ESP32 IDF 获取天气信息 _生活百科

一、注册天气获取账号我使用的知心天气，没有获取天气账号的小伙伴可以去注册一下，知心天气官网：https://www.seniverse.com/取得天气获取的API后，可以直接在浏览器中访问测试一下，如下图所示：

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这里我就不赘述了，稍微花点信息就可以明白天气是怎么获取的了。
二、天气信息获取到的天气格式是JSON的数据，直接在浏览器中不好观察，所以我将它整理了一下，如下所示：

{	"results":[{"location":{"id":"WKEZD7MXE04F","name":"贵阳","country":"CN","path":"贵阳,贵阳,贵州,中国","timezone":"Asia/Shanghai","timezone_offset":"+08:00"},"daily":[{"date":"2022-10-24","text_day":"多云","code_day":"4","text_night":"多云","code_night":"4","high":"24","low":"12","rainfall":"0.00","precip":"0.00","wind_direction":"东南","wind_direction_degree":"135","wind_speed":"8.4","wind_scale":"2","humidity":"57"},{"date":"2022-10-25","text_day":"多云","code_day":"4","text_night":"多云","code_night":"4","high":"24","low":"14","rainfall":"0.00","precip":"0.00","wind_direction":"南","wind_direction_degree":"180","wind_speed":"8.4","wind_scale":"2","humidity":"62"},{"date":"2022-10-26","text_day":"阴","code_day":"9","text_night":"阵雨","code_night":"10","high":"24","low":"13","rainfall":"4.63","precip":"0.94","wind_direction":"南","wind_direction_degree":"180","wind_speed":"3.0","wind_scale":"1","humidity":"87"}],"last_update":"2022-10-24T08:00:00+08:00"}	]}

其中有些格式可能看不知道什么意思，不要怕，看官方的注释，如下所示：

{"results": [{"location": {"id": "C23NB62W20TF","name": "西雅图","country": "US","path": "西雅图,华盛顿州,美国","timezone": "America/Los_Angeles","timezone_offset": "-07:00"},"now": {"text": "多云", //天气现象文字"code": "4", //天气现象代码"temperature": "14", //温度，单位为c摄氏度或f华氏度"feels_like": "14", //体感温度，单位为c摄氏度或f华氏度"pressure": "1018", //气压，单位为mb百帕或in英寸"humidity": "76", //相对湿度，0~100，单位为百分比"visibility": "16.09", //能见度，单位为km公里或mi英里"wind_direction": "西北", //风向文字"wind_direction_degree": "340", //风向角度，范围0~360，0为正北，90为正东，180为正南，270为正西"wind_speed": "8.05", //风速，单位为km/h公里每小时或mph英里每小时"wind_scale": "2", //风力等级，请参考：http://baike.baidu.com/view/465076.htm"clouds": "90", //云量，单位%，范围0~100，天空被云覆盖的百分比 #目前不支持中国城市#"dew_point": "-12" //露点温度，请参考：http://baike.baidu.com/view/118348.htm #目前不支持中国城市#},"last_update": "2015-09-25T22:45:00-07:00" //数据更新时间（该城市的本地时间）}]}

三、ESP32获取天气信息这里我使用的是ESP-IDF环境，并且是通过 socket 的方式进行获取