Hey, I'm thinking about using an M5StickC and I've decided that I need to extend it with an external physical persistent memory (sending data over WiFi won't do). Initially I was planning to use a Proto Hat with an SD card reader mounted, but I've found this topic saying that the M5StickC does not support SD cards. If that's the case, what are the other resonable options of extending M5Stick's persistent memory (I'm a newbie in the microcontrollers, but I'm eager to learn!).

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