ESP32-WROOM-32U Stable with mqtt To communicate with the server (AZURE etc.)

[N20220322]

ESP32-WROOM-32U Stable with mqtt To communicate with the server (AZURE etc.)

What do you need?

Especially in places where nothing is entered
Controlling pull-up
Is there anything I have to do?

I want to know.

Others due to ground problems on the circuit, etc.
In the problems that arise
If there is a factor that causes an event that makes communication unstable
So what?

please tell me.