Arduino Micro - Atmega32U4

Arduino Micro - Atmega32U4

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  • Product Code: ARDUINO-MICRO
  • Warranty Period: 12 months
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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.

Specification:

  • 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.

Getting Started:

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.

Resources:

Packing List:

  • 1 x Arduino Micro - Atmega32U4

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Tags: Atmega32U4, Arduino