Thank you very much liaifat85 for your kind reply.

However, this is directing me to a page where there are lots of details, almost all about software.
I would like to be specific as the title of my post.
What I need is the " correct firmware MQTT at-commands ESP32 WROOM-32 " software download link ...

I am totally new to ESPRESSIF. I have this WiFi WROOM-32 module and I need AT-COMMANDS for an MQTT project. I would like a version with supporting documentation.
Could you please indicate the link for this firmware? Is there any special indication such as totally erase the module or the need of ...

Thank you very much for correcting the title. I am sorry for that.
As I am new to ESP8266 ESP32 and mostly with ESP01, my questions are very basic.
I would need extra guidance, such as specific version number and a link, because there are so many variants that I get confused.
Starting by: if ESP01 ...

Hello all !
For a project that uses a microcontroller connected to a ESP01 module I need to confirm which is the best firmware version to FLASH the module in order to use MQTT via AT commands. If you please include a download link.
I bought a couple of modules that came with a weird firmware version ...

I am new to ESP32. Using freeRTOS in C language for my application, I notice that the chip has individual IO pins. I need to write to an LCD character module display. This devices need the computer to write to a data port (4 or 8 bits wide) plus a couple of clock lines. I can't find the way to ...