Summary - Microcontroller ATmega32u4 - Operating Voltage 5V - Input Voltage (recommended) 7-12V - Input Voltage (limits) 6-20V - Digital I/O Pins 20 - PWM Channels 7 - Analog Input Channels 12 - DC Current per I/O Pin 40 mA - DC Current for 3.3V Pin 50 mA - Flash Memory 32 KB (ATmega32u4) of which 4 KB used by bootloader - SRAM 2.5 KB (ATmega32u4) - EEPROM 1 KB (ATmega32u4) - Clock Speed 16 MHz Kelengkapan : - Board Arduino Leonardo - Kabel USB