... source , ultra-small Simple i / o platform , compared with the prior version of USB Arduino Diecimila , Arduino Nano in size accounted for ... . A**o Nano technology parameters :1.14 digital input / output port TX , RX, D2 ~~ D132.8 analog input ports A0 ~ A7Of ... level serial transceiver port RX / TX4.6 PWM port , D3 , D5 , D6, D9, D10, D115. Atmel Atmega328P-AU microcontroller6 USB download and power7 ...