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Modbus硬件控制02——modbus继电器 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...，还具备一个标准的 RS-485 通讯接口，通信使用MODBUS-RTU 协议。本模块支持所有常见波特率、停止位和校验位的组合，并可任意设置 MODBUS地址。本模块必须与上位机共地。
三、模块地址
三、命令
{:8_315:}
AI伴侣现已正式升级为“AppInventor学院”App！ - App Inventor 2 中文网 -...
...保护措施都已经申请完成，各开源项目我们会遵循其开源协议，售卖的源码必定是我们自己原创或合作有版权的，更不会去抄袭别人的作品、视频等。然后，MIT的Logo我们用了一段时间，可能你们也有所疑问是否构成侵权，关于MI...
Apache: client denied by server configuration
...to access a directory. It is turned on by DEFAULT in the httpd.conf that ships with Apache. You can see the enabling of the feature with the directive
Require all denied
This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add t...
How to detect when WIFI Connection has been established in Android?
... really very useful. It works fine but in my case it come in onReceive multiple time in my case 4 times so my code execute multiple time.
I do some modification and make as per my requirement and now it comes only 1 time
Here is java class for Broadcast.
public class WifiReceiver extends Broadcas...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
... they opt-in.
window['ga-disable-UA-XXXXXX-Y'] = false;
//...snip...
//set a cookie to express that the user has opted-in to tracking, for future pageviews
_gaq.push(['_trackPageview']); // now run the pageview that you 'missed'
}
Opt Out
With this approach, you'd allow...
How do I redirect output to a variable in shell? [duplicate]
I have a script like that
8 Answers
8
...
Origin null is not allowed by Access-Control-Allow-Origin
...partially solved simply by using the following jQuery instruction:
<script>
$.support.cors = true;
</script>
I tried it on IE10.0.9200, and it worked immediately (using jquery-1.9.0.js).
On chrome 28.0.1500.95 - this instruction doesn't work (this happens all over as david compl...
Node.js + Nginx - What now?
...s-available/yourdomain.com
In it you should have something like:
# the IP(s) on which your node server is running. I chose port 3000.
upstream app_yourdomain {
server 127.0.0.1:3000;
keepalive 8;
}
# the nginx server instance
server {
listen 80;
listen [::]:80;
server_name y...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...款电脑上的软件，配合UART线，可以与硬件进行双向数据传输的工具，UART线如下：电脑端的串口工具软件非常之多，查看原文链接下载。请注意：使用串口工具软件之前，一般需要安装硬件厂商提供的驱动程序。
电脑端打开串...
从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
...义在协处理器上数据；使用什么接口在CPU和协处理器之间传输数据；如何获得异构平台的资源描述。有了这些说明和定义，我们便可以书写程序了。
我们继续讨论OpenCL。一般我们的协处理器上的多线程函数被称为核函数，核函...