller: Ensures wide compatibility and simplifies programming with standard microcontroller libraries.
- Vibrant Blue Backlight: Provides excellent visibility in low-light conditions, significantly enhancing user readability.
- Adjustable Contrast: Allows fine-tuning of character appearance for optimal display clarity across viewing angles.
- Standard 16-Pin Interface: Facilitates straightforward connection to popular microcontrollers like Arduino and ESP32.
Pro-Grade Advantages
- Simple to interface with common microcontrollers.
- Widely supported with abundant libraries and resources.
- Clear and legible text display for system feedback.
- Cost-effective solution for basic display requirements.
Technical Considerations
- Requires multiple I/O pins, potentially limiting other sensor connections.
- Limited graphical capabilities, strictly character-based output only.
What controller chip does this LCD module utilize?
The 20×4 Character LCD Module typically integrates the industry-standard HD44780 controller, or a compatible equivalent, which is responsible for managing character display functions.
What is the recommended operating voltage for this module?
This LCD module typically operates at a standard 5V DC supply, ensuring broad compatibility with most microcontroller development boards and power systems.
Can this LCD be connected using fewer microcontroller pins?
Yes, it can operate in a 4-bit mode, reducing the required data/control pins to 6 or 7. Additionally, an I2C adapter can further minimize pin usage to just two pins.
What character sets are supported by the HD44780 controller?
The HD44780 controller supports a standard ASCII character set, extended character sets for various languages, and also allows for the creation of custom characters.
How is the display contrast adjusted on this module?
The display contrast is typically adjusted via a potentiometer connected to the Vo (contrast adjustment) pin on the LCD module, allowing for fine-tuning.
| Specification | Value |
|---|---|
| Display Format | 20 Characters x 4 Lines |
| Backlight Color | Blue |
| Character Color | White |
| Controller IC | HD44780 Equivalent |
| Interface | 4-bit or 8-bit Parallel |
| Operating Voltage | 5V DC |
| Logic Voltage | 5V DC |
| Number of Pins | 16 |
| Viewing Angle | 6 o’clock |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
Additional information
| Technology | LCD (Character) |
|---|---|
| Operating Voltage | 5V |
| Control Interface | Parallel (4-bit/8-bit) |
| Channels | 20×4 Characters |
| Main Controller | HD44780 |
| Difficulty Level | Beginner/Intermediate |
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