"error: 'WiFi' was not declared in this scope"

[maxcraig112]

Board

ESP32-H2

Device Description

Device on plain breadboard connected to laptop via USB C, running arduino-ide

Hardware Configuration

Board selected: ESP32H2 Dev Module
No pins connected
COM11

Version

v3.0.4

IDE Name

ARDUINO IDE

Operating System

Windows 11

Flash frequency

90MHZ

PSRAM enabled

yes

Upload speed

921600

Description

Trying to set up Wifi of any form with the ESP32-H2, and am coming across the following error, suggesting that the wifi module is not properly installed for this version and ESP

Sketch

#include <iostream>
#include <WiFi.h>

const char* ssid = "home";
const char* password = "***";

void setup(){

    WiFi.begin(ssid, password);
    Serial.println("\nConnecting");

    while(WiFi.status() != WL_CONNECTED){
        std::cout << "." << std::endl;
        delay(100);
    }

    std::cout << "\nConnected to the WiFi network" << std::endl;
    std::cout << "Local ESP32 IP: " << std::endl;
    std::cout << WiFi.localIP() << std::endl;
}

void loop(){}

Debug Message

C:\.arduinoIDE-unsaved202475-41180-19c449o.0egbj\sketch_aug5a\sketch_aug5a.ino: In function 'void setup()':
C:\.arduinoIDE-unsaved202475-41180-19c449o.0egbj\sketch_aug5a\sketch_aug5a.ino:9:5: error: 'WiFi' was not declared in this scope
    9 |     WiFi.mode(WIFI_STA); //Optional
      |     ^~~~
C:\.arduinoIDE-unsaved202475-41180-19c449o.0egbj\sketch_aug5a\sketch_aug5a.ino:9:15: error: 'WIFI_STA' was not declared in this scope
    9 |     WiFi.mode(WIFI_STA); //Optional
      |               ^~~~~~~~
C:\.arduinoIDE-unsaved202475-41180-19c449o.0egbj\sketch_aug5a\sketch_aug5a.ino:13:28: error: 'WL_CONNECTED' was not declared in this scope
   13 |     while(WiFi.status() != WL_CONNECTED){
      |                            ^~~~~~~~~~~~

exit status 1

Compilation error: 'WiFi' was not declared in this scope

Other Steps to Reproduce

Attempting to verify or upload the code returns the error.

Reverting to previous versions, such as 2.0.14 stops this issue from happening, but ESP32-H2 is not supported in this version. Even the earliest version that has ESP32-H2 3.0.0 has this error

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[P-R-O-C-H-Y]

Hello @maxcraig112, the ESP32-H2 does not have Wi-Fi. The chip has IEEE 802.15.4 for Thread, Zigbee, Matter + Bluetooth 5 (LE). You can also check this list of supported/available peripherals for ESP32H2: #6854 (comment)

[OrhanYigitDurmaz]

you guys should add checks for these too just like the usb ones

[P-R-O-C-H-Y]

I am closing this issue as solved. The esp32-h2 does not have WiFi and the code is guarded.

[OrhanYigitDurmaz]

I am closing this issue as solved. The esp32-h2 does not have WiFi and the code is guarded.

I meant showing an error saying that wifi is not avaliable on esp32-h2