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Arduino Uno

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The Arduino Uno is a microcontroller board based on the ATmega328.
You can find the ATmega328 datasheet here .
It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, 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 AC-to-DC adapter or battery to get started.
The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter.
"Uno" means one in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and version 1.0 will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform.

How to use your board

Schematic & Reference Design

Arduino is an open-source electronics platform and here we provide Schematics and Reference files.

Note: The Arduino reference design can use an Atmega8, 168, or 328, Current models use an ATmega328, but an Atmega8 is shown in the schematic for reference. The pin configuration is identical on all three processors.

See also...

Newest Forum Posts

  1. Project 1 incomplete! by charnerart, 2016-05-04 04:56
  2. Error compiling by cole444, 2016-05-01 10:02
  3. Just Got an Uno...Need help with Linux Lite Setup by mess.command, 2016-04-14 04:01
  4. Complete Beginner Having "Issues" by Ahansk, 2016-03-29 17:49
  5. Arduino Uno SMS Sending issue by sadigtech, 2016-03-28 17:33