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Arduino Micro

02-00010320
A000053
CompanyArduino Part NumberA000053
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Arduino
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The Arduino Micro is a microcontroller board based on the ATmega32u4, 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 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. It also has other implications for the behavior of the board; these are detailed on the getting started page.

The Micro can be powered via the micro USB connection or with an external power supply. The power source is selected automatically. External (non-USB) power can come either from a DC power supply or battery. Leads from a battery or DC power supply can be connected to the Gnd and Vin pins. The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may become unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

The ATmega32U4 has 32 KB (with 4 KB used for the bootloader). It also has 2.5 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).

NOTES

  • This is the original board Arduino Micro.
  • Only the Micro board is included in the package, you can find a microUSB cable in our catalog and everything else you need for your project. This version of the Arduino Micro (A000053) comes with pre soldered pins, if you want to solder your own pins you can see the A000093 version.
  • Controller architecture: AVR
  • Dimensions: 48 x 18mm
  • Weight: 13g

  
Company
Arduino
Gross Weight
0.021kg
Family
Arduino Classic
Series
Arduino Making
Microcontroller
ATmega32u4
Operating Voltage
5V
Input Voltage
7-12V
Input Voltage (limits)
6-20V
Digital I/O Pins
20
Analog Input Channels
12
PWM Channels
7
DC Current per I/O Pin
20 mA
DC Current for 3.3V Pin
50mA
Flash Memory
32 KB
SRAM
2.5 KB (ATmega32u4)
EEPROM
1 KB (ATmega32u4)
Clock Speed
16 MHz
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