Pro Mini Atmega168 5V 16M/Atmega328P 3,3V 8M Board Ersatz für Arduino Nano
ab 4,26 €
Arduino-compatible Board. USB connection off board. On board Power and Status LEDs. The TTL level serial transceiver port RX/TX. hope you could understand. Support 9V battery-powered. Size：（Long）33mm （wide）18 mm （high）6mm.
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