It can be used to measure the luminous intensity, forward voltage, reverse current of each luminous dot in all kinds of LED luminous dot matrix.
能测试各种LED发光矩阵每个发光元的发光强度，正向压降和反向电流。
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。
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。
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