Arduino Micro

The Micro is a microcontroller board based on the ATmega32U4 (datasheet), developed in conjunction with Adafruit. It has 20 digital input/output pins

Arduino Micro Pinout and Specification

Pro Micro: Arduino Pinout - tinkerBOY

Arduino Micro Specifications/Functions

Arduino Micro Quick Start Guide

OSOYOO Pro Micro 5V/16MHz Module Board with 2 Row pin

Using ESP8266 WiFi Module with Arduino Micro

File:Arduino Micro.jpg - Wikipedia

Arduino Compatible Pro Micro

Ardunio Micro Joystick Card

Arduino Micro, ATmega32U4 MCU - With USB lead

Arduino Pro Micro: Reset & Restore Bootloader - ShellHacks

Arduino Micro, 3D CAD Model Library