Arduino Nano

Specifications:

Micro-Controller : ATmega328
Operating Voltage : 5V DC
Input Voltage : 7-12V
Flash Memory : 32KB
SRAM : 2KB
EEPROM : 1KB
Clock Speed : 16MHz
Digital I/O Pins : 22 (6 of which are PWM)
Analog Input Pins : 8
Analog Output Pins : 6 (PWM)