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Category: raspberry pi

raspberry pi

Raspberry Pi的GPIO中断编程

Huang Shiyang July 22, 2016July 22, 2016

背景介绍 树莓派的GPIO引脚不仅可以输出高低电平,也可以当做输入端口(可以想象成键盘输入),当GPIO接入的是高电平,GPIO的值可以认为是1,如果是低电平则是0。如下图所示,可以使用一个Push... Read More | Share it now!

raspberry pi

使用 RPI.GPIO 模块的脉宽调制(PWM)功能

Huang Shiyang July 19, 2016July 19, 2016

脉宽调制(PWM)是指用微处理器的数字输出来对模拟电路进行控制,是一种对模拟信号电平进行数字编码的方法。在树莓派上,可以通过对GPIO的编程来实现PWM。 创建一个 PWM 实例: p =... Read More | Share it now!

raspberry pi

树莓派开发系列教程9——树莓派GPIO控制

Huang Shiyang July 19, 2016July 19, 2016

一、常用开源工程简介 树莓派内核中已经编译自带了gpio的驱动,我们常通过一些第三方写好的库函数来完成具体的操作,比较常见的操作库函数有: 1、python... Read More | Share it now!

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