论文部分内容阅读
通常情况下,两只发光二极管最多只能指示四种不同状态,笔者通过改进电路,使两只发光二极管能指示八种不同状态。
Under normal circumstances, the two light-emitting diodes can only indicate at most four different states, the author by improving the circuit so that two light-emitting diodes can indicate eight different states.