So your 8KB of data will last forever, but what about the firmware required to access it running on flash?
The more you read is just gets wilder and wilder.
I’m admittedly interested now.
I’m going to get one for my favicon.
The other flash chip storing program code for the rp2040 will decay before then making the longevity marketing dumb
- Print out 8KB on high quality paper.
- Store in good environment…
just print something like a QR code in absurd resolution and read it in a document scanner, a single sheet of A4 should be able to fit quite a lot of data.
I was curious, so I looked it up and it seems that around 3KB is the max for a single 177x177 code (though I imagine this is a “soft” limit?). With 600DPI being common for laser printers, a DPI-limited 3KB would be well under 1cm x 1cm. My hunch is that this wouldn’t be super reliable (DPI limit not necessarily the resolution of the printer?), but I’d be curious to see what the usable QR density actually is. But yeah…a few QR codes should do the trick!