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App Inventor 2 MQTT拓展入门(保姆级教程) · App Inventor 2 中文网
...里以 bemfa.com 为例,账号注册请自行完成,如果看到的是TCP云,请切换到MQTT云:
输入名称(例如:APPMQTT),新建一个订阅主题:
MQTT客户端测试工具,下载地址:https://mqttx.app/zh/downloads
启动MQTTX客户...
Mind+ 掌控板、ESP32开发板等硬件如何接入AppInventor? - 创客硬件开发 - ...
...用 蓝牙客户端 组件。Mind+ 参考代码如下:
2、WIFI(TCP服务器),使用ClientSocketAI2Ext 拓展。
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!
...bus内容是什么?大致分为以下几种:Modbus-RTUModbus-ASCIIModbus-TCP
以上三种协议,一个设备只会有一种协议,如果你的设备使用的是Modbus-RTU,只需查看以下对应部分,一般来说大部分的设备都是Modbus-RTU协议的。4.通讯过程4.通讯过程M...
app 息屏后连接会断开,需要深入研究一下 - 用户反馈 - 清泛IT社区,为创新赋能!
如题,tcp,蓝牙,mqtt 等连接都会断开。
有办法避免吗?
重连策略有效解决吗?
全食超市(Whole Foods Market)——精品超市的运营之道 - 资讯 - 清泛网 -...
...沃尔玛、好市多等主打性价比和Pavilions、Ralphs等更高端的区域有机食品零售商的双重挤压,全食超市自2016年以来业绩有所下滑。但复盘其过往30多年突围发展史,依然对处于发展初期的国内高端精品超市有着极大的参考意义。
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
...
Akka-Camel would be a better example than ZeroMQ - ZeroMQ is a direct tcp to tcp communication (hence zero - there is no message queue).
With AkkaCamel you can abstract away the queue and produce/consume messages direct from an actor without any code to deal with the message queue message push...
How to stop and restart memcached server?
... is currently runing:
sudo ps -e | grep memcached
And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it:
netstat -ap | grep TheChosenPort#
netstat -ap | grep 11211
For some Linuxes you need to change your commands like:
sudo /etc/init.d/memcached start
sudo /e...
How do I do a HTTP GET in Java? [duplicate]
...
Technically you could do it with a straight TCP socket. I wouldn't recommend it however. I would highly recommend you use Apache HttpClient instead. In its simplest form:
GetMethod get = new GetMethod("http://httpcomponents.apache.org");
// execute method and handle a...
What browsers support HTML5 WebSocket API?
... Node.js)
Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, SockJS as fallback for WebSockets
Pusher.com is a Websocket cloud service accessible through a REST API.
DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Containe...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...如下所示:
子程序名 proc [距离] [语言类型] [可视区域] [USES寄存器列表] [,参数:类型]…[VARARG]
local 局部变量列表
指令
子程序名 endp
proc和endp伪指令定义了子程序开...
