Photon flash memory expansion

General
1

How can I use an external SPI flash chip to expand Photons user memory

2

Depends on the chip used

3

Thanks ScruffR,
I was going to use W25Q64JVSSIM TR., 8 Megabyte flash
But please do make your own recommendation

4

This is a NOR flash hence SPIFFS or FatFs would be libraries to help with that.
Have a look at this

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