Arduino Leonardo

DESCRIPTION
The Arduino Leonardo is a microcontroller board based on the ATmega32u4 (datasheet). It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port. It also has other implications for the behavior of the board; these are detailed on the Getting started with the Arduino Leonardo.

TECHNICAL DATA

• 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
• Lengh:68.6 mm
• Width:53.3 mm
• Weight:20 g