Microcontroller: ATmega328
Operating Voltage: 5V
Input Voltage: 7-9 V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 8 (of which 4 are broken out onto pins)
DC Current per I/O Pin: 40 mA
Flash Memory: 32 KB (of which 2 KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 16 MHz
Length: 30 mm
Width: 18 mm