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Original Arduino Uno Rev3 - Development Board

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  • Original Arduino Uno Rev3 - Development Board

    The Arduino UNO Rev3 is the absolute best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the Arduino UNO is the most robust board you can start playing with. The Arduino UNO is the most used and documented board of the whole Arduino family.

    The Arduino Uno Rev3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analogue 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 an AC-to-DC adapter or battery to get started.

    Revision 3 of the Arduino Uno board has the following new features:

    • 1.0 pinout: 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.

    Specifications

    Microcontroller ATmega328P
    Operating Voltage 5V
    Input Voltage (recommended) 7-12V
    Input Voltage (limit) 6-20V
    Digital I/O Pins 14 (of which 6 provide PWM output)
    PWM Digital I/O Pins 6
    Analog Input Pins 6
    DC Current per I/O Pin 20 mA
    DC Current for 3.3V Pin 50 mA
    Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader
    SRAM 2 KB (ATmega328P)
    EEPROM 1 KB (ATmega328P)
    Clock Speed 16 MHz
    LED_BUILTIN 13
    Length 68.6 mm
    Width 53.4 mm
    Weight 25 g

     

     


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