OK,
Finally, I've got it!
The sequence to retrieve the Serial communication is to depress the BOOT button for a few seconds at power on.
However, each time I load a script with some deep sleep command(s), the Serial port disappears, and I have to enforce the BOOT sequence again.
I need to do more ...

Hi,

I use an ESP32-S3 super mini with the Arduino IDE on a Raspberry pi 5.

I could download several scripts after ensuring that the "USB CDC On boot" is enabled.

The last script that I downloaded (testing deep sleep mode) was successful, but after it, the serial port disappeared.

There is no ...

Well,
This is a stupid question of course.
CTR+[x] is not to handle as an ASCII character (as for normal data entry) but as a string of binary code.
Typically CTRLC sends to the server a hexadecimal string of FFF4FFFD06.
So I did manage to handle these specific strings with my telnet server ...

Hi,

I have a Telnet server running that stops to work when a telnet client sends a CTRL C character.
Is it a way to catch this break character from the client.

The script is in C++ compiled with ARDUINO IDE
Thanks in advance

Hello,
I hope this is not a stupid question !!!
Is it possible to use FFAT file system with an SD card rather with memory?
I would like to use RRD tools as central database (on SD card) to collect and later graph sensor data.
According to https://github.com/lbernstone/rrdtool_ESP32, FFAT is the only ...

Is it Arduino which is responsible to port the ESP32 library to the Arduino IDE ?
I read in the library header:
Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD

It doesn't matter which platform to use, explanations of this issue using the ESP-IDF libraries is also OK for me.

Robert

Hi,

I try to understand how the ESP32 SPI library manages concurrent SPI access on the same bus and more specifically when a transaction is initiated by an Interrupt.

For interrupts, the Arduino SPI library manages that type of conflict using the SPI_HAS_TRANSACTION flag allowing the use ...

OK .... I understand it but after some tests despite the fact lack of documentation (with the exception of the one of Kolban)
Thanks
Robert

Hello,

I couldn't find in the ESP32 documentation any reference to Is this function obsolete or replaced by : Alternatively where can I found a description and of course the need to use various gpio_pad_xx() functions.

Thanks in advance
Robert

Hi,

I am using the CameraWebServer example with an ESP32-CAM without problem, however I couldn't find a way to protect the server access with username and password.

This sketch is using the esp_http_server.h library and after reading the https://docs.espressif.com/projects/esp-idf, I was unable to ...