假设，一个最简单的电路，只有一个数字输出端连接一个数字输入端。
Consider a simple circuit that consists of one digital input connected to a digital output.
最好让你的第一个机器人简单，所以一个现成的电路是最简单的。
It is best your first robot be simple, so a ready made circuit thingy is easiest.
RC低通电路是最简单的低通滤波器，一般称为无源低通滤波器。
RC low-pass circuit is the simplest low-pass filter, commonly known as passive low-pass filter.
应用推荐