Arduino Pro Micro ATmega32U4 5V/16MHz Module

DESCRIPTION
The Micro is a microcontroller board based on the ATmega32U4, developed in conjunction with Adafruit. The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. 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. 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 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.

TECHNICAL SPECIFICATIONS

ATmega32U4

Built in USB 2.0

Absolute maximum VCC: 6V

Maximum current for chip: 200mA

Maximum current per pin: 40mA

Recommended current per pin: 20mA

8-bit Atmel AVR

Flash Program Memory: 32kB

EEPROM: 1kB

Internal SRAM 2.5kB

ADC: 10-bit

PWM: 8bit

High Speed PWM with programmable

Resolution from 2-11 bits

LEDS

Power: Red

RX: Yellow

TX: Green

SERIAL

Use Serial for the USB connection

Use Serial1 for the hardware serial connection

POWER

RAW: 6V-16V

VCC: 5V at 500mA

USB

HID enabled

VID: 0x1B4F

PID: 0x9205 (boot loader); 0x9206 (sketch)