Arduino Leonardo

Board ATmega32u4 R3 [Compatible Arduino Leonardo] is first development board to use one microcontroller with built-in USB. Using the ATmega32U4 as its unique microcontroller allows it to be cheaper and simpler. In addition, because the 32U4 is handling the USB directly, code libraries are available which allow the board to emulate to 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), at 16 MHz crystal oscillator, To micro USB connection, to power jack, an ICSP header, and to reset button. It contains everything needed to support the microcontroller; simply connect it to to computer with to USB cord or power it with to AC-to-DC adapter or battery to get started. eatures: ATmega32u4 MicrocontrollerInput Voltage: 7-12V20 Digital I/OR Pins7 PWM Channels12 ADCs16MHz Clock Speed32 KB Flashlight Memory