Arduino Nano A000005 User manual

Arduino® Nano
1 / 13 Arduino® Nano Modified: 29/06/2022
Product Reference Manual
SKU: A000005
Description
Arduino® Nano is an intelligent development board designed for building faster prototypes with the smallest
dimension. Arduino Nano being the oldest member of the Nano family, provides enough interfaces for your
breadboard-friendly applications. At the heart of the board is ATmega328 microcontroller clocked at a frequency
of 16 MHz featuring more or less the same functionalities as the Arduino Duemilanove. The board offers 22 digital
input/output pins, 8 analog pins, and a mini-USB port.
Target Areas
Maker, Security, Environmental, Robotics and Control Systems

Arduino® Nano
2 / 13 Arduino® Nano Modified: 29/06/2022
Features
ATmega328 Microcontroller
High-performance low-power 8-bit processor
Achieve up to 16 MIPS for 16 MHz clock frequency
32 kB of which 2 KB used by bootloader
2 kB internal SRAM
1 kB EEPROM
32 x 8 General Purpose Working Registers
Real Time Counter with Separate Oscillator
Six PWM Channels
Programmable Serial USART
Master/Slave SPI Serial Interface
Power
Mini-B USB connection
6-20V unregulated external power supply (pin 30)
5V regulated external power supply (pin 27)
Sleep Modes
Idle
ADC Noise Reduction
Power-save
Power-down
Standby
Extended Standby
I/O
22 Digital
8 Analog
6 PWM Output

Arduino® Nano
3 / 13 Arduino® Nano Modified: 29/06/2022
4
4
4
4
4
4
5
5
5
6
6
7
7
7
7
7
7
8
9
9
10
10
11
11
11
12
12
13
13
13
Contents
1 The Board
1.1 Application Examples
1.2 Accessories
1.3 Related Products
2 Ratings
2.1 Recommended Operating Conditions
2.2 Power Consumption
3 Functional Overview
3.1 Block Diagram
3.2 Processor
3.3 Power Tree
4 Board Operation
4.1 Getting Started - IDE
4.2 Getting Started - Arduino Web Editor
4.3 Sample Sketches
4.4 Online Resources
4.5 Board Recovery
5 Connector Pinouts
5.1 Analog
5.2 Digital
5.3 ATmega328
6 Mechanical Information
7 Certifications
7.1 Declaration of Conformity CE DoC (EU)
7.2 Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
7.3 Conflict Minerals Declaration
7.4 FCC Caution
8 Company Information
9 Reference Documentation
10 Revision History

Arduino® Nano
4 / 13 Arduino® Nano Modified: 29/06/2022
1 The Board
1.1 Application Examples
Arduino Nano is the first embedded microcontroller in the Nano series with minimum functionalities, designed for
mini projects from the maker community. With a large number of input/output pins gives the advantage of utilizing
several serial communications like UART, SPI and I2C. The hardware is compatible with Arduino IDE, Arduino CLI
and web editor.
Security: The high-performance and low-power capabilities gives the chance to develop security based
applications like access control systems using fingerprint sensors. The flexibility to interface sensors and external
devices using serial communication has improved the scope of utility.
Environmental: The low-power feature of the microcontroller and the power supply options for the board has
enhanced the ability to implement remote IoT projects related to environmental issues.
Robotics: Robotics has always been the favorite area of exploration for the Maker community and with this tiny
embedded hardware you can now create complex and advanced robotic applications.
1.2 Accessories
1.3 Related Products
Arduino Nano 33 BLE
Arduino 33 IoT
Arduino Micro
2 Ratings
2.1 Recommended Operating Conditions
Symbol Description Min Max
Conservative thermal limits for the whole board: -40 °C 85 °C

Arduino® Nano
5 / 13 Arduino® Nano Modified: 29/06/2022
2.2 Power Consumption
Symbol Description Min Typ Max Unit
USB VCC Input supply from USB TBC mW
VIN Input from VIN pad TBC mW
3 Functional Overview
3.1 Block Diagram
Block Diagram of Arduino Nano

Arduino® Nano
6 / 13 Arduino® Nano Modified: 29/06/2022
3.2 Processor
The primary processor in the Arduino Nano v3.3 board is the high-performance and low-power 8-bit ATmega328
microcontroller that runs at a clock frequency of 16 MHz. The ability to interface external devices through serial
communication supported by the chip with UART TTL (5V), I2C (TWI) and SPI. Arduino Nano can be programmed
with Arduino software reducing the entry barriers for new users. Smallest dimension embedded hardware makes it
a perfect choice for breadboard-friendly projects from the maker community.
3.3 Power Tree
Power Tree of Arduino Nano
The Arduino Nano can be powered by either the USB port or alternatively via VIN. The input supply of VIN is
regulated by an LDO so the supply is limited to 5V for the optimal functioning of the board. There is also another
regulator which limits the voltage to 3.3V for powrering the components with low voltage requirements.

Arduino® Nano
7 / 13 Arduino® Nano Modified: 29/06/2022
4 Board Operation
4.1 Getting Started - IDE
If you want to program your Arduino® Nano while offline you need to install the Arduino® Desktop IDE [1] To
connect the Arduino Uno to your computer, you’ll need a Micro-B USB cable. This also provides power to the board,
as indicated by the LED.
4.2 Getting Started - Arduino Web Editor
All Arduino® boards, including this one, work out-of-the-box on the Arduino Web Editor [2], by just installing a
simple plugin. The Arduino Web Editor is hosted online, therefore it will always be up-to-date with the latest
features and support for all boards. Follow [3] to start coding on the browser and upload your sketches onto your
board.
4.3 Sample Sketches
Sample sketches for the Arduino® can be found either in the “Examples” menu in the Arduino® IDE or in the
“Documentation” section of the Arduino website [4]
4.4 Online Resources
Now that you have gone through the basics of what you can do with the board you can explore the endless
possibilities it provides by checking exciting projects on ProjectHub [5], the Arduino® Library Reference [6] and the
online store [7] where you will be able to complement your board with sensors, actuators and more.
4.5 Board Recovery
All Arduino boards have a built-in bootloader which allows flashing the board via USB. In case a sketch locks up the
processor and the board is not reachable anymore via USB it is possible to enter bootloader mode by double-
tapping the reset button right after power up.

Arduino® Nano
8 / 13 Arduino® Nano Modified: 29/06/2022
5 Connector Pinouts
Power Tree of Arduino Nano

Arduino® Nano
9 / 13 Arduino® Nano Modified: 29/06/2022
5.1 Analog
Pin Function Type Description
1 +3V3 Power 5V USB Power
2 A0 Analog Analog input 0 /GPIO
3 A1 Analog Analog input 1 /GPIO
4 A2 Analog Analog input 2 /GPIO
5 A3 Analog Analog input 3 /GPIO
6 A4 Analog Analog input 4 /GPIO
7 A5 Analog Analog input 5 /GPIO
8 A6 Analog Analog input 6 /GPIO
9 A7 Analog Analog input 7 /GPIO
10 +5V Power +5V Power Rail
11 Reset Reset Reset
12 GND Power Ground
12 VIN Power Voltage Input
5.2 Digital
Pin Function Type Description
1 D1/TX1 Digital Digital Input 1 /GPIO
2 D0/RX0 Digital Digital Input 0 /GPIO
3 D2 Digital Digital Input 2 /GPIO
4 D3 Digital Digital Input 3 /GPIO
5 D4 Digital Digital Input 4 /GPIO
6 D5 Digital Digital Input 5 /GPIO
7 D6 Digital Digital Input 6 /GPIO
8 D7 Digital Digital Input 7 /GPIO
9 D8 Digital Digital Input 8 /GPIO
10 D9 Digital Digital Input 9 /GPIO
11 D10 Digital Digital Input 10 /GPIO
12 D11 Digital Digital Input 11 /GPIO
13 D12 Digital Digital Input 12 /GPIO
14 D13 Digital Digital Input 13 /GPIO
15 Reset Reset Reset
16 GND Power Ground

Arduino® Nano
10 / 13 Arduino® Nano Modified: 29/06/2022
5.3 ATmega328
Pin Function Type Description
1 PB0 Internal Serial Wire Debug
2 PB1 Internal Serial Wire Debug
3 PB2 Internal Serial Wire Debug
4 PB3 Internal Serial Wire Debug
5 PB4 Internal Serial Wire Debug
6 PB5 Internal Serial Wire Debug
6 Mechanical Information
Mechanical dimensions of Arduino Nano

Arduino® Nano
11 / 13 Arduino® Nano Modified: 29/06/2022
7 Certifications
7.1 Declaration of Conformity CE DoC (EU)
We declare under our sole responsibility that the products above are in conformity with the essential requirements
of the following EU Directives and therefore qualify for free movement within markets comprising the European
Union (EU) and European Economic Area (EEA).
7.2 Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
Arduino boards are in compliance with RoHS 2 Directive 2011/65/EU of the European Parliament and RoHS 3
Directive 2015/863/EU of the Council of 4 June 2015 on the restriction of the use of certain hazardous substances in
electrical and electronic equipment.
Substance Maximum Limit (ppm)
Lead (Pb) 1000
Cadmium (Cd) 100
Mercury (Hg) 1000
Hexavalent Chromium (Cr6+) 1000
Poly Brominated Biphenyls (PBB) 1000
Poly Brominated Diphenyl ethers (PBDE) 1000
Bis(2-Ethylhexyl} phthalate (DEHP) 1000
Benzyl butyl phthalate (BBP) 1000
Dibutyl phthalate (DBP) 1000
Diisobutyl phthalate (DIBP) 1000
Exemptions : No exemptions are claimed.
Arduino Boards are fully compliant with the related requirements of European Union Regulation (EC) 1907 /2006
concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH). We declare none of
the SVHCs (https://echa.europa.eu/web/guest/candidate-list-table), the Candidate List of Substances of Very High
Concern for authorization currently released by ECHA, is present in all products (and also package) in quantities
totaling in a concentration equal or above 0.1%. To the best of our knowledge, we also declare that our products
do not contain any of the substances listed on the "Authorization List" (Annex XIV of the REACH regulations) and
Substances of Very High Concern (SVHC) in any significant amounts as specified by the Annex XVII of Candidate list
published by ECHA (European Chemical Agency) 1907 /2006/EC.

Arduino® Nano
12 / 13 Arduino® Nano Modified: 29/06/2022
7.3 Conflict Minerals Declaration
As a global supplier of electronic and electrical components, Arduino is aware of our obligations with regards to
laws and regulations regarding Conflict Minerals, specifically the Dodd-Frank Wall Street Reform and Consumer
Protection Act, Section 1502. Arduino does not directly source or process conflict minerals such as Tin, Tantalum,
Tungsten, or Gold. Conflict minerals are contained in our products in the form of solder, or as a component in
metal alloys. As part of our reasonable due diligence Arduino has contacted component suppliers within our supply
chain to verify their continued compliance with the regulations. Based on the information received thus far we
declare that our products contain Conflict Minerals sourced from conflict-free areas.
7.4 FCC Caution
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference
(2) this device must accept any interference received, including interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
2. This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment.
3. This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.
English: User manuals for license-exempt radio apparatus shall contain the following or equivalent notice in a
conspicuous location in the user manual or alternatively on the device or both. This device complies with Industry
Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference
(2) this device must accept any interference, including interference that may cause undesired operation of the
device.
French: Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de
licence. L’exploitation est autorisée aux deux conditions suivantes :
(1) l’ appareil nedoit pas produire de brouillage
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible
d’en compromettre le fonctionnement.
IC SAR Warning:
English This equipment should be installed and operated with minimum distance 20 cm between the radiator and
your body.
French: Lors de l’ installation et de l’ exploitation de ce dispositif, la distance entre le radiateur et le corps est d ’au
moins 20 cm.

Arduino® Nano
13 / 13 Arduino® Nano Modified: 29/06/2022
Important: The operating temperature of the EUT can’t exceed 80℃ and shouldn’t be lower than -20℃.
Hereby, Arduino S.r.l. declares that this product is in compliance with essential requirements and other relevant
provisions of Directive 2014/53/EU. This product is allowed to be used in all EU member states.
8 Company Information
Company name Arduino S.r.l.
Company Address Via Andrea Appiani 25, 20900 MONZA MB, Italy
9 Reference Documentation
Ref Link
Arduino IDE
(Desktop) https://www.arduino.cc/en/Main/Software
Arduino IDE (Cloud) https://create.arduino.cc/editor
Cloud IDE Getting
Started
https://create.arduino.cc/projecthub/Arduino_Genuino/getting-started-with-arduino-
web-editor-4b3e4a
Arduino
Documentation https://docs.arduino.cc/hardware/nano
Project Hub https://create.arduino.cc/projecthub?by=part&part_id=11332&sort=trending
Library Reference https://www.arduino.cc/reference/en/libraries/
Online Store https://store.arduino.cc/
10 Revision History
Date Revision Changes
12/04/2022 1 First Release