ESP Now Master/Slave examples not working on ESP32-PICO-KIT D4 V4.1

[knightridar]

ESP Now Master/Slave examples in Arduino IDE not working on ESP32-PICO-KIT D4 V4.1

I'm loading these into two different (master/slave) ESP32-PICO-KIT D4 V4.1 development kits and get the following error on the serial monitor in the Arduino IDE for both of them:

Code: Select all

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 188777542, 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:928
ho 0 tail 12 room 4
load:0x40078000,len:8740
load:0x40080400,len:5788
entry 0x4008069c

Brownout detector was triggered

Any idea why this is happening?

Thanks

[idahowalker]

With the words about brown out detected that might mean power issues? I run ESP32's from a powered hub when connected to my computer.

[knightridar]

Thanks you are absolutely right.

The pc I was using had 2 front usb ports it didn't work on.
The 3rd front USB port that you can quick charge from didn't give the same issue.
It worked fine.