Product Name: Lilypad USB Atmega32u4 Board Module Replace Atmega328p for Arduino Model NO.: FUT6023 Dielectric: SIC Trademark: FUT Transport Package: Anti-Static Bag Specification: 12g Origin: China HS Code: 8528511000 Product Description 1.This module is a microcontroller board based on the ATmega32u4. It has 9digital input/output pins (of which 4 can be used as PWM outputs and 4 asanalog inputs), an 8 MHz resonator, a micro USB connection, a connector for a3.7V LiPo battery, and a reset button. It contains everything needed to supportthe microcontroller; simply connect it to a computer with a USB cable or power itwith a battery to get started.It differs from previous LilyPad boards in that theATmega32u4 has built-in USB communication, eliminating the need for aseparate USB-to-serial adapter.2.Microcontroller ATmega32u4 Operating Voltage 3.3V Input Voltage 3.8V to5V Digital I/O Pins 9 PWM Channels 4 Analog Input Channels 4 DC Current perI/O Pin 40 mA Flash Memory 32 KB (ATmega32u4) of which 4 KB used bybootloader SRAM 2.5 KB (ATmega32u4) EEPROM 1 KB (ATmega32u4) ClockSpeed 8 MHz.