ESP32 "Flash EEPROM"

[dvcam99]

Hello FC community,

I`m looking for a way in order to store and receive byte values into ESP32 flash.

Unfortunately the Flash EE Prom Component is not working. I`ll get a compiler error.

Any suggestions is apreachiated and welcome.

BR

Dirk

[stefan.erni]

Hi Dirk

I don't know if this will help you.
I have several ESP32s, each with a fixed calibrated sensor.
For each ESP32, there are values from the calibration machine that are stored in the Flowcode program.
I read the MAC address from the ESP32 and then assign the appropriate values.

read mac adress for matching data:
viewtopic.php?t=3407

[mnfisher]

The esp32 doesn't really have any EEPROM - you can use flash memory as persistent store, or the RTC has some memory that is non-volatile too.. There is a post about SPIFFS and also using RTC memory - though will take a bit of searching..

https://www.flowcode.co.uk/forums/viewt ... lit=spiffs
https://www.flowcode.co.uk/forums/viewt ... rtc+memory

Note that both these posts are quite old - and with the rapidly changing esp32 environment might take a little work to get going...

Martin

[dvcam99]

Many thanks Martin,

I will check your suggestion.

BR

Dirk

[chipfryer27]

Hi

Using an ESP "lolin-lite" I have used the EEPROM 2D component to good effect. As Martin states above it isn't really EEPROM but not so much you'd notice It saves data and can be read back upon reboot etc. It would probably work for other variants and no harm in trying.

Regards

[dvcam99]

Hello guys,

I can confirm that the Code Abstraction Layer EE-Prom will work an do the job.



Thanks for pointing me in the right direction.

BR

Dirk