PRO Micro Beetle ATmega32u4 Development Board Compatible with Arduino


  • Small form-factor development board for ATmega32u4 microcontroller (Compatible with Arduino Micro)
  • Plugs right into your USB-port, ready for development!
  • Digital I/O: 10 (5 PWM); analog input: 5; 1×I2C; 1×UART
  • USB-A port; all pin headers are shipped unsoldered!



The board in this listing is a perfect clone of the fantastic ATmega32u4 Arduino Leonardo. It is a small form-factor replica, so it has the same functionality with a reduced pinout on a smaller footprint. It is able to run the same code, be programmed in the same way. Simply select “Arduino Leonardo” in the Arduino IDE (Tools > Board > Arduino Leonardo), and it’s ready to go—the ATmega32u4 onboard comes with a bootloader that allows you to upload your code right out-of-the-box.

The ATmega32u4 microcontroller has an USB interface without the need for a Serial UART-to-USB adapter. This allows for this board to be smaller than its ATmega328 counterparts. A fantastic feature of this board is that it plugs right into the USB port of your computer, without the need of a cable, so it’s ready to program and run your code without the need of additional components or accessories.

The PRO Micro Beetle has the same functionality of the Arduino Leonardo, but in a different package. Wheareas it’s the smallest Arduino Leonardo clone available, it delivers everything we would expect from a microcontroller development board without compromising functionality.


  • Microcontroller: ATmega32u4
  • Operating Voltage: 5V
  • Input Voltage (recommended):5V (USB-A interface; no regulator onboard)
  • Digital I/O: 10 (5 PWM)
  • Analog Input: 5
  • Max I/O Current: 40mA
  • Flash Memory (internal): 32KB (0.5 KB used by bootloader)
  • SRAM (internal): 2KB
  • EEPROM (internal):1KB
  • Clock Speed: 16MHz

Additional information



Item model number


Item Weight

0.211 ounces

Product Dimensions

1 x 0.2 x 0.5 inches

Item Dimensions LxWxH

1 x 0.2 x 0.5 inches


Compatible with Arduino



Customer Reviews

.noUnderline a

Best Sellers Rank

#1,860 in Single Board Computers (Computers & Accessories)

Date First Available

November 14, 2016


Visit the ACROBOTIC Store


There are no reviews yet.

Be the first to review “PRO Micro Beetle ATmega32u4 Development Board Compatible with Arduino”

Your email address will not be published. Required fields are marked *