I need the older version thingspeak so as to upload data to cloud..

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stanly felix 2022-10-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1815515-i-need-the-older-version-thingspeak-so-as-to-upload-data-to-cloud

编辑： Christopher Stapels 2022-10-3

//#include <dht.h>
#include <BearSSLHelpers.h>
#include <CertStoreBearSSL.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiAP.h>
#include <ESP8266WiFiGeneric.h>
#include <ESP8266WiFiGratuitous.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266WiFiScan.h>
#include <ESP8266WiFiSTA.h>
#include <ESP8266WiFiType.h>
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
#include <WiFiClientSecureAxTLS.h>
#include <WiFiClientSecureBearSSL.h>
#include <WiFiServer.h>
#include <WiFiServerSecure.h>
#include <WiFiServerSecureAxTLS.h>
#include <WiFiServerSecureBearSSL.h>
#include <WiFiUdp.h>
#include <dummy.h>
#include <DHT.h>
#include <DHT22.h>
String apiKey = "xxxxxxxxxxxxxxxx";     //  Enter your Write API key from ThingSpeak
const char *ssid =  "CTA-WiFi";     // replace with your wifi ssid and wpa2 key
const char *pass =  "cta56789";
const char* server = "api.thingspeak.com";
#define DHTPIN 0          //pin where the dht11 is connected
DHT dht(DHTPIN, DHT22);
WiFiClient client;
void setup() 
{
    Serial.begin(115200);
    delay(10);
    dht.begin();
    
    Serial.println("Connecting to ");
    Serial.println(ssid);
    
    
    WiFi.begin(ssid, pass);
    
    while (WiFi.status() != WL_CONNECTED) 
    {
        delay(500);
        Serial.print(".");
        }
    Serial.println("");
    Serial.println("WiFi connected");
    
    }
    
    void loop() 
    {
        
    float h = dht.readHumidity();
    float t = dht.readTemperature();
    
    if (isnan(h) || isnan(t)) 
        {
            Serial.println("Failed to read from DHT sensor!");
            return;
        }
        
        if (client.connect(server,80))   //   "184.106.153.149" or api.thingspeak.com
            {  
                
            String postStr = apiKey;
            postStr +="&field1=";
            postStr += String(t);
            postStr +="&field2=";
            postStr += String(h);
            postStr += "\r\n\r\n";
            
            client.print("POST /update HTTP/1.1\n");
            client.print("Host: api.thingspeak.com\n");
            client.print("Connection: close\n");
            client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
            client.print("Content-Type: application/x-www-form-urlencoded\n");
            client.print("Content-Length: ");
            client.print(postStr.length());
            client.print("\n\n");
            client.print(postStr);
            
            Serial.print("Temperature: ");
            Serial.print(t);
            Serial.print(" degrees Celcius, Humidity: ");
            Serial.print(h);
            Serial.println("%. Send to Thingspeak.");
            }
            client.stop();
            
            Serial.println("Waiting...");
            
            // thingspeak needs minimum 15 sec delay between updates
            delay(1000);
            }