# Leonardo Pro Micro development board, ATMega32U4, MiniUSB, 5V

> Arduino-compatible Leonardo Pro Micro development board based on the ATMega32U4 microcontroller running at 16MHz. Programmed via Mini USB port, powered at 5V. Features 12 digital I/O pins (5 of them PWM), 4 10-bit ADC pins and Rx/Tx serial connection. Power on RAW pin: 6-12VDC. Logic voltage 5V. Includes protection diode and PTC fuse.

- Page: https://sigmanortec.ro/en/leonardo-pro-micro-development-board-atmega32u4-miniusb-5v
- Price: 43.35 RON
- Availability: In stock; 1-2 zile
- Reference: 9156 · EAN: 5946609016439
- Category: Mechatronics and IoT > Development Board > Arduino Compatible Boards
- Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.006 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:33 (Europe/Bucharest)

## Description

Compact Arduino compatible board for HID and control projects, based on ATMega32U4 at 16MHz, directly programmable via Mini USB at 5V. Offers 12 digital IO pins with 5 PWM, 4 10-bit ADC inputs and Rx Tx serial connection, ideal for automation, sensors and rapid prototyping.
Arduino compatible development board, Leonardo Pro Micro, which uses the ATMega 32U4 microcontroller.
The advantages of this board are the 4 ADC channels at 10-bit, 5 PWM pins, 12 digital I/O pins as well as the serial connection Rx and Tx.
The board operates at a frequency of 16MHz and is powered at 5V through the Mini USB port. It has an integrated voltage regulator and can accept up to a maximum of 12V (we recommend powering below this voltage). Warning! Power only through the RAW pin, not VCC!
The board has a protection diode and PTC fuse.
Programming is done via the USB port with a Mini USB cable.
Specifications:
USB power voltage: 5V
USB type: Mini USB (like Nano boards)
Power voltage on the RAW pin: 6 - 12VDC
Logic voltage: 5V
Microcontroller: ATMega 32U4
Processor frequency: 16MHz
10-bit ADC pins: 4
Digital I/O pins: 12 - of which 5 are PWM
Serial communication pins: 2, Rx and Tx
Pinout: