[原创]在树莓派上使用腾达(Tenda)W311MI迷你无线USB网卡(RT5370芯片)/Using Tenda W311MI mini wireless USB adapter(based on RT5370 chipset) on Raspberry Pi

转载请注明出处:http://www.codelast.com/

For non-Chinese readers:
I'm a software engineer in Shanghai, China, and since I bought a Raspberry Pi, I spent some spare time on it and I'm glad to share something with Pi users all over the world, so this article has two languages: Chinese & English, and I try to translate the Chinese to English as accurately as possible, but, there might be some translation mistakes, so if you don't know what I mean in the article, just leave a comment, and I'll reply when I get an answer. Also welcome to contact me via Email.

Raspberry Pi是什么?
引用维基百科的一句话:

The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.

简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
In short, Pi is an ARM-based mini computer which has a credit card size.

在阅读本文之前,我建议你阅读另外一篇配置树莓派的文章,本文与它有一些联系。
Before reading this article, I recommend you to read another one on Pi configuration because this article has some connection with it.

为了能让树莓派摆脱每次使用都要插网线的麻烦,我最终还是决定为它配备一块USB无线网卡。在Google了一番之后,我发现很多树莓派用户都提到基于Ralink RT5370芯片的USB无线网卡,于是我购买了一个基于RT5370芯片的腾达(Tenda)W311MI迷你无线USB网卡(如下图所示),非常便宜的白菜价:只要¥30。
To get rid of the inconveniency of connecting a network cable to Raspberry Pi I decided to equip it with a wireless USB adapter. After Googling the Internet I found that many Pi users mention the wireless USB adapter based on Ralink RT5370 chipset, so I bought one too - the Tenda W311MI 150Mbps Wireless Mini USB Adapter(shown as below), which based on RT5370 and has a very low price: only $4.8 .
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[原创]通过Raspberry Pi(树莓派)的GPIO接口控制步进电机/Control stepper motor through the GPIO on Raspberry Pi

转载请注明出处:http://www.codelast.com/

Raspberry Pi是什么?
引用维基百科的一句话:

The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.

简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
In short, Pi is an ARM-based mini computer which has a credit card size.

在阅读本文之前,请确保你已经阅读过我的另外几篇关于Pi的文章,因为本文与它们有或多或少的关系。
Before reading this article, please make sure that you've read some other articles of mine on Pi, because this article is more or less based on them.

【1】实验目的 / Experiment purpose
在树莓派上编写一个C程序,通过其GPIO口控制步进电机的转动方向以及速度。
Write a C program to control the direction & speed of rotation of a stepper motor through the GPIO on Raspberry Pi.
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[原创]通过Raspberry Pi(树莓派)的GPIO接口控制发光二极管/Control LED through the GPIO on Raspberry Pi

转载请注明出处:http://www.codelast.com/

Raspberry Pi是什么?
引用维基百科的一句话:

The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.

简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
In short, Pi is an ARM-based mini computer which has a credit card size.

在阅读本文之前,请确保你已经阅读过我的另外几篇关于Pi的文章,因为本文与它们有或多或少的关系。
Before reading this article, please make sure that you've read some other articles of mine on Pi, because this article is more or less based on them.

通过Raspberry Pi的GPIO口来控制发光二极管已经不是什么新鲜事了,网上有大量的教程和资源可查。为了测试一下控制GPIO输出的功能,我也实践了一次。
首先声明,我对硬件并不了解,所以下文可能有错误,如果你发现了,请留言告诉我,非常感谢。
It's nothing new to control LEDs through Pi's GPIO, a lot of tutorials & resources are available on the Internet now. But I tried to do it myself too for the sake of testing the GPI output functionality.
First I want to remind the readers that I'm not a hardware guy so this article may contains some mistakes, and if you find that, please leave comments to tell me, thanks in advance.

文章来源:http://www.codelast.com/
【1】实验目的 / Experiment purpose
写一个简单的程序,控制Raspberry Pi的GPIO口输出高、低电平,从而让接在GPIO口上的发光二极管闪烁。
Write a simple program to control the GPIO on Pi to output high or low level to make the LED which connected to GPIO blink.
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[原创]Raspberry Pi/树莓派 文章合集

转载请注明出处:https://www.codelast.com/

注:带有 ♬♬♬♬♬ 标志的是文章合集。

Raspberry Pi是什么?
引用维基百科的一句话:

The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.

简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
下面是我在折腾Pi的过程中的一些记录,仅供参考。

➤ 树莓派视频教程

➤ Raspberry Pi(树莓派)配置记录/Configure the Arch Linux ARM on Raspberry Pi

➤ 在Raspberry Pi(树莓派)上用OpenCV来操纵摄像头拍照/Use OpenCV on Raspberry Pi to Controll a Webcam to Take Photos

➤ 通过Raspberry Pi(树莓派)的GPIO接口控制发光二极管/Control LED through the GPIO on Raspberry Pi

➤ 通过Raspberry Pi(树莓派)的GPIO接口控制步进电机/Control stepper motor through the GPIO on Raspberry Pi
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[原创]在Raspberry Pi(树莓派)上用OpenCV来操纵摄像头拍照/Use OpenCV on Raspberry Pi to Controll a Webcam to Take Photos

转载请注明出处:http://www.codelast.com/

For non-Chinese readers:
I'm a software engineer in Shanghai, China. Since I bought a Raspberry Pi, I spent some spare time on it and I'm glad to share something with Pi users all over the world, so this article has two languages: Chinese & English, and I try to translate the Chinese to English as accurately as possible, but, there might be some translation mistakes, so if you don't know what I mean in the article, just leave a comment, and I'll reply when I get an answer. Also welcome to contact me via Email.

Raspberry Pi是什么?简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
In short, Pi is an ARM-based mini computer which has a credit card size.

本文主要内容:
在Raspberry Pi上,通过调用OpenCV库,自己写一个简单的C程序来控制摄像头拍照,并保存图片。
在阅读本文之前,请确保你已经阅读过我的另一篇配置Pi的文章,因为本文是在它的基础上进行的。
The main content of this article:
Write a simple C program by invoking the OpenCV library on Raspberry Pi to control a webcam to take photos & save them.
Before reading this article, please make sure that you've read my another article about Pi configuration, because this article is based on that.

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[原创]Raspberry Pi(树莓派)配置记录/Configure the Arch Linux ARM on Raspberry Pi

转载请注明出处:http://www.codelast.com/

For non-Chinese readers:
I'm a software engineer in Shanghai, China, and since I bought a Raspberry Pi, I spent some spare time on it and I'm glad to share something with Pi users all over the world, so this article has two languages: Chinese & English, and I try to translate the Chinese to English as accurately as possible, but, there might be some translation mistakes, so if you don't know what I mean in the article, just leave a comment, and I'll reply when I get an answer. Also welcome to contact me via Email.

Raspberry Pi
是什么?
引用维基百科的一句话:

The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools.

简单地说,它就是一个基于ARM CPU的、信用卡那么大的迷你计算机。
In short, Pi is an ARM-based mini computer which has a credit card size.
阅读更多