Pro Micro Arduino Compatible

Available in 5V @ 16MHz or 3.3V @ 8MHz
Arduino Compatible

The Pro Micro is an Arduino-compatible board based on the ATmega32U4 processor. Available with a Micro USB connector or USB Type C connector. The USB transceiver inside the 32U4 adds USB connectivity on board, doing away with an external USB interface. Easy connectivity with the onboard Micro USB connector (see our Micro USB Cables) or Type C connector (see our USB Type C Cables).

The Pro Micro features 32KB of flash memory, 2.5KB of SRAM, 1KB of EEPROM, 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs, and hardware serial connections Rx and Tx. A voltage regulator on board allows it to regulate incoming power. If you supply unregulated power to the board, connect to the "RAW" pin, not VCC.

The Pro Micro is available in two models. The 5V version runs at 16MHz, while the 3.3V version runs at 8MHz for energy-efficient applications.

The Pro Micro is breadboard friendly, and the small size allows you to place the Pro Micro into your breadboard rather than jumpering from the board over to a breadboard. The small size also makes them useful for embedding into a permanent project.

Utilizing the same processor (Atmega32U4) as the Arduino Leonardo, the Pro Micro pinout gives quick access to all Analog and Digital pins along with the I2C and PWM pins.

Features:

• Size: 33mm x 18mm (1.3-inch x 0.7-inch)
• ATMega 32U4 running at 5V/16MHz or 3.3V/8MHz
• Supported under Arduino IDE
• Onboard micro-USB connector for programming
• 4 x 10-bit ADC pins
• 12 x Digital I/Os (5 are PWM capable)
• Rx and Tx Hardware Serial Connections
• Micro USB connection

Arduino IDE Setup

When setting up the Pro Micro in the Arduino IDE, select the Arduino Micro as the device option.

Links To Articles and Information on the Pro Micro

The Pro Micro is very popular with lots of useful information on the web with setup details, operational notes and programming examples available. Below are links to useful YouTube videos which may be of use and expand your knowledge of the device.

• Video: How To Turn An Arduino Into A USB Keyboard or Mouse
• Video: Pro Micro ATMEGA32U4 Arduino Pins and 5V, 3.3V Explained
• Video: How to Fix A Bricked Pro Micro (also see this Article)