Original JHD 20×4 character LCD Display with Blue Backlight

Product Description

The Original JHD 20×4 Character LCD Display with Blue Backlight is a popular text display module widely used in embedded systems, microcontroller projects, industrial panels, and prototype interfaces. This display features 20 characters per line across 4 lines and a bright blue backlight to ensure readability in various lighting conditions.

Based on the HD44780-compatible controller, the 20×4 LCD can be driven using a parallel interface (4-bit or 8-bit) directly by microcontrollers like Arduino, ESP32, STM32, and more. It is typically used for displaying sensor data, status messages, menus, and personalized user interfaces in IoT systems, robotics projects, and educational electronics.

Key Features

• 20 characters × 4 lines display

  
  

• Blue backlight for enhanced readability

  
  

• HD44780-compatible controller

  
  

• Parallel interface (4/8 bit mode)

  
  

• Works with Arduino, ESP32, STM32, and more

  
  

• Adjustable contrast via potentiometer

  
  

Package Includes

• 1 × JHD 20×4 Character LCD Display

  
  

• 1 × Mounting / header pins (varies by supplier)

  
  

Technical Specifications

Applications

• Text UI display for embedded systems

  
  

• Sensor readout & status panels

  
  

• Robotics interface displays

  
  

• IoT dashboard output

  
  

• Educational electronics projects

  
  

• Industrial test and control panels