Description:
The Arduino Leonardo is a microcontroller board based on the ATmega32u4. This Arduino board has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analogue inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. Arduino Leonardo contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.
SPECIFICATION:
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