Leonardo R3 + Micro USB Cable- ATmega32u4 microcontroller,- Operating voltage 5V,- Power (recommended) 7-12V,- Digital pins I / O 20 (of which 7 can be used as PWM outputs),- Analog input pins 12,- DC current through I / O Pin 40 mA,- DC current for pin 3.3V 50 mA,- Flash memory 32 KB (of whic..