A000066

A000066 Datasheet

Code A000066

Part	Datasheet
A000066	A000066 (pdf)

PDF Datasheet Preview
Code A000066 The UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family. • Arduino Uno is a microcontroller board based on the ATmega328P datasheet . It has 14 digital input/output pins of which 6 can be used as PWM outputs , 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with a adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again. "Uno" means one in Italian and was chosen to mark the release of Arduino Software IDE The Uno board and version of Arduino Software IDE were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform for an extensive list of current, past or outdated boards see the Arduino index of boards. You can find here your board warranty informations. Getting Started You can find in the Getting Started section all the information you need to configure your board, use the Arduino Software IDE , and start tinker with coding and electronics. TECH SPECS Microcontroller ATmega328P Operating Voltage Input Voltage recommended Input Voltage limit Digital I/O Pins 14 of which 6 provide PWM output PWM Digital I/O Pins Analog Input Pins DC Current per I/O Pin 20 mA DC Current for 3.3V Pin 50 mA Flash Memory SRAM EEPROM Clock Speed LED_BUILTIN Length Width Weight 32 KB ATmega328P of which KB used by bootloader 2 KB ATmega328P 1 KB ATmega328P 16 MHz 13 mm 25 g • OSH Schematics Arduino Uno is hardware! You can build your own board using the following files: EAGLE FILES IN .ZIP SCHEMATICS IN .PDF BOARD SIZE IN .DXF Programming The Arduino Uno can be programmed with the Arduino Software IDE . Select "Arduino/Genuino Uno from the Tools > Board menu according to the microcontroller on your board . For details, see the reference and tutorials. The ATmega328 on the Arduino Uno comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol reference, C header files . You can also bypass the bootloader and program the microcontroller through the ICSP Serial Programming header using Arduino ISP or similar see these instructions for details. You can then use Atmel's FLIP software Windows or the DFU programmer Mac OS X and Linux to load a new firmware. Or you can use the ISP header with an external programmer overwriting the DFU bootloader . See this tutorial for more information. Warnings The Arduino Uno has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed. Differences with other boards The Uno differs from all preceding boards in that it does not use the FTDI serial driver chip. Instead, it features the Atmega16U2 Atmega8U2 up to version R2 programmed as a converter. Power The Arduino Uno board can be powered via the USB connection or with an external power supply. The power source is selected automatically. External power can come either from an adapter or battery. The adapter can be connected by plugging a 2.1mm plug into the board's power jack. Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector. The board can operate on an external supply from 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may become unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts. The power pins are as follows: • Vin. The input voltage to the Arduino/Genuino board when it's using an external power source as opposed to 5 volts from the USB connection or other regulated power source . You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.

PDF Datasheet Preview

Code A000066

The UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family.
• Arduino Uno is a microcontroller board based on the ATmega328P datasheet . It has 14 digital input/output pins of which 6 can be used as PWM outputs , 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with a adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.
"Uno" means one in Italian and was chosen to mark the release of Arduino Software IDE The Uno board and version of Arduino Software IDE were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform for an extensive list of current, past or outdated boards see the Arduino index of boards.

You can find here your board warranty informations.

Getting Started

You can find in the Getting Started section all the information you need to configure your board, use the Arduino Software IDE , and start tinker with coding and electronics.

TECH SPECS

Microcontroller

ATmega328P

Operating Voltage

Input Voltage recommended

Input Voltage limit

Digital I/O Pins
14 of which 6 provide PWM output

PWM Digital I/O Pins

Analog Input Pins

DC Current per I/O Pin
20 mA

DC Current for 3.3V Pin
50 mA

Flash Memory SRAM EEPROM Clock Speed LED_BUILTIN Length Width Weight
32 KB ATmega328P of which KB used by bootloader 2 KB ATmega328P 1 KB ATmega328P 16 MHz 13 mm 25 g
• OSH Schematics

Arduino Uno is hardware! You can build your own board using the following files:

EAGLE FILES IN .ZIP SCHEMATICS IN .PDF BOARD SIZE IN .DXF

Programming

The Arduino Uno can be programmed with the Arduino Software IDE . Select "Arduino/Genuino Uno from the Tools > Board menu according to the microcontroller on your board . For details, see the reference and tutorials.

The ATmega328 on the Arduino Uno comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol reference, C header files .

You can also bypass the bootloader and program the microcontroller through the ICSP Serial Programming header using Arduino ISP or similar see these instructions for details.

You can then use Atmel's FLIP software Windows or the DFU programmer Mac OS X and Linux to load a new firmware. Or you can use the ISP header with an external programmer overwriting the DFU bootloader . See this tutorial for more information.

Warnings

The Arduino Uno has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.

Differences with other boards

The Uno differs from all preceding boards in that it does not use the FTDI serial driver chip. Instead, it features the Atmega16U2 Atmega8U2 up to version R2 programmed as a converter.

Power

The Arduino Uno board can be powered via the USB connection or with an external power supply. The power source is selected automatically.

External power can come either from an adapter or battery. The adapter can be connected by plugging a 2.1mm plug into the board's power jack. Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector.

The board can operate on an external supply from 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may become unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

The power pins are as follows:
• Vin. The input voltage to the Arduino/Genuino board when it's using an external power source as opposed to 5 volts from the USB connection or other regulated power source . You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived A000066 Datasheet file may be downloaded here without warranties.

Datasheet ID: A000066 518299