Hello,
I made a custom PCB with a ESP32-ROOM-32 and after a few cycle of use, my PCB won't start anymore. Five of my ten mountig are not working anymore with the same symptom. The power supply is OK, but when i plug a serial programmer there is nothing on the output.
It seem the ESP32 don't start !
I swapped one of the ESP32 with a brand new one and the problem still persist, i think there is a design problem with my PCB but i don't know where
Here the design
Does anyone already have the same problem ?
Thanks a lot
Julien
ESP32 don't start anymore
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Re: ESP32 don't start anymore
Please follow the requirements outlined in the datasheet and the (relevant section to modules of the) hardware design guidelines. Specifically, in your case I'm missing a RC network on the EN line; you can check if that is the issue by bodging in an 1uF or so capacitor from EN to GND.
Re: ESP32 don't start anymore
Hi,
Thanks a lot for your answer, i soldered 0.1uf capacitor (don't have 1uf) with no result. Still nothing in serial.
I ordered 1uf capacitor in order to make more test
According the documentation and existing PCB, i didn't difference exept the capacitor between EN and GND
Thanks
Julien
Thanks a lot for your answer, i soldered 0.1uf capacitor (don't have 1uf) with no result. Still nothing in serial.
I ordered 1uf capacitor in order to make more test
According the documentation and existing PCB, i didn't difference exept the capacitor between EN and GND
Thanks
Julien
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