Arduino Uno R3,

Description

The Arduino Uno 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, 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 a AC-to-DC adapter or battery to get started.

• 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 (ATmega328) of which 0.5 KB used by bootloader
• SRAM    2 KB (ATmega328)
• EEPROM    1 KB (ATmega328)
• Clock Speed    16 MHz