ESP32 Not Connecting to Wi-Fi (Mobile Hotspot - 2.4 GHz, GPIO0 Grounded)

Need Help With My Project
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Hi experts,

So, I’m making a smart energy meter using IoT with theft detection system.
I’m working on a project using an ESP32 and I’m facing an issue with connecting it to Wi-Fi. Here’s what I’ve done and observed:

  • I’m using my mobile hotspot (Samsung Galaxy) as the Wi-Fi network.
  • The SSID and password are correctly entered in the code.
  • My hotspot is set to 2.4 GHz , not 5 GHz.
  • The ESP32 uploads the code successfully via Arduino IDE.
  • However, it fails to connect to Wi-Fi — it just keeps printing “Connecting to WiFi…” endlessly in the Serial Monitor.
  • I also noticed that GPIO0 is connected to GND while uploading the code but removed from ground when its booting the code.

I tried:

  • Resetting the ESP32
  • Replacing the hotspot with another phone
  • Verifying the credentials

But still no luck.

Is there something else in the code/setup that might be wrong?

Thanks in advance for any help!

2

That’s hard to say, as you have t shared your code or the exact details of your setup. Seeing EXACTLY what appears in your serial monitor would also be useful.

Pete.