大约有 1,900 项符合查询结果(耗时:0.0091秒) [XML]

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

App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

...不得转载或使用 隐私策略和使用条款  官方QQ群483928335 #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
https://bbs.tsingfun.com/thread-2213-1-1.html 

记录一下使用JDY-34蓝牙模块,使用本平台搭建蓝牙APP的过程 - 创客硬件开发...

...发布,不太会;整体花了两天算是完成了APP的设计;希望官方可以将我的例程做成一个开源模版;到时候需要的人可以直接一次性到位,不需要来回踩坑了。诸事祝好,万事顺心,给每一个看到的人。 晚安,好梦。有缘再相会...
https://bbs.tsingfun.com/thread-2982-1-1.html 

扒了一下源码,ESP8285接入App Inventor有4种玩法,第3种最香 - AI 助手 - ...

...e.appinventor.components.runtime 和 cn.fun123 下的所有源码: MIT官方内置组件: - Web组件 — HTTP GET/POST,支持JSON解析 - BluetoothClient — 蓝牙SPP串口 - Serial — USB串口(基于Physicaloid库,代码里直接写了支持Arduino/ESP8266) fun123自研扩...
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iPhone: How to get current milliseconds?

...t; struct timeval time; gettimeofday(&time, NULL); long millis = (time.tv_sec * 1000) + (time.tv_usec / 1000); share | improve this answer | follow | ...
https://www.fun123.cn/referenc... 

数据存储组件 · App Inventor 2 中文网

...法在 Android 11 或更高版本上运行。 中文网注:我们与MIT官方最新版本一样,出于安全性考虑,不支持直接从根目录访问文件,如/sdcard/,推荐使用App模式。 私有 :文件将从应用程序的私有目录读取和写入,使用这个作用...
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Set the layout weight of a TextView programmatically

...and add them to a TableLayout . The TableRow objects has 2 items, a TextView and a CheckBox . The TextView items need to have their layout weight set to 1 to push the CheckBox items to the far right. ...
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Tracking the script execution time in PHP

...Script end function rutime($ru, $rus, $index) { return ($ru["ru_$index.tv_sec"]*1000 + intval($ru["ru_$index.tv_usec"]/1000)) - ($rus["ru_$index.tv_sec"]*1000 + intval($rus["ru_$index.tv_usec"]/1000)); } $ru = getrusage(); echo "This process used " . rutime($ru, $rustart, "utime") . "...
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Detect current device with UI_USER_INTERFACE_IDIOM() in Swift

...yle UI case pad // iPad style UI @available(iOS 9.0, *) case tv // Apple TV style UI @available(iOS 9.0, *) case carPlay // CarPlay style UI } so for the strict definition of the device can be used this code struct ScreenSize { static let SCREEN_WIDTH = UIScree...
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Is there an easy way to strike through text in an app widget?

...n app widget in Android. In a normal activity, it is pretty easy, using textview flags: 17 Answers ...
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How to calculate a time difference in C++

...() { clock_gettime(CLOCK_REALTIME, &end_); return end_.tv_sec - beg_.tv_sec + (end_.tv_nsec - beg_.tv_nsec) / 1000000000.; } void reset() { clock_gettime(CLOCK_REALTIME, &beg_); } private: timespec beg_, end_; }; Example of usage: int main() { ...