代码|十分钟开发物联网：手机App远程控制Led灯(4G版)_Led|开发|接入|教程|应用|经验教

本文设计的一款通过4G Cat.1方式接入机智云的设备，用户可以通过App远程控制设备上的Led灯的亮灭。通过本例可以很容易衍生出其他应用，比如远程控制继电器、电磁阀、电机、声光报警等应用场景。
视频教程及实物展示视频演示教程：
<br /> 文章图片 <br /> <br /> <b>【代码|十分钟开发物联网：手机App远程控制Led灯(4G版)】</b><br /><img alt="代码|十分钟开发物联网：手机App远程控制Led灯(4G版)" onload="javascript:ImgReSize(this)" src="https://p7.itc.cn/images01/20211206/2271e65e68c4416b85c20a797d0d1063.jpeg" /> <br /> 文章图片 <br /> <br /> 硬件端接线图 <br /><img alt="代码|十分钟开发物联网：手机App远程控制Led灯(4G版)" onload="javascript:ImgReSize(this)" src="https://p0.itc.cn/images01/20211206/4018fed6ca5b4cf3a535ca86d8f769fb.jpeg" /> <br /> 文章图片 <br /> <br /> 材料清单 <br /><img alt="代码|十分钟开发物联网：手机App远程控制Led灯(4G版)" onload="javascript:ImgReSize(this)" src="https://p1.itc.cn/images01/20211206/288ef6d2ba244296bd2003e37daa7a0a.jpeg" /> <br /> 文章图片 <br /> <br /> 硬件端完整源码 --配置D9为普通输出,控制ShineBlink开发板上的LED2灯,作为实验演示灯 <br /> LIB_GpioOutputConfig("D9","STANDARD") <br /> --机智云平台为每个产品类别分配的唯一PK和PS ，一定要改成您自己的PK和PS <br /> PK = "7c597675f7a14254b02031b4aadd2637" <br /> PS = "8fb19b46dfba4c1aa78ec27af9605c82" <br /> --初始化4G模块 <br /> LIB_Giz4GConfig(PK,PS,6000,120,"UART0","D5","HIGH","D6","HIGH") <br /> --开始大循环 <br /> while(GC(1) == true) <br /> do <br /> --查询机智云是否下发了写"Sw1"开关量数据点的动作 <br /> flag,recv_data = https://www.sohu.com/a/LIB_RecvFromGizCloud("Sw1") <br /> if flag == 1 then <br /> if recv_data =https://www.sohu.com/a/= 1 then -- 云下发了1 <br /> LIB_GpioWrite("D9",0)--LED2灯亮 <br /> else -- 云下发了0 <br /> LIB_GpioWrite("D9",1)--LED2灯灭 <br /> end <br /> end <br /> end <br /> 上面代码中出现的"LIB_"开头的库函数的详细介绍可以在shineblink.com网站上的API文档中查询。<br /> 这里重点介绍一下上面代码中的函数： <br /> LIB_Giz4GConfig(PK,PS,6000,120,"UART0","D5","HIGH","D6","HIGH")： <br /> ◆ 设置产品的PK和PS ，每隔6000ms上传一次数值型数据点(比如整型、浮点型) ，本例中未使用到该类型的数据点，该时间值越大越省流量； <br /> ◆ 如果120秒内没收到4G模块的UART接口数据，则ShineBlink开发板会通过D5引脚复位4G模块，以提高系统的健壮性，如果不需要此特性，可以将120改成0； <br /> ◆ D5接4G通讯模组的RST复位引脚，上面已介绍其作用； <br /> ◆ D6接4G通讯模组的PWR引脚。<br /> 机智云接入和App开发（三个选择） ?选择一：机智云+通用版APP访问设备（难度最低） </p> <div class="dede_pages"><ul><li><a href='#'>上一页</a></li><li class="thisclass"><a href='#'>1</a></li><li><a href='120634G522021_2.html'>2</a></li><li><a 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