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树莓派 GPIO操作.1(Python版本)
用到了io和time,先设置IO的map方式,然后是引脚。接着死循环,交替的让18脚输出高低电平,中间是时间。 原理是很简单,通过快速的改变18脚的开关状态来工作,延迟时间用音调计算而来。 初始化的韩苏护创建一个check_var的成员变量,包含了一个bool的变量,未 ...
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