ESP32 life-time
ESP32 life-time
My ESP32-chips only last half a year. I did reduce frequency form 240 MHz to 160 MHz already. I'm using it for a thermal solar control and this is my fourth chip already.
Last edited by svenbieg on Sat Feb 20, 2021 6:51 pm, edited 5 times in total.
Re: Long live
Sounds bad, but not enough information to know whether to blame the chips or the supporting circuitry or operating conditions.
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Re: Long live
+1, I'm curious what you're doing with them. Anecdotally, I have ESP32s in use for way longer than that and they still work fine.
Re: Long live
What am i doing wrong? I have 5 analog Inputs and a driver for the relais, some RGB-Leds and a display. The voltage is regulated by an LD33V. The controller is inside of the house, there are always about 20°C. Everything works fine for months.
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Re: Long live
How exactly does it fail when it fails? Do you have a schematic? Especially with a relais or external analog inputs, high-voltage spikes could play a role here.
Re: Long live
I'm using a voltage divider with the 3.3V supply-voltage, the relais are driven with 5V by an ULN2003. I just wanted to know if this a known problem of the ESP32. I'm going to try the DevkitC, maybe the chip got too hot when i was soldering it on the adapter.
Re: Long live
The first chip hung up and restarted after few seconds, so i reduced the frequency. The second chip was my fault, i erased flash too often. Last time the chip didn't drive the LEDs anymore after few weeks.ESP_Sprite wrote: ↑Sat Feb 20, 2021 9:51 amHow exactly does it fail when it fails? Do you have a schematic? Especially with a relais or external analog inputs, high-voltage spikes could play a role here.
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Re: ESP32 life-time
Strange. Without a proper schematics, there's nothing I can say about why it died, but our chips have been designed to work for years and years and them dying after such a short time certainly isn't something that commonly happens.
Re: Long live
Just to check I understand: the first chip stopped working at 240MHz but can work at 160MHz still? That's quite odd!svenbieg wrote: ↑Sat Feb 20, 2021 12:46 pmThe first chip hung up and restarted after few seconds, so i reduced the frequency. The second chip was my fault, i erased flash too often. Last time the chip didn't drive the LEDs anymore after few weeks.ESP_Sprite wrote: ↑Sat Feb 20, 2021 9:51 amHow exactly does it fail when it fails? Do you have a schematic? Especially with a relais or external analog inputs, high-voltage spikes could play a role here.
Regarding "erased flash too often", are we talking >100,000 erase cycles here?
Re: ESP32 life-time
No, the first chip doesn't work anymore. I reduced frequency on the second chip. Your chip was designed to work many years, but is anyone out there who has chips working that long?
Last edited by svenbieg on Tue Feb 23, 2021 7:26 pm, edited 2 times in total.
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