The 20×4 LCD Blue Display is a high-performance alphanumeric screen capable of displaying 20 characters across 4 lines, making it perfect for projects that require more information on screen at once. With a crisp blue backlight and white characters, it offers excellent visibility in various lighting conditions, making it ideal for microcontroller-based applications such as Arduino, Raspberry Pi, and robotics projects. Product Overview: Display Format: 20 characters × 4 lines Character Size: 5×8 dot matrix per character Backlight Color: Blue with white text Interface: 16-pin parallel (HD44780 compatible) or I2C (with adapter) Operating Voltage: 5V DC Contrast Control: Adjustable via onboard or external potentiometer Dimensions: Approx. 98 × 60 mm (may vary slightly by model) Key Features: Large 4-line display for displaying menus, data logs, or sensor readings Compatible with popular microcontrollers (Arduino, ESP32, Raspberry Pi, etc.) HD44780 controller supported by common LCD libraries (e.g., LiquidCrystal) Optional I2C adapter reduces pin usage to just two wires (SDA/SCL) Excellent for user interfaces, system monitoring, and control panels Applications: IoT dashboards and sensor readouts Arduino-based data loggers and displays DIY measurement tools Home automation control panels Educational electronics and robotics projects Optional Accessories: I2C backpack module for simplified wiring Jumper wires and contrast adjustment potentiometer The 20×4 Blue LCD Display offers more screen space and clear visibility, making it a great choice for any project that demands real-time feedback or multi-line information display.
