ESP32-Ardunio 心知天气 hhtps 获取数据 +NTP对时

这里是用ESP32做了从机，一定周期打印时间，天气数据。

编译环境是 vscode-PlatformIO

#include "Arduino.h"
#include <WiFi.h>
#include <ArduinoJson.h>
#include <HTTPClient.h>
// WiFi相关
const char *ssid = "233";
const char *password = "12345678";//心知天气 相关
String API = "SJ3cQqGjCfr2Ej1oS";
String CITY = "luoyang";// 定时器相关
u32_t cnt = 0;void Get_Now_Time() ; //NTP 获取当前时间/日期
void Get_Today_Weather(String api, String city) ;//https 获取当日天气
void Get_Rencent_Weather(String api, String city) ;//https 获取 今明后 三日天气void IRAM_ATTR Tim0_Handle(void) //定时器回调函数
{++cnt;if(cnt == 300) //五分钟一个循环{cnt =0;}
}void setup()
{Serial.begin(115200);Serial.println("串口初始化成功");hw_timer_t *tim0 = timerBegin(0, 8000, true); //建立定时器  //80MHZ 进行 8000预分频后 每秒 计数10000次timerAlarmWrite(tim0, 10000-1, true);//设置 自动重装载值 10000-1 timerAttachInterrupt(tim0, Tim0_Handle, true);//绑定定时器timerAlarmEnable(tim0);}void loop()
{switch (cnt) {case 3:if (WiFi.status() != WL_CONNECTED){WiFi.begin(ssid, password);vTaskDelay(100);}Serial.println("WiFi开启");++cnt;break;case 8:Serial.println("现在的时间是");Get_Now_Time();Serial.println("今天的天气是");Get_Today_Weather(API, CITY);Serial.println("近三天的天气是");Get_Rencent_Weather(API, CITY);++cnt;break;case 18:Serial.println("WiFi关闭");WiFi.disconnect(true); //关闭wifi ，降低功耗  WiFi.mode(WIFI_OFF);++cnt;default:break;}
}void Get_Now_Time()
{while (WiFi.status() != WL_CONNECTED){WiFi.begin(ssid, password);vTaskDelay(100);}configTime(3600 * 7, 3600, "us.pool.ntp.org");static struct tm timeinfo;if (!getLocalTime(&timeinfo)){if (!getLocalTime(&timeinfo))return;}Serial.println(&timeinfo, "#T-%Y-%m-%d-%w-%H:%M:%S");//我需要的 时间 年月日 + 星期几 + 时分秒vTaskDelay(2);
}
void Get_Today_Weather(String api, String city)
{while (WiFi.status() != WL_CONNECTED){WiFi.begin(ssid, password);vTaskDelay(100);}String url_xinzhi = "";url_xinzhi = "https://api.seniverse.com/v3/weather/now.json?key=";url_xinzhi += api;url_xinzhi += "&location=";url_xinzhi += city;url_xinzhi += "&language=en&unit=c";DynamicJsonDocument doc(2048); //分配内存,动态HTTPClient http;char data[100] = {"#w:"};http.begin(url_xinzhi);int httpGet = http.GET();if (httpGet > 0){if (httpGet == HTTP_CODE_OK){String json = http.getString();//Serial.println(json);  //打印接受到的消息deserializeJson(doc, json);/*  从doc 中提取出 需要的数据 *//*  code ：天气码   temperature：气温  */strcat(data, doc["results"][0]["now"]["code"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["now"]["temperature"].as<const char *>());strcat(data, "$");Serial.println(data);//我需要的天气数据}}http.end();
}
void Get_Rencent_Weather(String api, String city)
{while (WiFi.status() != WL_CONNECTED){WiFi.begin(ssid, password);vTaskDelay(100);}String url_xinzhi = "";url_xinzhi = "https://api.seniverse.com/v3/weather/daily.json?key=";url_xinzhi += api;url_xinzhi += "&location=";url_xinzhi += city;url_xinzhi += "&language=en&unit=c";url_xinzhi += "&start=0&days=3";DynamicJsonDocument doc(2048); //分配内存,动态HTTPClient http;char data[100] = {"#W:"};http.begin(url_xinzhi);int httpGet = http.GET();if (httpGet > 0){if (httpGet == HTTP_CODE_OK){String json = http.getString();//Serial.println(json); //打印接收到的消息deserializeJson(doc, json);// JsonObject root = doc.as<JsonObject>();// JsonArray results = root["results"];// const char *a = results[0]["last_update"];// const char *b = results[0]["daily"][0]["text_day"];/*  从doc 中提取出 需要的数据 *//* code_day白天天气码，code_night晚上天气码 */strcat(data, doc["results"][0]["daily"][0]["code_day"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["daily"][1]["code_day"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["daily"][2]["code_day"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["daily"][0]["code_night"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["daily"][1]["code_night"].as<const char *>());strcat(data, ":");strcat(data, doc["results"][0]["daily"][2]["code_night"].as<const char *>());strcat(data, "$");Serial.println(data);}}http.end();
}/*BUG 如果程序编译没有报错， 并且烧录成功后，不止一次，多次弹出/打印出 下面文本这个其实就是 ESP32 Reset/复位时 会打印的信息
多次复位， 多为代码逻辑问题，引起了ESP32自动复位~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ets Jun  8 2016 00:22:57rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13132
load:0x40080400,len:3036
entry 0x400805e4
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~如果是自带usb串口 的开发板，（烧录超级简单的示例程序  可以正常运行，说明板子一般是没问题的）那么可以肯定，（坚信不疑）一定（多数情况下）是：  代码的逻辑问题包括但不限于  变量生命周期错判，赋值时内存溢出，野指针，形参实参                数据类型错用，.........，看个人习惯了，这种错误一不留神就找出来了----------------------------------------------------------
检错步骤（建议）：1.代码最好 功能化，模块化2.在 setup 函数第一句/最开始就 delay(5000);//延时5s3.在每一段代码块中，多设置例如Serial.println("标签 1.1 ##"); 的语句， 设置4.烧录完成后即刻打开串口，观察串口输出数据观察 自己设置的标签， 清楚知道程序运行到哪里了5.这时，突然打印出-上述文本-， 观察相隔最近的标签， 就是这附近出毛病了，6.修改完成成后，再次烧录运行，观察是否能正常运行到下一个标签处-------------------------------------------------------------------------分享下自己找了一天的bug，正常的String json = http.getString();deserializeJson(doc, json);错误的deserializeJson(doc, http.getString());可能原因：http.getString() 返回类型为 string算是个数组， c++/c 函数 返回 |函数内定义的| 数组类型数据，存不住，生命周期太短了，https://blog.csdn.net/qq_41989885/article/details/104932634
*/

心知天气返回数据 获取今日天气 url可以直接在 浏览器上面的访问框内输入这个 url，看看浏览器中显示的内容就是 返回数据https: //api.seniverse.com/v3/weather/now.json?key=SJ3cQqGjCfr2Ej1oS&location=luoyang&language=en&unit=c&start=0&days=5返回数据
HTTPGET is 200 //请求成功才返回下面数据{"results": [{"location": {"id": "WQPUYY7S4GV2","name": "Luoyang","country": "CN","path": "Luoyang,Luoyang,Henan,China","timezone": "Asia/Shanghai","timezone_offset": "+08:00"},"now": {"text": "Cloudy","code": "4","temperature": "29"},"last_update": "2022-08-02T12:34:30+08:00"}]
}获取今日起三天天气 url
//非vip用户最多获取近三日天气数据，记得自己注册一个心知天气账号，修改下 API ，也就是?可以直接在 浏览器上面的访问框内输入这个 url，看看浏览器中显示的内容就是 返回数据key=SJ3cQqGjCfr2Ej1oS ，这个要改称自己账号的API 私钥
https: //api.seniverse.com/v3/weather/now.json?key=SJ3cQqGjCfr2Ej1oS&location=luoyang&language=en&unit=c&start=0&days=3返回数据
HTTPGET is 200 //请求成功才返回下面数据{"results": [{"location": {"id": "WQPUYY7S4GV2","name": "Luoyang","country": "CN","path": "Luoyang,Luoyang,Henan,China","timezone": "Asia/Shanghai","timezone_offset": "+08:00"},"daily": [{"date": "2022-08-02","text_day": "Shower","code_day": "10","text_night": "Cloudy","code_night": "4","high": "34","low": "24","rainfall": "5.40","precip": "0.96","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "8.4","wind_scale": "2","humidity": "81"},{"date": "2022-08-03","text_day": "Shower","code_day": "10","text_night": "Cloudy","code_night": "4","high": "35","low": "25","rainfall": "5.40","precip": "0.96","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "8.4","wind_scale": "2","humidity": "84"},{"date": "2022-08-04","text_day": "Sunny","code_day": "0","text_night": "Clear","code_night": "1","high": "36","low": "26","rainfall": "0.00","precip": "0.00","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "3.0","wind_scale": "1","humidity": "83"}],"last_update": "2022-08-02T08:00:00+08:00"}]
}https: //api.seniverse.com/v3/weather/daily.json?key=SJ3cQqGjCfr2Ej1oS&location=luoyang&language=en&unit=c&start=0&days=5{"results": [{"location": {"id": "WQPUYY7S4GV2","name": "Luoyang","country": "CN","path": "Luoyang,Luoyang,Henan,China","timezone": "Asia/Shanghai","timezone_offset": "+08:00"},"now": {"text": "Cloudy","code": "4","temperature": "31"},"last_update": "2022-08-02T13:24:14+08:00"}]
}{"results": [{"location": {"id": "WQPUYY7S4GV2","name": "Luoyang","country": "CN","path": "Luoyang,Luoyang,Henan,China","timezone": "Asia/Shanghai","timezone_offset": "+08:00"},"daily": [{"date": "2022-08-02","text_day": "Shower","code_day": "10","text_night": "Cloudy","code_night": "4","high": "34","low": "24","rainfall": "5.40","precip": "0.96","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "8.4","wind_scale": "2","humidity": "81"},{"date": "2022-08-03","text_day": "Shower","code_day": "10","text_night": "Cloudy","code_night": "4","high": "35","low": "25","rainfall": "5.40","precip": "0.96","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "8.4","wind_scale": "2","humidity": "84"},{"date": "2022-08-04","text_day": "Sunny","code_day": "0","text_night": "Clear","code_night": "1","high": "36","low": "26","rainfall": "0.00","precip": "0.00","wind_direction": "SE","wind_direction_degree": "135","wind_speed": "3.0","wind_scale": "1","humidity": "83"}],"last_update": "2022-08-02T08:00:00+08:00"}]
}

还有一篇和这个有关

vscode Ardunio PlatformIO导入自己写的.c.h文件的正确方法_—=-_-=—的博客-CSDN博客

心知天气常用接口：
天气实况 · 心知天气获取指定城市的天气实况。付费用户可获取全部数据，免费用...https://seniverse.yuque.com/books/share/e52aa43f-8fe9-4ffa-860d-96c0f3cf1c49/nyiu3t
未来15天逐日天气预报和昨日天气 · 心知天气获取指定城市未来最多 15 天每天的白天和夜间预报，以...https://seniverse.yuque.com/books/share/e52aa43f-8fe9-4ffa-860d-96c0f3cf1c49/sl6gvt

整点实况 · 心知天气获取全国所有市区县（3000+）的天气实况数据更新频率...https://seniverse.yuque.com/books/share/e52aa43f-8fe9-4ffa-860d-96c0f3cf1c49/weather_obs

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ESP32-Ardunio 心知天气 hhtps 获取数据 +NTP对时

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