ARDUINO UNO REV.3.0

The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U programmed as a USB-to-serial converter. Features Digital I/O pins: 14 (of which 6 provide PWM output) Analogue input pins: 6 Contains: 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button Specifications Power supply: 6-20 V max. (adapter not included) Microcontroller: ATmega328 Digital I/O pins: 14 (of which 6 provide PWM output) DC current per I/O pin: 40 mA DC current for 3.3 V pin: 50 mA Analogue input pins: 6 Flash memory: 32 kB (ATmega328) of which 0.5 kB used by bootloader SRAM: 2 kB (ATmega328) EEPROM: 1 kB (ATmega328) Clock speed: 16 MHz