# Pro Micro development board, 5V, ATmega32U4, MicroUSB

> Pro Micro development board, Arduino-compatible (select Leonardo board in Arduino IDE), based on the ATmega32U4 microcontroller running at 16MHz, with a MicroUSB connector (depending on batch, it may also be MiniUSB). Powered by 5V on the VCC/USB pin or 6-9V on the RAW pin (max 12V). Features 12 digital I/O pins (5 PWM), 4 analog pins, 32KB memory, 1KB EEPROM, 2.5KB SRAM, max 40mA current per I/O.

- Page: https://sigmanortec.ro/en/pro-micro-development-board-5v-atmega32u4-microusb
- Price: 47.77 RON
- Availability: In stock; 1-2 zile
- Reference: 33585 · EAN: 5949613686803
- 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): 0.004 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 project board with native USB interface, ideal for automation, HID keyboards and rapid prototyping. Based on ATmega32U4 at 16MHz, it offers 5V power supply via USB or VCC and 6-9V on RAW, 12 digital pins with 5 PWM and 4 analog inputs. Compatible with Arduino IDE by selecting the Leonardo board.
The ProMicro 5V/16MHz development board, compatible with Arduino, is a development board similar to the Pro Mini board, with the difference that it incorporates the ATmega32U4 microcontroller and the presence of the MicroUSB connector.
CAREFUL! DEPENDING ON THE BATCH, THE CONNECTOR CAN BE MINIUSB OR MICROUSB. CONTACT US TO BE SURE OF THE CONNECTOR PRESENT ON THE BOARD IN YOUR ORDER.
The power supply can be carried out on the RAW pin with a maximum voltage of 12V (recommended 7V). Do not feed on the VCC pin if you do not have a constant 5V source.
The board is programmed with the Arduino IDE (not mandatory), where you choose the Leonardo board and the respective COM.
You can read here details about installing the driver .
Specifications:
Supply voltage: 5V (VCC or USB pin) - 6-9V (RAW pin)
Memory: 32KB
Digital I/O Pins: 12
PWM pins: 5
Analog I/O Pins: 4
Current per I/O: max 40mA
Frequency: 16MHz
EEPROM memory: 1KB
SRAM: 2.5KB