---
product_id: 135492437
title: "3pcs Pro Mini ATmega328P 3.3V 8M Module Board with Crystal Oscillator Compatible Arduino Pro Mini Replace ATmega128"
brand: "hiletgo"
price: "S$28"
currency: SGD
in_stock: true
reviews_count: 8
category: "Hi Letgo"
url: https://www.desertcart.sg/products/135492437-3pcs-pro-mini-atmega328p-3-3v-8m-module-board-crystal
store_origin: SG
region: Singapore
---

# 8 MHz clock speed 32 KB flash memory 3.3V low-voltage compatibility 3pcs Pro Mini ATmega328P 3.3V 8M Module Board with Crystal Oscillator Compatible Arduino Pro Mini Replace ATmega128

**Brand:** hiletgo
**Price:** S$28
**Availability:** ✅ In Stock

## Summary

> 🚀 Mini Board, Mega Potential: Power Your Next Innovation with Pro Mini Precision!

## Quick Answers

- **What is this?** 3pcs Pro Mini ATmega328P 3.3V 8M Module Board with Crystal Oscillator Compatible Arduino Pro Mini Replace ATmega128 by hiletgo
- **How much does it cost?** S$28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/135492437-3pcs-pro-mini-atmega328p-3-3v-8m-module-board-crystal)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust & Reliable:** Built to endure real-world use—trusted by pros who demand consistent performance.
- • **Compact Powerhouse:** Ultra-small 33x18mm footprint fits seamlessly into any sleek project.
- • **Auto-Reset Convenience:** Supports auto-reset with FTDI Basic Breakout for smooth development flow.
- • **Plug & Play Bootloader:** Pre-installed bootloader means zero hassle programming—no ISP burner needed.
- • **Seamless 3.3V Integration:** Native 3.3V support for effortless connection to modern sensors and modules.

## Overview

The HiLetgo Pro Mini ATmega328P is a compact, 3.3V, 8MHz microcontroller board with 32KB flash memory and pre-installed bootloader, designed for seamless integration with low-voltage devices and FTDI Basic Breakout boards. Ideal for professionals seeking a reliable, space-saving solution for sensor-driven and embedded projects.

## Description

Specifications: Main Chip: Atmega328P-AU. The bootloader is already installed in the board. Flash Memory: 32 KB of which 2 KB used by bootloader. 8MHz clock frequency. USB connection off board. Supports auto-reset. Max 150mA output. Over current protected. Support external power supply 3.3V. Size: 33mm*18mm*6mm. 14 digital input / output port: RX, TX, D2 ~ D13. 8 analog input ports: A0 ~ A7. 1 pair TTL level serial transceiver port: RX / TX. 6 PWM ports: D3, D5, D6, D9, D10, D11. Note: *** Pro mini modules have a lower max current draw than the bigger UNOs and MEGAs, so do not run too many things off of VCC. Package included: 3* HiLetgo Pro Mini ATMEGA328P 3.3V 8MHz Module

Review: Real workhorse - Liked - works reliably, takes a lot of abuse and still keeps on ticking Dislikes - Not an issue with this specific supplier, but across multiple suppliers the header for the serial link is not consistent. Some suppliers the ground pins are on the right and other suppliers the ground pins are on the left side.
Review: Reasonable prices - Always get what pay for. Good products, good price, good availability.

## Features

- Pro Mini Atmega328 3.3V 8Mhz
- It has been programmed for its bootloader, without the user to buy ISP burner for programming, user-friendly.
- This board connects directly to the FTDI Basic Breakout board and supports auto-reset.
- Low-voltage board needs no interfacing circuitry to popular 3.3V devices and modules (GPS, accelerometers, sensors, etc)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RS911JD |
| Best Sellers Rank | #934 in Single Board Computers (Computers & Accessories) |
| Brand | HiLetgo |
| CPU Speed | 8 MHz |
| Compatible Devices | FTDI Basic Breakout board, 3.3V devices, GPS accelerometer sensor devices |
| Connectivity Technology | USB |
| Customer Reviews | 3.9 out of 5 stars 88 Reviews |
| Item Dimensions L x W x H | 1.3"L x 0.71"W x 0.24"H |
| Item Height | 6 millimeters |
| Manufacturer | HiLetgo |
| Memory Storage Capacity | 32 KB |
| Model Name | Pro Mini ATmega328P |
| Operating System | Linux |
| Processor Brand | Atmel |
| Processor Count | 1 |
| Processor Speed | 8 MHz |
| RAM Memory Technology | SRAM |
| Total Usb Ports | 1 |

## Product Details

- **Brand:** HiLetgo
- **CPU Speed:** 8 MHz
- **Connectivity Technology:** USB
- **Memory Storage Capacity:** 32 KB
- **Model Name:** Pro Mini ATmega328P

## Images

![3pcs Pro Mini ATmega328P 3.3V 8M Module Board with Crystal Oscillator Compatible Arduino Pro Mini Replace ATmega128 - Image 1](https://m.media-amazon.com/images/I/713ADZW6DQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Real workhorse
*by J***A on May 30, 2021*

Liked - works reliably, takes a lot of abuse and still keeps on ticking Dislikes - Not an issue with this specific supplier, but across multiple suppliers the header for the serial link is not consistent. Some suppliers the ground pins are on the right and other suppliers the ground pins are on the left side.

### ⭐⭐⭐⭐⭐ Reasonable prices
*by Z***N on August 4, 2024*

Always get what pay for. Good products, good price, good availability.

### ⭐ Total poop! They don't work without modification!
*by G***Y on May 16, 2023*

I wish I had taking the time to read the reviews before I bought these boards. Very very poorly made, they even typos in the silk screen pin labels. Like many others have complained about I was unable to upload to them even after burning a new bootloader. After some investigation I found that they had the wrong crystal installed. The 3v3 8Mhz board had a 16Mhz crystal installed. The ATMega328p does not run reliably at 16Mhz with a 3v3 vcc. I ordered boards without USB converters because I had a limited power budget. I am running off of batteries so I really didn't need the regulator. I removed it and flashed the 5v 16Mhz bootloader and then enabled a clock divider in my project code. I can use them now, but I'll never buy form this vendor again!

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sg/products/135492437-3pcs-pro-mini-atmega328p-3-3v-8m-module-board-crystal](https://www.desertcart.sg/products/135492437-3pcs-pro-mini-atmega328p-3-3v-8m-module-board-crystal)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-24*