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Modbus硬件控制03——485串口助手控制继电器 - 创客硬件开发 - 清泛IT社区...
本帖最后由 mzb2012 于 2025-08-28 21:58 编辑
1.软件准备485串口调试助手，它集成485调试功能，自带CRC校验，非常易于使用。
2.硬件连接
通过USB转485接入PC
3.测试步骤
发送字符串，一共两条指令
第一条是闭合继电器
第二...
No visible cause for “Unexpected token ILLEGAL”
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I was trying to run some example code out of a Javascript book I'm reading and was surprised it didn't run in the console.
Apparently, copying from the PDF introduces some unexpe...
How to perform better document version control on Excel files and SQL schema files
...
[diff "xls"]
binary = true
textconv = /usr/bin/py_xls2txt
[diff "pdf"]
binary = true
textconv = /usr/bin/pdf2txt
[diff "doc"]
binary = true
textconv = /usr/bin/catdoc
[diff "docx"]
binary = true
textconv = /usr/bin/docx2txt
The Pro Git book has a good chapter on t...
/data/user/0/xxxx/files（内部存储）和 /storage/emulated/0/Android/data...
...册应用可能将缓存图片放在此处，用户能看到但无法直接编辑。
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完全对用户隐藏，即使启用“显示隐藏文件”也无法查看。
(2) 媒体扫描外部存储私有目录：
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– pet...
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...
Tree data structure in C#
...ngs have changed but right now the book is freely available to download as PDF from the C5 site.
– Oskar
Aug 6 '09 at 12:10
4
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数据存储组件 · App Inventor 2 中文网
...。 如果上面服务地址设置“DEFAULT”的话，这个值请不要编辑，系统会自动填上。
一个系统管理员还可以为您提供一个特殊值，可用于在彼此之间共享数据来自多人的多个项目。如果使用您自己的Redis服务器，请在服务器的配置...
phantomjs not waiting for “full” page load
...e [paperwidth*paperheight|paperformat] [zoom]');
console.log(' paper (pdf output) examples: "5in*7.5in", "10cm*20cm", "A4", "Letter"');
phantom.exit(1);
} else {
address = system.args[1];
output = system.args[2];
if (system.args.length > 3 && system.args[2].substr(-4)...
Eclipse HotKey: how to switch between tabs?
...thers Short Cuts
Link : http://www.shortcutworld.com/en/win/Eclipse.html
Pdf : http://eclipse-tools.sourceforge.net/Keyboard_shortcuts_%283.0%29.pdf
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