Features:

• Microcontroller: ATmega328
• Operating voltage: 5 V
• Supply voltage (recommended): 7-12 V
• Supply voltage (limits): 6-20 V
• Number of digital I/O pins: 14
• Number of PWM pins: 6
• Number of analog input pins: 6
• Max DC current for each I/O pins: 40 mA
• DC current for 3.3 V out: 50 mA
• Max DC current for 3.3 V pin: 1 A (if supplied with an external adapter)
• Flash memory: 32 kB (ATmega328, 0.5 kB is used by bootloader)
• SRAM: 2 kB (ATmega328)
• EEPROM: 1kB (ATmega328)
• Clock speed: 16 MHz
• Length: 68.6 mm
• Width: 53.4 mm
• Weight: 25 gr