This is a graphic LCD display module, likely a model such as the 12864ZW-10.

It is used in various electronic projects and devices, including 3D printers like the Creality Ender 3.

The board features a built-in controller and connection pins for interfacing with microcontrollers like Arduino.

It typically provides a 128x64 pixel resolution for displaying text or graphics.

The specific color of the backlight can vary, such as blue or yellow-green.

They are used for a project not long.

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