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Modbus硬件控制01——什么是Modbus - 创客硬件开发 - 清泛IT社区，为创新赋能！
本帖最后由 mzb2012 于 2025-06-19 12:37 编辑
Modbus算是嵌入式领域比较经典一种通信协议，不管你是初学者，还是工作多年的工程师，都很有必要了解一下。1.什么是Modbus?1.什么是Modebus它是一个Bus，即总线协议。比如串口协议、IIC...
2026年1月5日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
...成的,如果您还未签到,请点此进行签到的操作. 我在 2026-01-05 06:43 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 12,另外我还额外获得了 小红花 10.我今天最想说:「该会员没有填写今日想说内容.」. 我在 2026-01-05 08:27 完...
2026年1月14日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
...成的,如果您还未签到,请点此进行签到的操作. 我在 2026-01-14 06:42 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 16,另外我还额外获得了 小红花 10.我今天最想说:「该会员没有填写今日想说内容.」. 我在 2026-01-14 08:28 完...
What does $@ mean in a shell script?
... They are often used to simply pass all arguments to another program (thus forming a wrapper around that other program).
The difference between the two syntaxes shows up when you have an argument with spaces in it (e.g.) and put $@ in double quotes:
wrappedProgram "$@"
# ^^^ this is correct and wi...
How to put a delay on AngularJS instant search?
I have a performance issue that I can't seem to address. I have an instant search but it's somewhat laggy, since it starts searching on each keyup() .
...
What is the iBeacon Bluetooth Profile
...ertisement packet looks like this:
d6 be 89 8e 40 24 05 a2 17 6e 3d 71 02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 00 00 00 00 c5 52 ab 8d 38 a5
This packet can be broken down as follows:
d6 be 89 8e # Access address for advertising data (this is always the same fix...
JavaScript property access: dot notation vs. brackets?
Other than the obvious fact that the first form could use a variable and not just a string literal, is there any reason to use one over the other, and if so under which cases?
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What are some common uses for Python decorators? [closed]
... are hidden functions. That was my first introduction and I got used to it form there.
– Marc Maxmeister
Jan 8 '15 at 2:16
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jQuery $.ajax(), $.post sending “OPTIONS” as REQUEST_METHOD in Firefox
...ms to indicate that a POST request with content type of 'application/x-www-form-urlencoded' should be sent as a 'simple request' (with no 'preflight' OPTIONS request). I found , however, that Firefox sent the OPTIONS request, even though my POST was sent with that content type.
I was able to make t...
Android: Tabs at the BOTTOM
... I am using this to post the tab widget onto the left side of the form.
– mr.j05hua
May 16 '12 at 3:19
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