Getting Date & Time From NTP Server With ESP32

  Getting Date & Time From NTP Server With ESP32

源自於 https://lastminuteengineers.com/esp32-ntp-server-date-time-tutorial/

#include <WiFi.h>

#include "time.h"

#include <WebServer.h>

#include <AutoConnect.h>

WebServer Server;

AutoConnect  Portal(Server);

//const char* ssid       = "YOUR_SSID";

//const char* password   = "YOUR_PASS";

const char* ntpServer = "asia.pool.ntp.org";

const long  gmtOffset_sec = 3600;

const int   daylightOffset_sec = 3600;

//==================================================

void rootPage() {

  char content[] = "Hello, world";

  Server.send(200, "text/plain", content);

}

//==================================================

void printLocalTime()

{

  struct tm timeinfo;

  if(!getLocalTime(&timeinfo)){

    Serial.println("Failed to obtain time");

    return;

  }

  Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");

}

//==================================================

void setup()

{

  Serial.begin(115200);

  Server.on("/", rootPage);

  if (Portal.begin()) {

    Serial.println("HTTP server:" + WiFi.localIP().toString());

  }

  //init and get the time

  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);

  printLocalTime();

  //disconnect WiFi as it's no longer needed

  WiFi.disconnect(true);

  WiFi.mode(WIFI_OFF);

}

//==================================================

void loop()

{

  delay(5000);

  printLocalTime();

  if (WiFi.status() == WL_CONNECTED) { 

      

  }

  Portal.handleClient();

}

//==================================================