Also, what means "<- CORRUPTED" in a backtrace? That the stack pointer may be messed up? The docs don't seem to explain it

Ah ok. So it doesn't work like that with Arduino-ESP32. Do try/catch statements work at all? Or just not with exceptions? Will post the error log when it happens again. For some weird reason it didn't happen in the past few hours however. It's one of those exceptions which don't always happen, likel...

So I get reboots like these, and it takes quite some effort to pinpoint the cause: Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. It specifically says "Exception was unhandled", so I assume there is a way to handle the exception. However when I put a try-catch stat...

Not sure if this works for other MCUs, but it works for ESP32-S3. Put this at the beginning of your sketch (increase size if needed)

SET_LOOP_TASK_STACK_SIZE(16 * 1024); // 16KB

I've been playing around with the ESP32-S3-WROOM-1 in the past few days. You can use GPIO 19 and 20 as USB pins for flashing via USB connection, without any additional hardware needed (though you may want to add a ferrite bead for noise reduction and some 22pF capacitors on D+ and D-, because I don'...

I don't think that's natively possible with the S2. If I remember correctly it will be possible with the S3 (or was it C3?) Maybe it's possible to write something like the OTA update. Code which accepts uploading of the compiled binaryover USB serial and then flashes it. Won't be easy to make it wor...

I think you need to install this driver. And compile your code with CDC enabled.
https://github.com/hathach/tinyusb

Maybe I should have been more clear. Your NodeMCU most likely comes with a voltage regulator, so you can feed it with 5V. But the ESP module on that board only runs on 3.3V. So the GPIO pins only output 3.3V. So usually you don't need a seperate 3.3V power supply.

If your code is written for the Arduino IDE, then it should work. Never found a library (except the LowPower library) which worked on ATmega328 but didn't work on ESP8266/ESP32. So porting your code shouldn't be a big deal. Note that you can't run ESPs on 5V. The GPIOs typically all run on 3.3V. So ...

MVIO like in the AVR128DB32. E.g. to use it as a level shifter.