Overview

The LilyPad Arduino USB is a microcontroller board based on the ATmega32u4. It has 9 digital input/output pins (of which 4 can be used as PWM outputs and 4 as analog inputs), an 8 MHz resonator, a micro USB connection, a JST connector for a 3.7V LiPo battery, 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 battery to get started.

The LilyPad Arduino USB differs from previous LilyPad boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a separate USB-to-serial adapter. This allows the LilyPad Arduino USB 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.

Summary

• Microcontroller : ATmega32u4

• Operating Voltage : 3.3V

• Input Voltage (recommended) : 3.8V ~ 5V

• Digital I/O Pins : 9

• PWM Channels : 4

• Analog Input Channels : 4

• DC Current per I/O Pin : 40 mA

• Flash Memory : 32 KB (ATmega32u4) of which 4 KB used by bootloader

• SRAM : 2.5 KB (ATmega32u4)

• EEPROM : 1 KB (ATmega32u4)

• Clock Speed : 8 MHz

Details

For details, visit LilyPad Arduino USB page.

Resource

1  Visit Arduino Official Site.
2  Learn Arduino - Getting Started.
3  Download Arduino Software, it is free, open source, and available for Windows, Mac OS, and Linux.
4  The official Arduino multi-lingual forum is the place to start with questions ...