Yes.

Just follow the MQTT process of subscibe/...

I am using MQTT for sensors/actuators on esp32.

Cool, but how to write this ? As i am new to idf.

Is there any other way than port forwarding?

To expose expose internal ESP32 WebServer externally ?
No !

And to control ESP32 over wifi from anywhere? How can we do that?

Can i control an esp32 connected to my home wifi using MQTT server of any broker and pass a command to esp32 like "0" or "1"? Brokers like adafruit.io or eclipse.io.

I am using esp-idf for my project.

Of course the router need to be configured to provide proper port forwarding.
You've asked how to get ESP32 WebServer exposed, but now you are talking about MQTT, which is completely different thing ...

Is there any other way than port forwarding?

I am not sure, whether port forwarding will be safe for the esp32. I read a few articles which says its not safe.

What do you mean by "not safe" ?
Exposing an ESP32 on extranet, such on port 8080, where this ESP32 is only providing WebServer, isn't giving much chance to any intruder to do ...

Thanks, figured it out.

Is there any alternative to port forwarding, for creating a public web server?


What do you mean ? If your ISP is blocking the port 80, you can use any other ports, such 8080.


I am not sure, whether port forwarding will be safe for the esp32. I read a few articles which says its not safe ...

My question is how to host a server accessible from anywhere in the world.

Using "port forwarding rules" on your router ...

Is there any alternative to port forwarding, for creating a public web server?

Hi,
With the below example, I can pair my phone to an ESP32. But the passkey is shown to the user at phone's end and the user just has to click OK for pairing.

But I need the user to enter the passkey for pairing, which I can see in IDF monitor. So, only those who know the key can pair to the ...

Is there any documentation for guys like me with no knowledge of ESP to use ESP-IDF and write custom programs?

There's no official documentation for complete beginners to ESP-IDF, as the amount of prerequisite knowledge required to use ESP-IDF is not exactly small. Could you provide more ...