Pro Micro ATMEGA32U4 3.3V/5V 8/16MHz USB Controller Board Bootloader Module
ab 1,37 €
The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface. 5.0V 16MHz. Running at 16MHz and 5V, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere.
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