Arduino Leonardo with Headers

Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux). The Leonardo is Arduino’s first development board to use one microcontroller with built-in USB. Using the ATmega32U4 as its sole microcontroller allows it to be cheaper and simpler. Also, because the 32U4 is handling the USB directly, code libraries are available which allow the board to emulate a computer keyboard, mouse, and more using the USB-HID protocol! 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. Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Buying Guide!Features: ATmega32u4 Microcontroller Input Voltage: 7-12V 20 Digital I/O Pins 7 PWM Channels 12 ADCs 16MHz Clock Speed 32 KB Flash Memory Documents: Schematic Eagle Files Product Page Arduino Site Arduino Forum Brand: Sparkfun Brand Part Number: DEV-11286 Our Part Number: h5743 Accessories Arduino Pro Mini 328 - 5V/16MHz Arduino Uno R3 Arduino Mega 2560 R3 Arduino Pro Mini 328 - 3.3V/8MHz Arduino Due SparkFun XBee Wireless Kit Arduino Stackable Header Kit - R3 USB Micro-B Cable - 6' SparkFun 16 Output I/O Expander Breakout - SX1509 Arduino 101 SparkFun Cerberus USB Cable - 6ft Teensy++ 2.0 Heating Pad - 5x10cm