•Microcontroller: ATmega328
•CH340 for USB/Serial Interface
•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: 16MHz