ESP32 WiFi Library – WiFi.softAPIP

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Description

The softAPIP() method is used to retrieve the IP address of the ESP32’s soft Access Point (AP). This method is typically called after configuring the soft AP using softAP() to obtain the assigned IPv4 address of the access point interface.

Syntax and Usage

The method can be used in two ways:

– Without arguments:

IPAddress local_ip = WiFi.softAPIP();

This method retrieves the IPv4 address of the soft AP interface.

Argument(s)

The function does not take any argument.

Return Value

The function will return the AP IP address in IPAddress format.

Example Codes

This code demonstrates how to use the ESP32 AP Class’s softAPIP() method to retrieve the IP address of the ESP32’s Soft Access Point (AP). The ESP32 creates a WiFi network with the SSID “AvantMaker-ESP32-AP” and password “12345678”. The softAPIP() method fetches the IPv4 address assigned to the AP, which is then printed to the Serial Monitor.

To use this code, upload it to your ESP32 and open the Serial Monitor at 115200 baud. Connect a device to the ESP32’s WiFi network using the SSID and password provided. The Serial Monitor will display the AP’s IP address, which you can use for further configuration or testing. Ensure your ESP32 is set up as an AP before running the code.

/*
 * Author: Avant Maker
 * Date: February 7, 2025
 * Version: 1.0
 * Description: This example code demostrates how to retrieve
 * the IPv4 address of the AP device.
 *
 * 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);
    
    WiFi.softAP("AvantMaker-ESP32-AP", "12345678");
    IPAddress apIP = WiFi.softAPIP();
    Serial.print("AP IP address: ");
    Serial.println(apIP);
}

void loop() {
    // Empty loop
}