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Built in USB so it has USB-to-Serial program & debug capability built in with no need for an FTDI-like chip
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ATSAMD21G18 @ 48MHz with 3.3V logic/power ^^ 256KB of FLASH + 32KB of RAM ^^ Easy reprogramming ^^ Built in USB so it has USB-to-Serial program & debug capability built in with no need for an FTDI-like chip
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First Listed on Newegg
December 29, 2025
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