A microcontroller board based on the ATmega328P, the Arduino Uno Rev 3 has 14 digital input / output pins, 6 analog inputs a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button.
The Arduino Uno Rev 3 comes fully loaded
It is small
The Arduino Uno Rev 3 has a length of 68.6mm and a width of 53.4mm. Despite all of the aforementioned pins, outputs, and components, it weighs just 25g.
The word “Uno” means “one” in Italian. It was selected for the name of this board to mark the release of Arduino Software (IDE) 1.0. It’s the first in a series of Arduino boards, and the reference model for the Arduino platform.
The “Uno” has special meaning
It's small
3 fast facts about the Arduino Uno Rev 3
