1. The Arduino Uno Rev3 Is A Micro Controller Board Based On The Atmega328 (datasheet). 2. 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. 3. 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. 4. The Uno Differs From All Preceding Boards In That It Does Not Use The Ftdi USB-to-serial Driver Chip. Instead, It Features The Atmega8u2 Programmed As A USB-to-serial Converter. "uno" Means One In Italian And Is Named To Mark The Upcoming Release Of Arduino 1. 0. 5. The Uno And Version 1. 0 Will Be The Reference Versions Of Arduno, Moving Forward. The Uno Is The Latest In A Series Of USB Arduino Boards, And The Reference Model For The Arduino PLAtform. 6. Microcontroller Atmega328 Operating Voltage 5v Input Voltage (recommended) 7-12V Input Voltage (limits) 6-20v 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 Of Which 0. 5 Kb Used By Boot Loader Sram 2 Kb Eeprom 1 Kb Clock Speed 16 Mhz.
