ESP32 Forum

Posted: **Tue Jan 05, 2021 12:08 pm**

Hi,

I am using esp32 for my iot project, in that i have to send the data for every second. Most of the time board is able to send the data to server but some times data is missing for 4 to 5 seconds. ( i am using post method) help me with this regards.

Code: [Select all] [Expand/Collapse]

#include <WiFi.h>
#include <HTTPClient.h>
 
const char* ssid = "D-Link_1";
const char* password =  "12345678";
 
void setup() {
 
  Serial.begin(115200);
  delay(4000);   //Delay needed before calling the WiFi.begin
 
  WiFi.begin(ssid, password);
 
  while (WiFi.status() != WL_CONNECTED) { //Check for the connection
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }
 
  Serial.println("Connected to the WiFi network");
 
}
 
void loop() {
 
  if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
 
    HTTPClient http;
 
    http.begin("http://192.168.0.103:9002/data");  //Specify destination for HTTP request
    http.addHeader("Content-Type", "application/json");             //Specify content-type header
 
    int httpResponseCode = http.POST("[{\"x\": 1, \"x1\": 5000, \"x2\": 3, \"x3\": 5, \"x4\": 6, \"x5\": 7}]");   //Send the actual POST request
 
    String response = http.getString();                       //Get the response to the request
    Serial.println(httpResponseCode);   //Print return code
    Serial.println(response);           //Print request answer
    http.end();  //Free resources
 
  } else {
 
    Serial.println("Error in WiFi connection");
 
  }
 
//  delay(10);  //Send a request every 10 seconds
 
}

ESP32 Forum

Unable to send data for every second using POST method. ( ESP32 - Arduino)

Unable to send data for every second using POST method. ( ESP32 - Arduino)