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单板微型机通常都采用发光二极管(LED—Light—emitting diode)显示器作为输出。LED显示由七段组成一个字符(有的还增加一个小数点),每段是一个发光二极管。如图1所示。
Single-board microcomputers generally use LED (Light-emitting diode) displays as output. LED display consists of seven characters (some also add a decimal point), each segment is a light-emitting diode. As shown in Figure 1.