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ESP32-CAM no IP address found

Q&A Forum › Category: ESP32 › ESP32-CAM no IP address found
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yvonne asked 6 years ago

Dear Rui,

I follow your ESP32-CAM video streaming and face recognition with Arduino IDE article.

After a lot of trouble, I succeeded to upload the code to the ESP32, but opening the serial monitor I don’t see the IP address as described in your manual.

This is what is written in the serial monitor:

Rebooting...
ets Jun 8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1100
load:0x40078000,len:9232
load:0x40080400,len:6400
entry 0x400806a8
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x400df9e0: 15294158 f07d1a0c f03df03d
Core 0 register dump:
PC : 0x400df9e6 PS : 0x00060330 A0 : 0x800dfa5c A1 : 0x3ffe3b20 
A2 : 0x000000ac A3 : 0x0000000e A4 : 0x3ffaff60 A5 : 0x3ffaff48 
A6 : 0x00000000 A7 : 0x00000000 A8 : 0x800df9ce A9 : 0x3ffe3b00 
A10 : 0x00000001 A11 : 0x3ff001bc A12 : 0x00000001 A13 : 0x00000020 
A14 : 0x0000001f A15 : 0x00000001 SAR : 0x0000001f EXCCAUSE: 0x00000000 
EXCVADDR: 0x00000000 LBEG : 0x4000c2e0 LEND : 0x4000c2f6 LCOUNT : 0x00000000
Backtrace: 0x400df9e6:0x3ffe3b20 0x400dfa59:0x3ffe3b60 0x4012ff66:0x3ffe3b90 0x401303a7:0x3ffe3bb0 0x400e369d:0x3ffe3bd0 0x40083e66:0x3ffe3bf0 0x400840f4:0x3ffe3c20 0x40078f2b:0x3ffe3c40 0x40078f91:0x3ffe3c70 0x40078f9c:0x3ffe3ca0 0x40079165:0x3ffe3cc0 0x400806da:0x3ffe3df0 0x40007c31:0x3ffe3eb0 0x4000073d:0x3ffe3f20

I disconnected the ground and pushed the rst button on the module. It  scrolls this text over and over again.

Do you have any idea what is happening. The SSID and password are correct in the code.

Thank you in advance.

Yvonne de Vries

1 Answers
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Sara Santos Staff answered 6 years ago

Hi Yvonne.
When you get that error, sometimes you need to reset the ESP32 several times, and then try to upload the code again (sometimes doing just that solves the problem).
It can also be some sort of hardware issue like:

  • Poor quality USB cable;
  • USB cable is too long;
  • Board with some defect (bad solder joints);
  • Bad computer USB port;
  • Or not enough power provided by the computer USB port.

Which FTDI programmer are you using to connect your board? Some readers reported similar errors when using the CH340 model.
Also, try powering the ESP32-CAM with 5V and see if that solves the problem.
I hope this helps.
Regards,
Sara