ESP32 - WIFI connect

ESP32 WiFi Connect Example

Introduction

ESP32 Wi-Fi Connect -

The ESP32 board can act as Wi-Fi Station, Access Point or both. To set the Wi-Fi mode, use WiFi.mode() and set the desired mode as argument.

Wi-Fi Station -

WiFi.mode(WIFI_STA) - station mode: the ESP32 connects to an access point

When the ESP32 is set as a Wi-Fi station, it can connect to other networks (like your router). Your can connect to ESP using the IP address assigned by router.

Wi-Fi Connect -

The ESP32 can connect to Wi-Fi networks within its Wi-Fi range.

Step 1: Connect Board to Laptop

Step 2: Wi-Fi Connect Example Code

Select boar ESP32 DEV Module from Tools >> Boards menu, then select appropriate com port. Upload this program to ESP32.

#include "WiFi.h"

const char* ssid = "yourNetworkName"; //enter your wireless ssid

const char* password = "yourNetworkPass"; //enter your wireless password

void setup() {

Serial.begin(115200);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {

delay(500);

Serial.println("Connecting to WiFi..");

}

Serial.println("Connected to the WiFi network");

// Print local IP address

Serial.println("WiFi connected.");

Serial.println("IP address: ");

Serial.println(WiFi.localIP()); //show ip address on serial monitor

}

void loop() {}

Points to note -

Use WiFi.status() != WL_CONNECTED to check if ESP32 is connected to wifi
In case WiFi Connection lost then ESP32 WiFi Library takes care of re-connection to WiFi.
Do not use any function that takes longer time in loop(), it will reset the ESP with Error: WDT reset
ESP32 Connects to only 2.4GHz WiFi

Download Code

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