ESP32 DEVKITC WROOM 32U cannot connect to home WiFi

[audreylim]

Board

DOIT ESP32 DEVKIT V1

Device Description

ESP32-DEVKITC-32U

Hardware Configuration

Connected to RGB OLED with SPI interface, PIN 18 is connected

Version

other

IDE Name

Arduino IDE

Operating System

Windows 10

Flash frequency

80Mhz

PSRAM enabled

no

Upload speed

921600

Description

Cannot connect to home wifi, but can connect to personal hotspot if the phone is close enough.

I have an ESP8266 which can connect to home wifi with no issues.

Sketch

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

void setup() {
Serial.begin(9600); Serial.println();
  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);

  Serial.println("Connecting to Wi-Fi");

  while (WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print(".");
  }
}

void loop() {
}

Debug Message

.......................................................................

Other Steps to Reproduce

No response

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

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

[me-no-dev]

enable debug in the board menu and provide the logs that will come up in the console :)

[audreylim]

Hmm,

Connecting to Wi-Fi

....[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:391] _eventCallback(): Reason: 201 - NO_AP_FOUND
....[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:391] _eventCallback(): Reason: 201 - NO_AP_FOUND
....[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:391] _eventCallback(): Reason: 201 - NO_AP_FOUND
....[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:391] _eventCallback(): Reason: 201 - NO_AP_FOUND
...

It was able to detect my WiFi SSID with the wifi scan example code.

[me-no-dev]

could you be having some sort of antenna issues with that esp32 module? What is the RSSI reported from WiFi Scan?

[audreylim]

Is this normal?

scan start
scan done
5 networks found
1: SSID (-80)*

It might be due to the 32U module I got which apparently doesn't have an antenna. I'll check again when my other ESP32 modules arrive next week.

32U Antenna:
U.FL connector (which needs to be connected
to an external IPEX antenna) https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf

[jamesi8086]

your module (assuming its the same module I see on Amazon) has an on-board antenna. You might have a lemon.

[VojtechBartoska]

I'm closing this one as duplicate. Please track issue #6379