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<p>The Arduino Uno is a microcontroller board based on the ATmega328. 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.<br />
&nbsp;The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U programmed as a USB-to-serial converter.</p>

<p>Características<br />
•digital I/O pins: 14 (of which 6 provide PWM output)<br />
•analogue input pins: 6<br />
•contains: 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button</p>

<p>Especificações<br />
•power supply: 6-20 V max. (adapter not included)<br />
•microcontroller: ATmega328<br />
•digital I/O pins: 14 (of which 6 provide PWM output)<br />
•DC current per I/O pin: 40 mA<br />
•DC current for 3.3 V pin: 50 mA<br />
•analogue input pins: 6<br />
•flash memory: 32 kB (ATmega328) of which 0.5 kB used by bootloader<br />
•SRAM: 2 kB (ATmega328)<br />
•EEPROM: 1 kB (ATmega328)<br />
•clock speed: 16 MHz</p>