Failure in ESP

eli_az
Posts: 16
Joined: Tue Jun 05, 2018 11:30 am

Failure in ESP

Postby eli_az » Thu Feb 07, 2019 10:29 am

Hello,

I am using ESP in Sparkfun Module ESP 32 thing.
I had come upon a concerning failure a few times.
The component was in the oven in 85°C and I was using it and another ESP32 as client and server, respectively.
After the server was set up as AP and the client tried to connect the client got stuck.
I noticed that lowering the voltage to the ESP32 thing and causing brown-out solves it.
The phenomena I described happened a few times. Do you have any idea what causes it?

Best Regards,
Eli

ESP_Sprite
Posts: 8921
Joined: Thu Nov 26, 2015 4:08 am

Re: Failure in ESP

Postby ESP_Sprite » Sat Feb 09, 2019 10:44 am

No clue, but note that while the ESP32 supports a very wide temperature range, other parts (flash, LDO, ...) may not be specced for 85C.

eli_az
Posts: 16
Joined: Tue Jun 05, 2018 11:30 am

Re: Failure in ESP

Postby eli_az » Thu Feb 14, 2019 12:01 pm

I also recreated the phenomena in room temperature. It seems statistical and doesn't have to do with temperature.
Any ides to why this can happen?

ESP_Sprite
Posts: 8921
Joined: Thu Nov 26, 2015 4:08 am

Re: Failure in ESP

Postby ESP_Sprite » Fri Feb 15, 2019 2:00 am

Hard to say, your problem as it is at the moment is 'the ESP32 stops working sometimes'; you'd need to be a lot more detailed before we can help you figure out what the issue is. Obvious first question: can you get the same results on a different devboard? (Either a 2nd Thing or something entirely different)

eli_az
Posts: 16
Joined: Tue Jun 05, 2018 11:30 am

Re: Failure in ESP

Postby eli_az » Mon Feb 18, 2019 9:20 am

I could not get the same result from a different board(thing or other).
I would be glad to provide any other needed details.

ESP_Sprite
Posts: 8921
Joined: Thu Nov 26, 2015 4:08 am

Re: Failure in ESP

Postby ESP_Sprite » Tue Feb 19, 2019 3:00 am

Then my guess would be that your board is broken somehow :)

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