The Arduino Micro comes with a built-in USB which makes the Micro recognizable 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 analogue 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 port.
Find inspiration for your projects from the tutorial platform Project Hub.
You can find in the Getting started with the Arduino Micro section all the information you need to configure your board, use the Arduino Software (IDE), and start tinkering with coding and electronics.
From the Tutorials section, you can find examples from libraries and built-in sketches as well as other useful information to expand your knowledge of the Arduino hardware and software.
- Development Environments
- Getting Started
- Project Hub
- Arduino Micro Pinout Diagram
|Input Voltage (recommended)
|Input Voltage (limit)
|Digital I/O Pins
|Analog Input Channels
|DC Current per I/O Pin
|DC Current for 3.3V Pin
|32 KB (ATmega32U4) of which 4 KB used by bootloader
|2.5 KB (ATmega32U4)
|1 KB (ATmega32U4)