ESP32 Forum

detail

The program is created with Arduino and
I'm writing.

Transmission format MQTT
am.
The following will happen.
Operate about 30 units with the same board and the same program,
I wrote the program and it worked fine. after that
Keep working,
About 20 hours later
Only one
Wifi does not connect.
And when you open the serial
The data rst: 0x3 (SW_RESET), boot: 0x13 (SPI_FAST_FLASH_BOOT) is output as eternity.

As per the attached file.

Only 1 out of 30
Wifi not connected
It became like the following URL.
URL https://www.dropbox.com/s/msrdrewndiqe9 ... 2.png?dl=0
Is there anything you can think of?

please tell me.

Try getting a good power supply that can handle 1A of current.

If that doesnt work, erase flash and upload the firmware to the ESP32 again.

Thank you very much for contacting me.

This problem
Is it possible that there is a shortage of current?

The power supply is 500mA.
However, other microcomputers are connected.

Main body from the outside
There is no blame for being touched

Only communication from the ESP32 to the server
Because there is no communication from the server to the ESP32

I don't think the following is relevant.
Is this idea correct?

https://limitedresults.com/2019/11/pwn- ... xtraction/