I am not trying to connect the ESP to an AP. The ESP is in softAP mode and I am trying to connect to it using a phone and/or a PC. These are the softAP credentials: uint8_t DEFAULT_SSID[32] = "DroneBridge ESP32"; uint8_t DEFAULT_PWD[64] = "dronebridge"; Right, sorry about that. I saw in your earlie...

I cannot find any such example. there is an example something with "wearble", but it shows how to access the fatfs from esp32. I would like to fill the filessytem or the partition from the host, which will be then flashed. Can you be more precise, which example you mean? Have a look at the protocol...

Can you clarify what you mean by "anyone"? Do you mean "anyone on my subnet"? Or do you mean something else?

You might find this article of interest: Use UDP Services.

I just compiled the project for my board using the ESP-IDF extension on VSCode, but I still have the same problem. I cannot connect to the AP. I can't connect with the PC nor the mobile phone. Sorry for asking a dumb question, but since you haven't mentioned any details... the posted code they have...

... The following sentences do not match exactly. Specially @mbratch told that you can use the wire based library with ESP-IDF by porting it. If you are using ESP-IDF there is an option for linking in Arduino libraries. ... As you can see from what I had said, I did not mention porting at all.

The error message tells you which file and I hich line in the file. Please provide this information.

Eclipse and VSCode are both very popular in general. I have both environments set up and both work. I prefer VSCode because I find it more readable and the GUI is better organized imho. Pick one and by all means read and follow the installation instructions carefully and precisely. There are lots of...

I'm using the Eclipse plugin with ESP-IDF 4.3 and it appears to work fine. I installed it for the first time a couple if weeks ago, so everything is the latest.

As was asked already, are you using the Arduino framework for ESP32? Then Wire is available. If you are using ESP-IDF there is an option for linking in Arduino libraries.

What does your monitor show in that case, leading up to the reboot? It should log the wifi events. You may have some other error in the code causing a reboot. There's often a log message indicating why the reboot is occurring.