Arduino Nano (Original)

1. Operating Voltage (logic level): 5V 2. 8 analog inputs ports: A0 ~ A7 3. 14 Digital input / output ports: TX, RX, D2 ~ D13 4. 1 pair of TTL level serial transceiver ports RX / TX 5. Using Atmel Atmega328P-AU MCU 6. There is a bootloader installed in it 7. Standard 0.1" spacing DIP (breadboard friendly). 8. Manual reset switch.