# Arduino Pro Micro (Component) ## Description 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 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. ## Component Details - **Owner:** teaching-tomorrow - **Created:** 10/14/2024 - **Last Updated:** 10/20/2024 - **Visibility:** Public - **Used in:** 161 projects - **Forks:** 3 - **Mount Type:** Cable - **Package / Case Code:** TO - **Pin Count:** 24 ## Pins | Pin | Name | Type | |-----|------|------| | - | 5V Power (DC in/out) | | | - | 7-12V Power (DC) | | | - | A0/D18 | | | - | A1/D19 | | | - | A10/D10 (PWM) | | | - | A2/D20 | | | - | A3/D21 | | | - | A6/D4 | | | - | A7/D6 (PWM) | | | - | A8/D8 | | | - | A9/D9 (PWM) | | | - | D14 (PWM SPI MISO) | | | - | D15 (SPI SCK) | | | - | D16 (SPI MOSI) | | | - | D2 (2C SDA) | | | - | D3(I2C SCL PWM) | | | - | D5 (PWM) | | | - | D7 | | | - | GND | | | - | GND | | | - | GND | | | - | Reset Input | | | - | RX (D0) | | | - | TX (D1) | | --- *Generated from [https://www.flux.ai/teaching-tomorrow/arduino-pro-micro~uf](https://www.flux.ai/teaching-tomorrow/arduino-pro-micro~uf)*