Flashstorage library noob questions

Using Arduino Programming Questions
1

Hi guys!

I'm a little green with programing a EEPROM and an emulated stuff.

Situation: I have an Arduino zero SAMD21:

  • write a non-volatile variable "container_full"=1
  • read the container_full variable several times
  • delete content of "container_full" variable (I think this can make it zero)

Can this approach wears severely the Flash memory? It will be two writes per day.
Shall I use external memory?

All the best!

2

According to Arduino Zero — Arduino Online Shop doesn't have EEPROM, however it comes with 256KB of flash memory which will be used for storing permanent data. A workaround for this issue is to use a library that supports wearleveling like GitHub - PRosenb/EEPROMWearLevel: Arduino EEPROMWearLevel reduces EEPROM wear by writing a new value to an other EEPROM location..

1 Like
3

It will survive for half a million days...
Will you still be there?

4

So, I guess I have to use first this library:

and on top of that the one you've suggested?

5

Hello, how you've come up with that number?
From the library page if 10K writes have to taken under consideration I'll get a 13 years of daily writes.

6

Is that not sufficient?
And if not, reprogram every year...
Unless you will sell thousands of these concealed in a waterproof housing..

7

Yes, it will be OK. I wanted to know if this really works or I have to make HW modifications.

And to be on the safe side what @pcbcrew has suggested might come in handy!

Thanks @build_1971 & @pcbcrew

8

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