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串口Read不到数据的问题 - 用户反馈 - 清泛IT社区，为创新赋能！
用户发送的是 8n1 的格式，但是ai2的串口貌似不支持这种格式。写串口正常，读串口为空，len为0。
目前经过测试验证，应该是 \n 作为结束符的。发送时，也是。
ai2使用 physicaloid 库完成的串口功能。
【天气API】对接国内免费好用的天气API - App应用开发 - 清泛IT社区，为创新赋能！
...天气API更新了认证方式，由ApiKey换成了WebToken，不是一般的复杂。因此需要更换一款天气API。
此帖子记录API使用及开发过程。目前已知的有：
1. 高德地图天气 API 免费版可用资源
30万次/日，200次/秒并发
实时天气预报
未来 ...
IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
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This can also happen if the site is configured to use the IIS URL Rewrite module but it is not installed.
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Change IPython/Jupyter notebook working directory
... from jupyter_notebook_config.py file ## DEPRECATED use base_url #c.NotebookApp.base_project_url = '/' ## The base URL for the notebook server. c.NotebookApp.base_url = '/'
– Vodyanikov Andrew Anatolevich
Apr 7 at 6:42
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How can I avoid Java code in JSP files, using JSP 2?
...ged in, just continue request.
}
}
When mapped on an appropriate <url-pattern> covering the JSP pages of interest, then you don't need to copypaste the same piece of code overall JSP pages.
If you want to invoke some Java code to preprocess a request, e.g. preloading some list from a d...
How to use UTF-8 in resource properties with ResourceBundle
...null;
InputStream stream = null;
if (reload) {
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AngularJS- Login and Authentication in each route and controller
...rovider) {
$routeProvider
.when('/home', {
templateUrl: 'templates/home.html',
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CSS: Set a background color which is 50% of the width of the window
... background-color: cyan;
}
body {
height: 100%;
background-image: url('http://i.imgur.com/9HMnxKs.png');
background-repeat: repeat-y;
background-size: 50% auto;
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Example: http://jsfiddle.net/6vhshyxg/2/
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Image resizing client-side with JavaScript before upload to the server
...al file as 'blob')
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</script>
It includes a bunch of support detection and polyfills to make sure it works on as many browsers as I could ma...
python requests file upload
...ues = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
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The filename will be included in the mime header for the specific field...