Start in the same state after turning the power off and on

[ruilviana]

@markd833

I'm not sure that writing 0 to the flash will work. It all depends on how the flash library handles writes. I

Hi @markd833
Before publishing the code I tested it here with an Arduino Due and it worked correctly.

I used the reset, turned it off and on several times and the flash value remained.
Only returned to 0XFF when re-uploading the code.

RV mineirin