Arduino LilyPad USB ATmega 328 View larger The picture may differ from the original

Arduino LilyPad USB ATmega 32U4



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19,50 €

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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.
Technical specs
Operating Voltage3.3V
Input Voltage3.8V-5V
Digital I/O Pins9
PWM Channels4
Analog Input Channels4
DC Current per I/O Pin40 mA
Flash Memory32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM2.5 KB (ATmega32u4)
EEPROM1 KB (ATmega32u4)
Clock Speed8 MHz
Physical Characteristics
The LilyPad Arduino USB is a circle, approximately 50mm (2") in diameter. The Micro USB connector extends slightly beyond this diameter. The board itself is .8mm (1/32") thick (approximately 6.5mm (1/4") including components, the tallest of which is the JST battery connector).
The LilyPad Arduino USB can be programmed with the Arduino Arduino Software (IDE). Select "LilyPad Arduino USB" from the Tools > Board menu (according to the microcontroller on your board). For details, see the reference and tutorials.
The ATmega32U4 on the LilyPad Arduino USB comes preburned with bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the AVR109 protocol.
You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header. While the holes are too small to insert pins into, you can insert male header pins into the ISP connector on your programmer and press them against the ICSP header on the board (from above).


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