Arduino Uno R3 Development Board ATmega328P with USB Cable

Description

The Arduino 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 crystal oscillator, 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.

Additional features coming with the R3 version are:

ATmega16U2 instead 8U2 as USB-to-Serial converter.

1.0 pinout: added SDA and SCL pins for TWI communication placed 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 and the second one is a not connected pin, that is reserved for future purposes.

stronger RESET circuit.

Technical Specifications:

Microcontroller         ATmega328

Operating Voltage   5V

Supply Voltage (recommended)               7-12V

Maximum supply voltage (not recommended)      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)

Clock Speed               16 MHz

Package included:
1 x Arduino Uno R3 Development Board ATmega328P with USB Cable