Arduino Micro - Atmega32U4

Arduino Micro - Atmega32U4

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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