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The Nano is a microcontroller board based on the ATmega328 (datasheet), developed in conjunction with Adafruit. It has 22 digital input/output pins (of which 6 can be used as PWM outputs and 8 as analog inputs), a 16 MHz crystal oscillator, a mini 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 mini-B 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 ATmega328 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.
USB Voltage Input
5.0V,5.0V
Supported USB Standards
USB 2.0
USB Port Types
USB Mini Type B
Number of USB ports
1.0 ports
USB Interface Functions
USB Charging,Programming and Serial Data
CPU
ATmega328
RAM
2.0 KB
Flash Memory
32.0 KB
RAM Type
SRAM
Microcontroller
ATmega32U4
Program memory
32.0 KB
Length
48.0 mm
Width
18.0 mm
Weight
13.0 g
Contains Button Cell
false
Packaged Dimensions
8.2cm(Length) x 6.1cm(Width) x 2.7cm(Height)