Printing the Unique ID

Hardware Nano Family Nano RP2040 Connect
1

How to print out the unique ID?

2 
#include <ArduinoUniqueID.h>

void setup(){
  SerialUSB.begin(115200);
  while (!SerialUSB);
  UniqueIDdump(SerialUSB);
  UniqueID8dump(SerialUSB);
}

void loop(){
  
}

Source: GitHub - ricaun/ArduinoUniqueID: Arduino Library to gets the Manufacture Serial Number from the Atmel AVR, SAM, SAMD, STM32, and ESP Microcontroller.

3

The library is not for the RP2040

4

Ah yes, the M0+
You may have to write your own from a library for another device. Search for cortex M0+ unique ID and you'll find more info.
Someone else may know but I do not believe this feature has been ported to this chip yet for Arduino.

5

I was needing something like this, a quick fix for me was to read and use the MAC address from the WiFi module - hopefully it's unique, though not guaranteed. If you don't want it to look like a MAC address, convert to dec.

6

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