可视化网关编程系列教程-----（4）获取天气信息可视化网关编程系列教程----

获取天气信息
小伙伴们，大家好。今天我们学习通过wether节点来获取天气信息。帮得到的数据传输到家里的OLED屏或者触摸屏，出门之前就能知道今天的天气，它能不香嘛

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image.png 1. 安装wether节点

通过npm安装
npm install -g node-red-contrib-weather
通过节点管理器进行安装，搜索weather

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2. 使用weather节点
双击weather节点输入你所在地区的经纬度即可（在百度上搜索经纬度查询，即可获取到你所在地区的经纬度）
随便传入一条消息即可获取天气信息。为了大家使用方便，我把常用的几条数据单独拎出来作为一个输出引脚（如下表所示）。

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output	value
1	温度
2	湿度
3	天气代码
4	AQI
5	日出时间
6	日落时间
7	天气对象

示例代码

[{"id":"9d7e6a39.39f928","type":"weather","z":"63da8941.7cd5c8","name":"上海","longitude":"121.48","latitude":"31.22","x":670,"y":580,"wires":[["da0fd321.f9e51"],["da0fd321.f9e51"],["da0fd321.f9e51"],["da0fd321.f9e51"],["da0fd321.f9e51"],["da0fd321.f9e51"],["da0fd321.f9e51"]]},{"id":"da0fd321.f9e51","type":"debug","z":"63da8941.7cd5c8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":900,"y":600,"wires":[]},{"id":"11d6dfc5.cde73","type":"inject","z":"63da8941.7cd5c8","name":"","topic":"","payload":"{\"latitude\":31,\"longitude\":121}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":410,"y":580,"wires":[["9d7e6a39.39f928"]]}]