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MQTT相关知识研究笔记 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...过于依赖他们的硬件),巴法云(技术纯粹一些,还支持TCP长连接),阿里云(企业版收费,可免费试用,步骤复杂),华为云(暂未研究)。 国外的平台: HiveMQ公共测试:https://www.mqtt-dashboard.com/ EMQX:broker.emqx.io 4...
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AppInventor2如何通过socket给网络发16进制的数据? - App应用开发 - 清泛I...

...能发ASCLL码?没办法收发HEX,蓝牙组件的有写字节功能,TCP网络组件没有。 答: 发送文本消息时,hexaStringMode设为 false;发送16制消息时,hexaStringMode设为 true,例如:0x012 —> “303132” 字符串发送,接收的数据也是16进...
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。
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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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Sending email with PHP from an SMTP server

... Is PHP Mailer allowed to be used in paid scripts? – Luka Mar 24 '17 at 14:53 2 ...
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Detecting iOS / Android Operating system

... // iOS detection from: http://stackoverflow.com/a/9039885/177710 if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) { return "iOS"; } return "unknown"; } share | ...
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send/post xml file using curl command line

... from stdin. The contents of the file must already be URL-encoded. Multiple files can also be specified. Posting data from a file named 'foobar' would thus be done with --data @foobar. share | ...
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Throttling method calls to M requests in N seconds

...e the DelayQueue from java.util.concurrent. It prevents the problem of multiple threads acting on the same entry. – erickson Sep 10 '09 at 20:22 5 ...