1604 Backlight Yellow LCD 16X4

Alphanumeric 16 x 4 Layout: Displays up to 64 characters across 4 lines (16 characters per line) for clear system status reports, telemetry data, and parameter readouts.

Warm Yellow-Green LED Backlight: Features a high-contrast display matrix with dark characters over a soft yellow-green illuminated background, ensuring easy readability in low-light environments.

Standard HD44780 Driver Support: Powered by the industry-standard HD44780 controller chip, offering native compatibility with the built-in LiquidCrystal library in the Arduino IDE.

4-Bit and 8-Bit Parallel Interface: Supports both 4-bit and 8-bit parallel connection modes to adapt flexibly to your available microcontroller I/O pins.

Adjustable Contrast & Backlight Control: Includes dedicated header pin pads for precise screen contrast tuning via an external potentiometer and backlight power management.

Module Construction: Built on a multi-layer FR-4 glass epoxy PCB featuring standard 2.54mm header pin pads and a protective metal LCD bezel.

Power Supply & Operating Voltage: Operates on standard 5V DC logic power. Use logic level shifters when connecting to 3.3V boards (like ESP32 or Raspberry Pi Pico) to ensure reliable operation.

Handling Precautions: Hold carefully by the outer circuit board edges. Avoid applying direct pressure or physical impact to the central liquid crystal display glass.

Environmental Limits: Operating temperature range spans -10°C to +60°C. Keep protected from static discharge, conductive metal particles, and direct liquid exposure.

Unique 4-Line Compact Form Factor: Position as a versatile mid-size option for projects that need more vertical text rows than a standard 16x2 screen without the larger footprint of a 20x4 panel.

Retro Warm Aesthetics: Highlight the classic yellow-green backlight as an eye-friendly, retro alternative to high-brightness blue screens for custom control panels.

Recommended Cross-Sell Add-ons: Pair with PCF8574 I2C Backpack Adapters (to convert wiring down to just 2 I2C pins), 10K Ohm Potentiometers, and Arduino UNO / Mega / Nano Boards.

Ideal for Compact Dashboards: Great choice for displaying multi-sensor readings, battery state indicators, desktop weather stations, and hardware diagnostic menus.