模拟输入可以将0-5V的电压映射为0-1023的值上传下列程序观察串口的 输出将电位器连接到模拟输入管脚，模拟输出管脚接LED观察灯光亮度的变化情况LED亮度随着模拟输入值的变化将会怎样变化？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