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 (discontinued) 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. It also has other implications for the behavior of the board; these are detailed on the getting started page.
- Microcontroller: ATmega32U4
- Operating Voltage: 5V
- Input Voltage (recommended): 7-12V
- Input Voltage (limit): 6-20V
- Digital I/O Pins: 20
- PWM Channels: 7
- Analog Input Channels: 12
- DC Current per I/O Pin: 20 mA
- DC Current for 3.3V Pin: 50mA
- 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
- LED_BUILTIN: 13
- Length: 48 mm
- Width: 18 mm
- Weight: 13 g
Download the full pinout diagram as PDF here.
You can. find in the Getting Started section all the information you need to configure your board, use the Arduino Software (IDE), and start tinker with coding and electronics.
- On the Software on the Arduino Forum
- On Projects on the Arduino Forum
- On the Product itself through our Customer Support
- 1 x Arduino Micro - Atmega32U4