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  • Arduino Uno R3
    • i i
    • images/l/Geeetech_20151205000616_1.jpg images/l/Geeetech_20151205000616_1.jpg
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Arduino Uno R3
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SKU:700-001-0456

Shipping Weight:120g

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The Arduino Uno is a micro-controller 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 micro-controller; 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.

This Uno R3 (Revision 3 ) has the following new features:

1.0 pin-out: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible with both the board that uses the AVR, which operates with 5V and with the Arduino Due that operates with 3.3V. The second one is a not connected pin, that is reserved for future purposes.

Stronger RESET circuit.

Atmega 16U2 replace the 8U2.

"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.

Specifications: 

Micro-controller: 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 boot-loader

SRAM:2 KB (ATmega328)

EEPROM:1 KB (ATmega328)

Clock Speed:16 MHz

Length:68.6 mm

Width:53.4 mm

Weight:25 g

 

Schematic & Reference Design

EAGLE files: arduino-uno-Rev3-reference-design.zip (NOTE: works with Eagle 6.0 and newer)

Schematic: arduino-uno-Rev3-schematic.pdf

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.

1 pcs arduino uno r3

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  • Ben Anthony | 02/09/2015

    It's really good! I bought it to use as a test mule for my new designs, and have become hooked. Seriously, this thing is more useful than duct tape and WD40.