Arduino Nano V3.0 Development Board – Clone Compatible Model (Unsoldered)
$ 1.98
Operating Voltage (logic level): 5V With Soldered Connector 8 analog inputs ports: A0 ~ A7 14 Digital input / output ports: TX, RX, D2 ~ D13 1 pair of TTL level serial transceiver ports RX / TX Using Atmel Atmega328P-AU MCU There is a bootloader installed in it Standard 0.1” spacing DIP (breadboard friendly). Manual reset switch.

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