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https://www.fun123.cn/reference/iot/MQTTGuide.html 

App Inventor 2 MQTT拓展入门(保姆级教程) · App Inventor 2 中文网

...自己搭建。 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:https://mqttx.app/zh App设计及代码 ...
https://www.fun123.cn/reference/iot/MQTTGuide.html 

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...
https://bbs.tsingfun.com/thread-2352-1-1.html 

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。
https://bbs.tsingfun.com/thread-2438-1-1.html 

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...
https://bbs.tsingfun.com/thread-2523-1-1.html 

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?
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What is the equivalent of Java's final in C#?

...l With strings being the only exception. – Raimund Krämer Dec 19 '18 at 15:26  |  show 2 more comments ...
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What does the “at” (@) symbol do in Python?

...the @= (in-place) operator, which is __imatmul__. – Pål GD Feb 25 '18 at 12:40 Are there any other overridable operat...
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How exactly does the python any() function work?

... edited Jun 8 '16 at 8:33 Håken Lid 15.9k77 gold badges3535 silver badges5555 bronze badges answered Jun 8 '16 at 7:29 ...
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Git Remote: Error: fatal: protocol error: bad line length character: Unab

...t> /bin/true shouldn't output anything. – Stefan Näwe Nov 18 '11 at 7:34 9 ...
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Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]

... sticky; /* and other browsers */ – Jørgen Rudolph Låker Mar 17 at 12:21 1 ...