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Arduino Leonardo AVR Development Board

Arduino Leonardo AVR Development Board is a microcontroller board based on the Atmel ATmega32u4. It offers 20 digital IOs (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. 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 an HID, such as a mouse or keyboard, in addition to a virtual (CDC) serial / COM port. The Leonardo board 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.
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Atmel ATMEGA32U4-AU
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Atmel 8-bit Microcontrollers - MCU AVR USB 32K FLASH INDUSTRIAL
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Atmel 8-bit Microcontrollers - MCU AVR USB 32K FLASH INDUSTRIAL
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Arduino A000057
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Arduino Development Boards & Kits - AVR ARDUINO LEONARDO WITH HEADERS
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Arduino A000052
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Arduino Development Boards & Kits - AVR ARDUINO LEONARDO W/O HEADERS
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