Power and interface Power supply: +5V Interface: supports I2C protocol Display controls: backlight is included with a contrast adjustment potentiometer Output: 4 line output is simplified Key benefits Easy 5V integration across common microcontroller projects I2C control minimizes I O usage and simplifies wiring Readable display under varying lighting with adjustable backlight and contrast Simplified 4 line output reduces wiring and installation complexity What this enables Ideal for hobbyist or educational projects that require a compact 4 line display controlled via I2C Suitable for embedded prototypes and development kits where wiring simplicity and clear visibility are important Useful in demonstrations or labs where users adjust contrast to optimize readability Specifications and attributes Function: 5V powered display interface with I2C control and adjustable backlight/contrast Compatibility: I2C capable controllers and development boards Size and material: not specified in the available information Performance: straightforward I2C communication with user adjustable display visibility Use scenarios Scenario 1: A microcontroller project (Arduino, ESP32, etc.) that requires a small 4 line display controlled over I2C, with adjustable backlight for readability in different environments Scenario 2: A compact instrumentation panel in a prototype or educational lab, where the simplified 4 line output helps minimize wiring while preserving clear status information Scenario 3: A learning setup for students to practice interfacing I2C displays, adjust contrast with the potentiometer, and observe how backlight affects readability in various lighting conditions Notes Physical size and material are not specified in the provided information No additional features beyond the stated power, interface, backlight, contrast adjustment, and simplified 4 line output are described