ESP32 Forum

How do I get a unique number in ESP32?

Hello, there Espressif team!

I'm working with the ESP32 and I would like to get a unique number on each board that I'm using.

I'm using ESP.getEfuseMac() function but I already found two boards with the same number, and I have been reading several posts but I can't get a clear answer.

Is it possible to get a unique number for each ESP32 that I'm using?

Thanks a lot in advance

You can change the MAC address. Here is a tutorial that you can follow:
https://randomnerdtutorials.com/get-cha ... s-arduino/