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 ...

Mike Lopez has created a new piece of hardware that Raspberry Pi enthusiasts may be interested in called the Avocado Pi. The new piece of hardware has been specifically designed to provide a way of ...

The Raspberry Pi single-board computer and all its variants have captured the imaginations of DIY enthusiasts and budding hobbyists alike. With the latest model, the Raspberry Pi 5, the mini-PC is ...