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 ...
本文介绍了如何在NCS（nRF Connect SDK）下配置和使用GPIO。内容包括以下三个部分： nRF Connect SDK是基于Zephyr操作系统的，因此可以使用Zephyr的GPIO API来配置和使用GPIO。 读写GPIO，其中GPIO读取可以使用Polling模式和中断模式。 GPIO device的添加和获取 以下是在Device Tree中 ...
The Raspberry Pi is a great machine to learn the ins and outs of blinking pins, but for doing anything that requires blinking pins fast, you’re better off going with a BeagleBone. This has been the ...
The Raspberry Pi has been very popular among hobbyists and educators ever since its launch in 2011. The Raspberry Pi is a credit-card-sized single-board computer with a Broadcom BCM 2835 SoC, 256MB to ...
In addition to being a serviceable single board computer, the Raspberry Pi also has a header full of GPIO pins at your beck and call. [Tedbot] sent in a great tutorial on using these pins with Python, ...
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