I accidently connected a wire that was grounded to the VIN 5v pin on the esp32. It started smoking and i immediately removed the pin and cut power to the esp32. Does anyone know what i need to replace in order to fix it? Now, when i upload a sketch that uses wifi, it can never boot and the serial just says "brownout detector was triggered" other sketches seem to work fine
The whole board - You have no ay of knowing what has been damaged, besides the Microcontroller.
Well, things like that happen to every beginner. And if you have not burnt at least one chip, then you have not startet electronics.
At least: if you see smoke, you now for shure whichpart is burnt beyond repair. If not, thouching every part with your fingertip, to see which one is hot, might help as well. But be carefull, you might burn your fingertips.
At the end: you just have to replace the whole chip, or in this case the whole board. Soldering a new chip to the dev-board seems tricky. And a new board isn't that expensive any more.
I appreciate your replies, but after some further research and testing, I have found that my chip and actually most of my board is completely fine. I just fried a single diode. Using a jumper across it's contact points fixes the issue, and even without the jumper, I can power the board manually through the ground and 5v pin from another source (e.g. another arduino board). I'm gonna link the sources i found in case someone else ever comes across this post looking for an answer to a similar issue.
blog post of someone diagnosing this exact issue:
thread explaining the issue:
nodemcu-32s schematic:
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