Make sure you are using the latest version (3.0.7) and using the matching Scan sketch . I'd also recommend you use the NimBLE library rather than the included bluedroid. If you need additional help, you will need to access the serial log, and set core debug level to verbose. It is difficult to troub...

Please note this is an english forum. Please post in english. The platformio team is not currently supporting arduino-esp32 v3.x. You can use the community version by changing your platformio.ini to point there: platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.07...

You haven't included sendHTML, which presumably is what doesn't work. I would recommend you move the handler to a separate function, rather than trying to handle this as a lambda function, and don't pass String objects back and forth. That tends to leak memory, and is the explicit purpose of pointers.

mDNS name resolution is not available by default on (most) Android, so unless your mqtt client (or phone) specifically supports it, this is not going to be possible.

https://github.com/espressif/arduino-es ... Client.ino
You must supply a certificate, or tell NetworkClientSecure to setInsecure.

I think UART is probably easier to implement, but take a look at https://github.com/espressif/esp-serial-flasher

It's working for me, and it sounds like the plugin upload is working for you. Make sure all your settings are correct for flash mode/size (OPI/16MB). Turn core debug level to verbose and see if you get any additional information about why the filesystem is unable to mount. Enable the "erase all flas...

The plugin from @lorol is working for me. Run the LittleFS_Test sketch, and set FORMAT_LITTLEFS_IF_FAILED to false. Make sure you don't have "Erase all flash before upload" enabled.

There is a board in the list called "ESP32S3 Dev Module Octal (WROOM2)" that has the right settings for your device.

Don't use "pin numbers", those only matter to the eCAD program you are using. On the software side, we will always use gpio numbers to avoid this confusion. The boot flash uses gpio 6-11, whatever pins those may correspond to (or even if it is on-chip and there are no pins). The other SPI busses can...

No, the main spi flash is on pins 6-11. Those should not be used. There are 2 SPI (HSPI&VSPI) busses available for user access. https://docs.espressif.com/projects/esp-dev-kits/en/latest/_images/esp32_devkitC_v4_pinlayout.png https://github.com/espressif/arduino-esp32/blob/2.0.0-alpha1/docs/esp32_pi...