The Arduino Uno Rev3 SMD 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 (CSTCE16M0V53-R0), 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.
The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.
UNO R3 SMD is the open source Embedded Development board based on Atmega328 SMD Package Microcontroller. Because Atmel is moving more and more of their production capacity to surface mount ICs, the DIP packaged AT mega is becoming more and more difficult to get.
|Dimensions||6.86 × 5.34 cm|
|Operating Voltage (VDC)||
7 to 12 V
|Input Voltage (limit)||
|Analog I/O Pins||
|Digital I/O Pins||
14 (of which 6 provide PWM output)
|PWM Digital I/O Pins||