[self]

This image says 384 KB of RAM: https://docs.espressif.com/projects/esp-dev-kits/en/latest/e...

It also says 320 KB of ROM, which seems low. Judging from the product name (DevKitC-1-N8R4) and their other products, it has 8 MB of flash.

[dezgeg]

Maybe 320KB is the size of the bootrom? Although I don't see why that would be worth mentioning.