ESP32 Forum

Posted: **Sat Dec 29, 2018 4:46 am**

Is i possible to write a unique id (with 64 to 128 bytes size) into a specific location in the esp32 internal flash memory without effecting the application code using the esptool.py.

Posted: **Fri Jan 04, 2019 8:05 am**

If I understand you right the 'Non-volatile storage library NVS' could be a good solution
I tried it once to store a name string of sound-light installations, and it worked fine
( I did #include <Preferences.h> to make it easy)

If nvs entry size (32bytes, I think) is too small you can use multiple entries for your data

ESP32 Forum

Is writing unique Id directly in esp32 using esptool.py possible ??

Is writing unique Id directly in esp32 using esptool.py possible ??

Re: Is writing unique Id directly in esp32 using esptool.py possible ??