# PRO MINI 3.3V development board

- Page: https://sigmanortec.ro/en/pro-mini-33v-development-board
- Price: 37.40 RON
- Availability: In stock; 1-2 zile
- Reference: 33265 · EAN: 5944270430448
- Category: Mechatronics and IoT > Development Board > Arduino Compatible Boards
- Specifications: Input Voltage: 3.3 V
- Package (shipping data): 0.005 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 04:49 (Europe/Bucharest)

## Description

Ideal for compact and low-power projects, this ATmega328P board runs at 3.3V and 8MHz, is programmed from the Arduino IDE via a TTL-USB adapter, has 14 digital and 8 analog pins for fast interfacing, and is powered on the RAW pin at 5-12VDC via an integrated regulator.
PRO MINI 3.3V development board, compatible with Arduino IDE. The board requires a programmer to be programmed. The power is supplied through the RAW pin with a voltage of up to 12VDC.
If the plate cannot be rewritten, follow the following steps:
- Disconnect the programmer with the Pro Mini board from the PC.
- Hold down the RESET button.
- Keep the button pressed and connect the board to the PC.
- Keep the button pressed and upload the code.
- When "Uploading" appears in the Arduino IDE, give way to the RESET button
Specifications:
Supply voltage: 5 - 12VDC, integrated voltage regulator, only on the RAW pin
Microcontroller: Atmega 328P
Logic voltage: 3.3V
Processor frequency: 8MHz
Digital pins: 14
Analog pins: 8
PWM pins: 6 - D3, D5, D6, D9, D10, D11
Connection: TTL to USB
Dimensions mm: 33.3 x 18
YOU CAN ORDER A MAXIMUM OF 4 PIECES PER ORDER. FOR LARGER QUANTITIES, PLEASE USE THE CONTACT PAGE.