Seeeduino Stalker v3 data flash

whether seeduino stalker v3. owns the data flash memory or no so the data can only write to the sd card

Yes.Seeeduino Stalker v3 uses ATMega328 which has an internal EEPROM of 1K.For larger data use external SD card.


Thanks for your interest in Seeeduino Lotus. Seeeduino Lotus is geared towards beginners and avoids complexities. The idea was to provide a board for novoices to use ATMega328 with the Grove connectors and modules alone.