Arduino Leonardo (Rev3b)

5 2013-04-03 althaus 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 page. Arduino Leonardo (Rev3b) http://arduino.cc/en/Main/ArduinoBoardLeonardo arduino leonardo ATmega32u4 microcontroller board (arduino) Arduino Leonardo (Rev3) D0/RX

D1/TX

D2/SDA

D3 PWM/SCL

D4/A6

D5 PWM

D6 PWM/A7

reserved

IOREF

RESET

3V3

GND

VIN

D8/A8

D9 PWM/A9

D10 PWM/A10

D11 PWM

D12/A11

D13 PWM

GND

AREF

SDA

SCL