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A000066 Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital io pins, 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. Instead, it features the ATmega16U2 programmed as a USB to serial converter. Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode. Revision 3 of the 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.
Feature & Benefits:
Microcontroller Atmel ATmega168
Operating voltage is 5V
Maximum supply voltage 6 to 20V
Digital I/O pins 14 (of which 6 provide PWM output)
DC current per I/O pin 40 mA
DC current for 3.3V pin 50 mA
Flash memory16KB of which 2KB is used by Bootloader
SRAM 2KB, EEPROM 1KB
Clock speed 16MHz
Can be powered via the USB connection or with an external power supply
Applications: Communications & Networking
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