[CLOSED]"Brownout detector was triggered" failure on my ESP32

[Python Schlange]

Hello,
I tried to upload my code, everything worked but when I opened the Serial Monitor, it showed me that Issue:

Code: [Select all] [Expand/Collapse]

1. Brownout detector was triggered
2.  
3. ets Jun  8 2016 00:22:57
4.  
5. rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
6. configsip: 0, SPIWP:0xee
7. clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
8. mode:DIO, clock div:1
9. load:0x3fff0018,len:4
10. load:0x3fff001c,len:1216
11. ho 0 tail 12 room 4
12. load:0x40078000,len:9720
13. ho 0 tail 12 room 4
14. load:0x40080400,len:6352
15. entry 0x400806b8

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PS: I tried to search a topic, but I just got a blank page so I started a new topic.

[lbernstone]

Your USB port is not providing enough power. Try another port, or else you will need an external power source (perhaps a powered USB hub).

[ESP_Sprite]

Also, suspect your USB cable. There are some with extremely thin conductors out there.

[Python Schlange]

Sorry for the whole topic, just realized I had got the wrong Uploadspeed (921600) .
Changed it to 115200 and everything is working

[ESP_krzychb]

Hi Python Schlange,

Upload speed should not be the issue. This message is reported when voltage supplied to the chip gets too low. A spike below the brownout voltage (I believe default is 2.44 V) is enough to trigger this error. If you see this message again try replacing power supply, USB cable, install capacitor on power supply terminals of your module, etc.

Also refer to https://github.com/nkolban/esp32-snippets/issues/168 for related discussion.

[Arav24]

Im having the same issue, Does this problem impact NVS storage?

[Arivenkkataram]

Hello everyone, I purchased two ESP32 WROOM 32 boards, but one works fine while the other displays a brownout error. After investigation, I found that the issue is due to an improper power supply to the AMS1117 IC 3.3V regulator on the faulty board. Although the board's maximum current rating is 0.15A, which allows for successful program uploading, running the program on the ESP32 requires a higher current rate. This triggers the brownout detector when connecting to WiFi and performing other tasks. To resolve this issue, I replaced the AMS1117 IC 3.3V regulator. After replacing the AMS1117 IC 3.3V, the ESP32 board now works fine.