What you will get: the package included 2 pieces of nano board V3.0 ATmega328P, each nano V3.0 ATMEGA328P improved version with 3 pieces of pin headers unsoldered and 2PCS Mini USB cable
ATmega328P chips: using Atmega328P-AU MCU, support ISP download, using the same chips ATmega328P and CH340 with the official version
It is a smallest, complete, and breadboard friendly board. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard +5V AREF jumper.
Nano's got the breadboard-ability of the Mini+USB with smaller footprint than either, so users have more breadboard space. It's got a pin layout that works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one top, power and ground on the other).
The Nano can be powered via the Mini-B USB connection, 7-12V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.
Input and output: each of the 14 digital pins on the Nano can be applied as an input or output; Some pins have special functions

Features:

This is a small, complete, and breadboard-friendly board based on the ATmega328P.

CH340G Replace FT232RL

8 analog inputs ports:A0 ~ A7

6 PWM ports:D3, D5, D6, D9, D10, D11

Using Atmel Atmega328P-AU MCU

14 Digital input / output ports:TX,RX,D2 ~ D13

1 pairs of TTL level serial transceiver ports RX / TX

Support USB download and Power.

Support power supply by 9V battery.

Specifications:

Microcontroller: Atmega328P-AU MCU

Operating voltage (logic level): 5 V

Input voltage (recommended): 7-12 V

Digital I/O pins: 14 (of which 6 provide PWM output)

Analog input pins: 8

DC current per I/O Pin: 40 mA

Flash memory: 16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB used by bootloader

SRAM: 2 KB (ATmega328)

EEPROM: 1 KB (ATmega328)

Clock speed: 16 MHz

Package:

2 x Nano V3.0 ATmega328P Board

2 x Mini USB Cable

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