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#include <WiFi.h>
#include "time.h"

const char* ssid       = "YOUR_SSID";
const char* password   = "YOUR_PASS";

// **** These lines added :
//Static IP address configuration
IPAddress staticIP(192, 168, 0, 51); //ESP32 static ip
IPAddress gateway(192, 168, 0, 254); //IP Address of WiFi Router
IPAddress subnet(255, 255, 255, 0);  //Subnet mask
IPAddress dns(192, 168, 0, 254);     //DNS
// *** up to here

const char* ntpServer = "pool.ntp.org";
const long  gmtOffset_sec = 3600;
const int   daylightOffset_sec = 3600;

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);

  //connect to WiFi
  Serial.printf("Connecting to %s ", ssid);

// **** These lines added :
  WiFi.mode(WIFI_OFF);
  WiFi.config(staticIP, dns, gateway, subnet);
  WiFi.mode(WIFI_STA); //WiFi mode station (connect to wifi router only)
  delay(100);
// *** up to here

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println(" CONNECTED");
  Serial.print("WiFi connected - IP address: ");
  Serial.println(WiFi.localIP());

  //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(1000);
  printLocalTime();
}

Code: Select all

bool WiFiSTAClass::config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1, IPAddress dns2)

Code: Select all

IPAddress local_IP(192, 168, 1, 24);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
IPAddress dns(192, 168, 1, 1); //needed to go on internet

WiFi.config(staticIP,  gateway, subnet, dns);