The display takes LED Dot-matrix as its display device, and ARM core microcontroller as its control device.

该显示屏采用LED模块作为显示器件，采用ARM核单片机作为控制器件。

youdao

The display takes LED Dot-matrix as its display device, and ARM core microcontroller as its control device.

该显示屏采用LED模块作为显示器件，采用ARM核单片机作为控制器件。

youdao