Keyestudio PRO MICRO 5V 16MHZ ATMEGA32U4-MU Development Board For Arduino

The Keyestudio Pro Micro is a highly compact ATmega32U4-powered development board fully compatible with the Arduino platform. It is an excellent choice for students, makers, and hobbyists looking to embed interactive intelligence into everyday objects and small-scale projects.

ATmega32U4 microcontroller core

Powered by the ATmega32U4-MU 8-bit Atmel AVR processor running at 16 MHz, this board features 32kB of flash program memory, 2.5kB of internal SRAM, and 1kB of EEPROM. It contains all the necessary support components to get you programming immediately upon connecting to a computer.

Flexible power and connectivity

With a working voltage of 5V, the board can be powered directly through its micro USB port or via the RAW and GND pins using a DC 7-9V input. A 1-metre black micro USB cable is included in the package to simplify your initial setup.

Digital and analog interfacing

The board provides 18 digital input/output pins, 5 of which support 8-bit PWM output, alongside 9 analog inputs connected to a 10-bit ADC. Each pin supports a recommended current of 20mA, with a maximum limit of 40mA per pin.

Unsoldered headers for custom integration

To facilitate seamless physical integration into tight enclosures, the board is supplied without pre-welded pin headers. The package includes two yellow 1x12 2.54mm straight pins, allowing you to solder them yourself to suit your specific design.