Original Arduino Leonardo without Headers

The latest addition to the Arduino family is here! The Arduino Leonardo is a microcontroller board based on the exciting USB-enabled ATmega32u4 (datasheet). This chip has about the same amount of flash, RAM, and capability as the ATmega328 found in the UNO. 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 spot for a 2.1mm power jack, an ICSP header breakout, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable to get started. This version of the Leonardo does not come with any headers attached for an ultra-thin, light-weight Arduino! The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary chip (such as an FTDI friend, FTDI cable or the USB/Serial converter on the UNO). On one hand this means that sketches on the Leo are a little bigger because it’s also handling USB interaction. On the other hand, it allows the Leonardo to appear to a connected computer as a mouse and/or 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. This board is only supported in the latest Arduino IDE 1.0.1 so you will also need to update the IDE. Features : ATmega32U4 Microcontroller Clock frequency: 16MHz Flash memory: 32KB SRAM: 2.5KB EEPROM: 1KB Input Voltage: 7-12V 20 Digital I/O Pins 7 PWM Channels 12 ADCs 16MHz Clock Speed 32 KB Flash Memory micro USB connection Specifications: Model Type: Leonardo Microcontroller Chip: ATmega32u4 Operating Voltage (VDC): 5 Input Voltage(Recommended): 7V to 12V Input Voltage (limit): 6V-20V Analog I/O Pins: 12 Digital I/O Pins: 20 PWM Digital I/O Pins: 7 Clock Speed: 16 MHz Flash Memory: 32 KB (ATmega32u4) of which 4 KB used by bootloader SRAM: 2.5 KB (ATmega32u4) EEPROM: 1 KB (ATmega328) Weight (gm): 20 Length (mm): 68.6 Width (mm): 53.3 Package Includes: 1 x Arduino Leonardo without Headers Useful Links: Getting Started with Arduino Arduino Software (IDE)