Arduino Micro

Arduino Micro is the smallest board of the family, easy to integrate it in everyday objects to make them interactive.The Micro is based on the ATmega32U4 microcontroller featuring a built-in USB which makes the Micro recognisable as a mouse or keyboard.The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. 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, an ICSP header, and a reset button.

It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.

The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM portMicrocontrollerATmega32U4Operating Voltage5VInput Voltage (recommended)7-12VInput Voltage (limit)6-20VDigital I/O Pins20PWM Channels7Analog Input Channels12DC Current per I/O Pin20 mADC Current for 3.3V Pin50 mAFlash Memory32 KB (ATmega32U4) of which 4 KB used by bootloaderSRAM2.5 KB (ATmega32U4)EEPROM1 KB (ATmega32U4)Clock Speed16 MHzLED_BUILTIN13Length48 mmWidth18 mmWeight13 g .