![]() The Uno will be the latest in a series of USB Arduino boards, along with the reference model for the Arduino platform for a comparison with previous versions, see the index of Arduino boards. The Uno and version 1.0 is going to be the reference versions of Arduno, moving forward. ![]() “UNO” means one in Italian and is named to mark the upcoming release of Arduino 1.0. Instead, it functions the Atmega8U2 programmed as a USB-to-serial converter. The UNO differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. If you look carefully, the crystal and capacitors form one component in the schematic. That’s a 16MHz +/-0.5 initial tolerance part with 15pF load caps. The ArduiNIX shield uses digital data pins 2,3,4,5,6,7,8,9,10,11,12,13 on the Arduino Nixie Tubes are cool retro looking decimal digit displays useful for many modern DIY projects like the venerable Nixie tube digital clock Frank clock (from Petes Nixie kits) uses an almost identical schematic, but a different set of values for R2-R3- C4 (used. It contains every little thing needed to support the microcontroller just connect it to a laptop or computer having a USB cable or power it with a AC-to-DC adapter or battery to obtain began. The part number on the original schematics reportedly refers to a Murata CSTCE16M0V53-R0, though some clones use a crystal and external load capacitors. It has 14 digital input/output pins (of which 6 may be employed as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, along with a reset button. The Arduino Uno is really a microcontroller board based on the ATmega328. Here the Arduino UNO schematic diagram (click to enlarge):
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