Description
Compact 16×4 Character Display – 5 V HD44780 Compatible LCD
This 16-column by 4-row alphanumeric LCD is based on the ubiquitous HD44780 controller, delivering crisp 5×7 dot matrix characters with a full 2000‑character write buffer. Powered by a single 4.5 V–5.5 V supply, the module integrates contrast adjustment via an onboard potentiometer, enabling automatic tuning for optimal readability under varying ambient light conditions. Designed for low‑power microcontroller projects, it supports both 8‑bit and 4‑bit parallel data interfaces, allowing flexible wiring with minimal pin count.
Ideal for real‑time status displays, menu navigation, and debugging output, the module combines simple SPI or I²C adapters for more modern microcontrollers, while retaining unmatched compatibility with legacy AVR and PIC systems. Its robust glass‑mount screen and edge‑mounted connector make it a repeat‑able, form‑factor‑friendly choice for embedded systems.
- Key Spec 1: 16 × 4 character grid, 5×7 dot matrix per character
- Key Spec 2: 400 mA peak current, 5 V supplied, contrast via potentiometer
- Key Spec 3: HD44780 controller, 4‑/8‑bit parallel interface, optional I²C module
- Common Use Case: Displaying system status, real‑time sensor data, or interactive menus on microcontroller projects
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