ARDUINO UNO REV3

Arduino Uno是一款基于ATmega328的微控制器板。它有14个数字输入/输出引脚（其中6个可用作PWM输出）、6个模拟输入、1个16 MHz陶瓷谐振器、1个USB连接、1个电源插座、1个ICSP头和1个复位按钮。它包含了支持微控制器所需的一切；只需通过USB电缆将其连至计算机或者通过AC-DC适配器或电池为其供电即可开始。A000066

**Development Kits and Tool Detail**

**Description:**

The Uno is a microcontroller board based on the ATmega328. 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

**Features:**

    - Microcontroller: ATmega328

    - Operating Voltage: 5V

    - Input Voltage recommended: 7-12V

    - Input Voltage limits: 6-20V

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

    - Analog Input Pins: 6

    - DC Current per I/O Pin: 40 mA

    - DC Current for 3.3V Pin: 50 mA

    - Flash Memory: 32 KB ATmega328 of which 0.5 KB used by bootloader

    - SRAM: 2 KB ATmega328

    - EEPROM: 1 KB ATmega328

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**Additional Information**

Datasheet

DFU Mode

Reference Design

Schematic

Arduino Software download