Arduino Micro

The original Arduino Micro is a microcontroller board developed in collaboration with Adafruit and based on the ATmega32U4. It has 20 digital input/output pins, 7 of which can be used as PWM outputs and 12 as analog inputs. It also has a 16 MHz crystal oscillator, a micro USB connection, and a reset button. Everything needed to support the microcontroller is already included, so you can simply connect with a computer over a micro USB cable. It is small enough to be placed on a breadboard and similar to the Arduino Leonardo as it has integrated USB communication and appears as a mouse and keyboard as well as a virtual serial/COM port to a connected computer. 

Documentation: 

• Arduino IDE Download
• Documentation on Arduino Micro 

Pinout Arduino Micro: 

Technical Details: 

• Manufacturer: Arduino 
• Manufacturer SKU: A000053 
• Microcontroller: ATmega32U4 
• ATmega32U4 Flash Memory: 32 KB (4 KB used by the bootloader) 
• ATmega32U4 SRAM: 2.5 KB 
• ATmega32U4 EEPROM: 1 KB 
• Clock Speed: 16 MHz (ATmega32U4) 
• Operating Voltage: 5V 
• Input Voltage (recommended): 7-12V 
• DC Current per I/O Pin: 20 mA 
• DC Current for 3.3V Pin: 50 mA 
• Serial Communication Interfaces: 1x UART, 1x SPI, 1x I2C 
• Digital I/O Pins: 20 
• LED_BUILTIN: Pin 13 
• PWM Channels: 7 
• Analog Input Channels: 12 
• USB: Micro USB 
• Dimensions: 48 x 18mm 
• Weight: 13g 

Package Contents:

• 1x Arduino Micro