The OKY3525-1 module is a LED display manufactured by OKYSTAR, with 5VDC operating power. It consists of two integrated circuits, the 74HC138 and 74HC59, and is used for automatic display. This module is capable of displaying a 16-character message on its LED screen with a Flash writing rate of up to 13 times the speed of a dot-matrix display. The OKY3525-1 module was designed to handle real-time data entry and display applications, and is suitable for a variety of indoor lighting displays.