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 Flash Memory: 32 KB of which 0.5 KB used by bootloader DC Current per I/O Pin: 40 mA DC Current for 3.3V Pin: 50 mA SRAM: 2 KB (ATmega328) EEPROM: 1 KB (ATmega328) Clock Speed: 16 MHz
