Hornbill ESP32 Dev - Brownout detector was triggered

Monstercrunch
Posts: 3
Joined: Thu Aug 03, 2017 5:46 pm

Hornbill ESP32 Dev - Brownout detector was triggered

Postby Monstercrunch » Thu Aug 03, 2017 5:53 pm

Hi,

I received my Hornbill ESP32 dev kit and I tried it with the arduino environment. I can compile and send the code to the board, the fade led program works well :)

But things get annoying when I try to use the bluetooth function of the board. I loaded the SimpleBLEDevice example and the only ouput I get is the following one (it repeats over time):

Code: Select all

ESP32 SDK: v3.0-dev-205-g9314bf0d

Brownout detector was triggered

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:0x3fff0010,len:4
load:0x3fff0014,len:588
load:0x40078000,len:0
load:0x40078000,len:10472
entry 0x40078a28
ESP32 SDK: v3.0-dev-205-g9314bf0d
I did some research and people was talking about adding capacitors to stabilize power line. But I'm powering it with USB, shouldn't the 500mA limitation be enought for this board ??

If you see what I'm missing please feel free to give me a hint :)

Thanks !

WiFive
Posts: 2923
Joined: Tue Dec 01, 2015 7:35 am

Re: Hornbill ESP32 Dev - Brownout detector was triggered

Postby WiFive » Fri Aug 04, 2017 5:09 am

Not all USB is created equal. Cables too.

Hornbill looks like it uses a good ldo vreg though.

BuddyCasino
Posts: 262
Joined: Sun Jun 19, 2016 12:00 am

Re: Hornbill ESP32 Dev - Brownout detector was triggered

Postby BuddyCasino » Fri Aug 04, 2017 7:42 am

Yup, check the voltage. I was surprised to find only 4.2V on a cable of mine.

prashant3285
Posts: 1
Joined: Sun Aug 20, 2017 5:22 am

Re: Hornbill ESP32 Dev - Brownout detector was triggered

Postby prashant3285 » Sun Aug 20, 2017 5:25 am

I have the same issue on my Hornbill board.
May be a soldering issue or something with the board design.
My cable works great with nodeMCU - ESP32 Wroom dev board so I would rule out the cable thing.

Nick Chung
Posts: 8
Joined: Sun May 07, 2017 4:40 am

Re: Hornbill ESP32 Dev - Brownout detector was triggered

Postby Nick Chung » Fri Mar 16, 2018 9:34 am

I had the same problem before, because LOW vol (i used 1 diot ) ...just check power is 3.3v in put for esp32. Then check the current power too to make sure it have normal power working. :D

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