This I2C (IIC) module provides a compact interface between an I2C bus and a 1602 LCD module. It converts serial I2C commands into the parallel signals required by HD44780compatible 1602 displays, enabling control of a standard character LCD with minimal wiring. Key benefits Reduces pin usage: drive a 1602 LCD from a twowire I2C bus instead of multiple parallel data lines. Easy integration: compatible with common microcontroller platforms and I2C libraries, simplifying firmware development. Clean wiring for DIY projects: a small interface board simplifies prototyping and reduces clutter in your electronics projects. Broad LCD compatibility: designed to work with 1602 (and other HD44780type) LCD modules that use the standard parallel interface. Flexible backlight control: many boards provide backlight control through a dedicated line, offering visible status and improved readability (check documentation for your exact board). Key attributes Functionality: I2Ctoparallel converter for 1602 LCD modules, enabling use of HD44780compatible displays via I2C. Compatibility: HD44780based 1602 LCD modules and I2Cenabled microcontroller projects. Interface and conversion: utilizes an I2C bus to drive the LCD's parallel data and control signals through an onboard I/O expander. Size and form factor: compact interface board designed to fit in DIY projects and standard enclosures alongside an LCD module. Material and build: standard printed circuit board with typical electronic components for reliable operation in hobbyist and prototype builds. Performance and reliability: provides a straightforward serialtoparallel conversion path, reducing wiring complexity while maintaining dependable LCD operation in common hobbyist setups. Backlight support: backlight control is commonly available on this type of board; verify with the specific model's documentation. Power and operation: designed to integrate with common I2Cenabled control systems and microcontrollers in DIY and educational kits. Specifications and usage notes Purpose: Interface board / port adapter / transfer converter to drive a 1602 LCD from an I2C bus. LCD type: HD44780compatible 1602 (16x2) character LCD modules. Control approach: serial I2C commands translated to the LCD's parallel interface via an I/O expander. Typical usage: ideal for projects where MCU pins are at a and a twowire I2C interface is preferred. Common use cases Arduino projects: multiple parallel connections to a 1602 LCD with a single I2C connection, simplifying wiring and code. Raspberry Pi displays: drive a 16x2 character display from the Pi's I2C bus for dashboards, status screens, or educational demonstrations. Prototyping and education: quick, lowpincount LCD experiments and teaching demonstrations that illustrate I2Ctoparallel conversion and LCD control. How to use Connect the I2C interface to the microcontroller or singleboard computer via the I2C bus (SDA and SCL) and power/ground. Connect the 1602 LCD module to the interface board using the LCD's standard parallel pins (RS, EN, D4D7, plus backlight line if available). Load firmware or libraries that support I2C LCD backpacks and use the standard LCD commands to display text and simple graphics. Consult the specific board's documentation for pin mappings and any optional features (such as backlight control or address selection) to ensure correct wiring and operation. This description reflects a generic I2Cto1602 LCD interface board suitable for DIY kits and related fittings. It preserves the core function of converting I2C signals to the parallel LCD interface while providing practical details on benefits, attributes, and use cases to support clear, confident decisions.