Pro Mini ATMEGA328P 3.3V/8M (Official Version)

(6 customer reviews)

In stock

SKU: 31249
  1. Microcontroller: ATmega328
  2. Circuit Operating Voltage: 3.3V
  3. Clock frequency: 8MHz.
  4. Digital I/O Pins: 14
  5. 8 analog input port: A0 ~ A7.
  6. A pair of TTL level serial port transceiver : RX / TX.
  7. 6 PWM port: D3, D5, D6, D9, D10, D11.
  8. Support serial download.


(Including GST)

In stock

Select below products to add together

Nano 328P Expansion Adapter Breakout Board IO Shield ₹ 82
Nano IO Expansion Shield for Arduino NANO 328P ₹ 163

New Price: ₹ 280

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Category: Boards Compatible with Arduino
Tags: Arduino, ATmega328, Robot Brain, Arduino Pro Mini, Mini Arduino, 3.3V Pro Mini, 3.3V Arduino

This is Pro Mini ATMEGA328P 3.3V/8MHz is a 3.3V Arduino running the 8MHz bootloader. Pro Mini ATMEGA328P come with connectors so that you can solder connector or wire with any orientation you need. We recommend the first time Arduino users start with the Uno R3.

It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (3.3V), lack of connectors, and USB off board.

The Pro Mini is a microcontroller board base on the ATmega328.  It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers.

A six pin header can be connected to an FTDI cable to provide USB power and communication to the board. The Pro Mini is intended for semi-permanent installation in objects or exhibitions. The board comes with headers, allowing the use of various types of connectors or direct soldering of wires. The pin layout is compatible with the Mini Arduino.

There is two versions of the Pro Mini. One runs at 3.3V and 8 MHz, the other at 5V and 16 MHz. To buy 5V/16MHz Pro Mini click on the name below

Pro Mini 5V/16MHz

Pinout Diagram:

Sku 31249 Pinout

Features :

  1. 8 analog input port: A0 ~ A7.
  2. A pair of TTL level serial port transceiver : RX / TX.
  3. 6 PWM port: D3, D5, D6, D9, D10, D11.
  4. Use For Atmel Atmega328P-AU microcontroller.
  5. Support serial download.
  6. Support 9V battery.

Useful Links :

Getting Started with Pro Mini

Package Includes :

1 x Pro Mini ATMEGA328P 3.3V/8M (Official Version)

3 x Male Header connector.



Circuit Operating Voltage (V)


Input Voltage (V)

3.3 to 12

Clock Frequency (MHz)


Analog I/O Pins


Digital I/O Pins


PCB Size ( L x W ) mm

33 x 18

Shipping Weight 0.08 kg
Shipping Dimensions 8 × 5 × 5 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 6 reviews

4.8 overall

Add a review

  1. amit.mohite (verified owner)

    Delivered in time. The product is working fine


  2. Venkat (verified owner)

    Delivered in time. Yet to start working with it.


  3. AMEY MORE (verified owner)

    Received in very good packaging and condition. Working properly. All that one requires.


  4. Jithin (verified owner)

    great product.. very much required for 3.3V logic modules…


  5. Arup (verified owner)

    The pro mini 3.3v 8mhz was delivered in time . The product is working fine !


  6. Radhe Nath Baidya (verified owner)

    Very fast delivery of, I got my product in 24 hours. Arduino mini pro is a awesome product, it is easy to use and if you want a mini microcontroller than it can be best choice of your’s.

    Radhe Nath Baidya


Questions and answers of the customers

  1. 1 vote
    Q is it already bootloaded answer now
    Asked by sygadkari on March 26, 2020 2:13 pm
    Answered by the admin

    Yes, it is already bootloaded

Only registered users are eligible to enter questions
Country Of Origin: China

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