Good afternoon,

I am working on a program for Esp32S3 and I can use WIFI in station mode or in AP Mode depending on user need/action.

The problem is that my program is quite big and my SRAM is running low.
When I am starting WIFI in Station mode I have 45Ko of SRAM free (Before WIFI Start).
When I ...

Good afternoon,

I am looking at the WIFI STA_AP example program for Esp32S3.
I am reading the main program and I wonder how to start/stop Wifi as a station and start/stop WIFI as an access point separately ?

My goal would be to write a program working as a Station when the program start.
Then when ...

So, as I understand, because I have no USB to UART chip on my board,
I am using USB-CDC and it is not possible to increase the flash speed is it correct ?

Concerning the solution USB-DFU, because the Esp32S3 on the board has no particular bootloader or USB stack,
I can't use USB-DFU. Is it correct ...

I am not working on a Development Board but on a custom design board.
How can I know I am using the usb cdc or not ? All that I know is that the USB pin (USB_D- and USB_D+) from the Esp32S3
are going to a ESDALD05UD4X WEEN chip, then on a USB-C connector ...

Could you please help me to understand ...

Good afternoon,


I am working with an Esp32S3 chip. In order to flash a firmware in the chip, I ma using the following commande line (esptool) :

python -m esptool -b 460800 --before=default_reset --after=hard_reset write_flash --flash_mode dio --flash_freq 80m --flash_size 8MB 0x0 FS22Merged.bin ...

Could you tell me more about this library please ?
Best regards

Good morning,

I am working with an Esp32S3 chip.
I am studying the possibility to exchange datas with a backoffice located on a server (Somewhere on the cloud) using a 5G RedCap Chip (eRedCap in the future).
According to the informations that I found, it should be possible to link the 5G RedCap ...

Good afternoon,

Some years ago, I worked on a Renesas RX65N program and with external help, I managed to
send datas from my program to a broker on the Internet using MQTT.
The communication protocol that I used was LTE-M, NB-IOT
=> So in order to do that, a BG96 chip was put on a satelite card and ...

Perfect, thank you for your answer.
But because you have more knowledge than me, I will ask you the following question :

Do you have any knowledge about MQTT ?
I used MQTT on a LTE-M, NB-IOT network on another project in order to send datas to a Broker (Using its IP address).

Do you know if it is ...

Good afternoon,

I have a question concerning the Esp32S3 chip please.
I am working on a firmware when the pins :
IO45 -> SD-CLK
IO48 -> SD-CMD
IO47 -> SD-DAT0
IO21 -> SD-DAT1
IO14 -> SD-DAT2
IO13 -> SD-DAT3
are used in order to dialog with an external eMMC (If present).

In order to do this, I am ...