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 ...

Co-creator of the awesome HDMIPi monitor Alex Eames, as well as other useful Raspberry Pi add-ons has this week launched a new campaign for his useful Raspberry Pi GPIO Quick Reference Ruler. The ...

Makers, developers and hobbyists that enjoy building projects using the awesome Raspberry Pi mini PC may be interested in a new digital and analog expansion board called the PIIO. The PIIO has been ...

Raspberry Pi has launched a new product that would make it easier to build robots out of LEGO components. The Build HAT (or Hardware Attached on Top), as it is called, is an add-on device that plugs ...

Are you not quite sure what embedded development platform to use? Are you interested in learning Linux without the hassle of installing a distro on a target computing machine? If you answered yes to ...

According to the project’s GitHub repository, it looks as though each split-flap has thirteen unique positions. The first ten are for numerals 0 through 9, and the rest are either blank, or used to ...

There’s also a Python library (basically a set of commands you can use to control the robot) available to go alongside the HAT, which will let you write software to control the robot parts you’ve got ...