Thinknode M3 flash memory
New here. Hello! I am planning to port an embedded application to the M3. Question: does the M3 have an "external" (SPI) flash memory chip, or just the 1MB flash that is built into the nRF52840? Does any of that space appear as a "mass storage device" (a rather small mass) when plugged into a PC via USB? If not as it is, can that be arranged? Do the LoraWAN and Meshtastic models differ on this? If this is not possible, maybe I can use the "EEPROM" flash area - how large is it? Thanks.
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