Overview

The Arduino Micro is a microcontroller board based on the ATmega32U4, developed in conjunction with Adafruit. It has 24 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 connector, an in-circuit system programming (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 (not included) to get started. The headers are arranged with a 0.1″ spacing for compatibility with standard solderless breadboards and perfboards and connectors that use a 0.1″ grid.

• Dimensions: 1.9" x 0.7" / 48mm x 18mm

• Weight: 6.5g

• Microcontroller: ATmega32u4

• Operating Voltage: 5V

• Input Voltage (recommended): 7-12V

• Input Voltage (limits): 6-20V

• Digital I/O Pins: 20

• PWM Channels: 7

• Analog Input Channels: 12

• DC Current per I/O Pin: 40 mA

• DC Current for 3.3V Pin: 50 mA

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

• SRAM: 2.5 KB (ATmega32u4)

• EEPROM: 1 KB (ATmega32u4)

• Clock Speed: 16 MHz