ESP32 WiFi Library – WiFi.setHostname

/*
 * Author: Avant Maker
 * Date (MM-DD-YY): 02-06-25
 * Version: 1.0
 * Description: This example code demostrates how to use setHostname 
 * method to set a valid hostname before connecting to a Wi-Fi network. 
 * The hostname persists after connection and can be verified using 
 * WiFi.getHostname().
 *
 * License: MIT 
 * 
 * Code Source: This example code is sourced from the Comprehensive Guide
 * to the ESP32 Arduino Core Library, accessible on AvantMaker.com. 
 * For additional code examples and in-depth documentation related to 
 * the ESP32 Arduino Core Library, please visit:
 *
 * https://avantmaker.com/references/esp32-arduino-core-index/
 *
 * AvantMaker.com, your premier destination for all things DIY, AI, IoT, 
 * Smart Home, and STEM projects. We are dedicated to empowering makers,
 * learners, and enthusiasts with the resources they need to bring their 
 * innovative ideas to life.
 */


#include <WiFi.h>

void setup() {
  Serial.begin(115200);
  
  // Set custom hostname
  if (WiFi.setHostname("my_esp32_device")) {
    Serial.println("Hostname set successfully");
  } else {
    Serial.println("Failed to set hostname");
  }

  // Connect to Wi-Fi
  WiFi.begin("your_SSID", "your_PASSWORD");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  // Verify hostname
  Serial.print("Hostname: ");
  Serial.println(WiFi.getHostname());
}

void loop() {
}