---
product_id: 1921013
title: "Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping"
brand: "arduino"
price: "287 Lei"
currency: RON
in_stock: true
reviews_count: 12
category: "Arduino"
url: https://www.desertcart.ro/products/1921013-arduino-uno-rev3-a000066-atmega328p-microcontroller-16mhz-14-digital-i
store_origin: RO
region: Romania
---

# 16 MHz ATmega328P MCU 14 Digital + 6 Analog I/O pins USB plug & play programming Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping

**Brand:** arduino
**Price:** 287 Lei
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your maker potential with the iconic Arduino Uno REV3!

## Quick Answers

- **What is this?** Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping by arduino
- **How much does it cost?** 287 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/1921013-arduino-uno-rev3-a000066-atmega328p-microcontroller-16mhz-14-digital-i)

## Best For

- arduino enthusiasts

## Why This Product

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

## Key Features

- • **Versatile I/O Options:** 14 digital pins (6 PWM) and 6 analog inputs let you connect sensors, motors, and more with ease.
- • **Arduino IDE Compatibility:** Tap into a massive open-source ecosystem with easy coding and endless project inspiration.
- • **Powerhouse Microcontroller:** Harness the reliable 16 MHz ATmega328P for smooth, efficient processing.
- • **Plug & Play USB Connectivity:** Instantly program and debug with seamless USB integration—no extra hardware needed.
- • **Education & Prototyping Standard:** Join millions of makers and professionals using the industry’s go-to board for innovation.

## Overview

The Arduino Uno REV3 features a 16 MHz ATmega328P microcontroller with 32KB flash memory, 14 digital I/O pins (6 PWM), and 6 analog inputs, all accessible via USB for easy programming. Fully compatible with the Arduino IDE, it’s the definitive development board for prototyping, education, and DIY electronics projects.

## Description

desertcart.com: Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping : Electronics

Review: Easy buy - There’s a reason this is one of if not the most popular microprocessor, at least for beginners. So easy to use. Compatible with nearly any other component. Compared to most microprocessors, it’s a great price for what you’re getting. Quality is consistent and long lasting.
Review: Exact (and branded) replacement. - Perfect functioning and pin-for-pin match for a generic unit I burned up and needed to replace in a small learning kit. Plug and play install, basically. These are supposed to be more robust as well, so we'll test that, too... I also love the little included tray the board fits perfectly into as well!

## Features

- ATmega328P Microcontroller: Powered by the reliable ATmega328P, running at 16 MHz with 32KB of flash memory, 2KB SRAM, and 1KB EEPROM, offering ample resources for a wide range of basic to advanced electronics projects.
- 14 Digital I/O Pins & 6 Analog Inputs: Features 14 digital I/O pins (6 of which support PWM output) and 6 analog inputs (10-bit resolution), providing flexible options for sensors, motors, and other external components.
- USB Connectivity for Easy Programming: The built-in USB port allows for direct programming and serial communication, enabling a simple connection to your computer for sketch uploading and debugging through the Arduino IDE.
- Compatible with Arduino IDE: Full compatibility with the Arduino IDE ensures easy access to a vast array of libraries, code examples, and community-driven projects, making the Uno a great choice for both beginners and experienced makers.
- Widely Used in Education & Prototyping: The Arduino Uno is a standard in educational environments, widely used for learning and teaching electronics and programming. It's perfect for prototyping, robotics, IoT projects, and more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008GRTSV6 |
| Batteries | 1 9V batteries required. |
| Best Sellers Rank | #2,074 in Electronics ( See Top 100 in Electronics ) #2 in Robotics (Industrial & Scientific) |
| Brand | Arduino |
| Color | Green |
| Computer Memory Type | SRAM |
| Customer Reviews | 4.7 4.7 out of 5 stars (10,187) |
| Date First Available | November 25, 2009 |
| Flash Memory Size | 1 GB |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 3.15 x 2.17 x 0.98 inches |
| Item Weight | 1.6 ounces |
| Item model number | A000066 |
| Manufacturer | ARDUINO |
| Number of Processors | 1 |
| Operating System | arduino |
| Power Source | 5 |
| Processor | 16 MHz |
| Processor Brand | Atmel |
| Product Dimensions | 3.15 x 2.17 x 0.98 inches |
| RAM | 8 KB SRAM |
| Series | ARD_A000066 |
| Standing screen display size | 1.5 Inches |
| Voltage | 12 Volts |
| Wireless Type | Bluetooth |

## Product Details

- **Brand:** Arduino
- **CPU Speed:** 16 MHz
- **Connectivity Technology:** USB
- **Memory Storage Capacity:** 32 KB
- **Model Name:** ARD_A000066

## Images

![Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping - Image 1](https://m.media-amazon.com/images/I/71ok6q+8tEL.jpg)
![Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping - Image 2](https://m.media-amazon.com/images/I/61AvdQOxFzL.jpg)
![Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping - Image 3](https://m.media-amazon.com/images/I/71GsBev1grL.jpg)
![Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping - Image 4](https://m.media-amazon.com/images/I/51Ci8gnvlAL.jpg)
![Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping - Image 5](https://m.media-amazon.com/images/I/61sXu7xOOBL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this an original Italy made Arduino?? or china product??**
A: If it is Arduino, it will say Arduino on the board.  The china board is called Elegoo, at least the most popular one, and it says Elegoo on it.  Pretty straight forward.  I have this board with the exact same packaging as is in the picture and it says Made in Italy.  It also says Arduino on it.

**Q: Do these come with the arduino.org label and not arduio.cc?  There was a falling out and to support original founders they need to be arduino.cc.**
A: New York, NY, Oct. 01, 2016 (GLOBE NEWSWIRE) -- Arduino, the world’s leading open-source ecosystem for Educators, Makers and IoT developers of all ages, today announced that Arduino LLC (aka Arduino.cc) and Arduino srl (aka Arduino.org) have signed a settlement agreement, and Arduino will become one. Please visit Arduino at this year’s MFNY to talk to the team and see demonstrations of Arduino products and more.By the end of 2016, the newly created “Arduino Holding” will become the single point of contact for the wholesale distribution of all current and future products, and will continue to bring tremendous innovations to the market.

**Q: Are the boards sold by Mp3Car Store genuine? Order is fulfilled by Amazon but some sellers are selling fake boards.**
A: The board I ordered from Amazon and fulfilled buy Dfunlife is a complete FAKE!! My first hint that it might be a counterfeit is the board, made in Italy, was shipped from China. I went to the Arduino web site (which I should have done before I ordered this from Amazon) and did a search on "counterfeit Arduino". It came back with a page of excellent instructions on telling counterfeits. Sure enough, there was my counterfeit. The kicker was the 501k component; it was green on my fake board. The Arduino site has a list of reputable distributers. Arduino uses some of the money from the sell of the REAL Arduino boards to support good causes. Counterfeiters just sell junk that tarnishes the reputation of good companies.

**Q: Does it come with a usb cable?**
A: The USB cable is not included

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy buy
*by L***E on November 10, 2025*

There’s a reason this is one of if not the most popular microprocessor, at least for beginners. So easy to use. Compatible with nearly any other component. Compared to most microprocessors, it’s a great price for what you’re getting. Quality is consistent and long lasting.

### ⭐⭐⭐⭐⭐ Exact (and branded) replacement.
*by I***V on January 7, 2026*

Perfect functioning and pin-for-pin match for a generic unit I burned up and needed to replace in a small learning kit. Plug and play install, basically. These are supposed to be more robust as well, so we'll test that, too... I also love the little included tray the board fits perfectly into as well!

### ⭐⭐⭐⭐⭐ Terrific - And it's expandable in many ways. POWER my world.
*by C***L on November 18, 2016*

Great device. I bought 3 of these and they are my go-to controller for some pretty sophisticated DIY projects. Do read about how not to over-drive the pins (demanding too much current from them). And, DO read about the difference in the +5v and "Vin" pins. There is a company that sells just the processor chip. They are reasonable (pkg 3) and I recommend having them on hand in case Murphy stops by for a visit. If you follow basic principles and NEVER try connecting a pin to something for "trial & error" but instead, be certain of the voltage AND current potential that you are supplying (or demanding), and this beautiful device will work like a horse. When it comes to your connection to the computer, some Windows serial "portage" issues arise but it's a matter of persistence. The Arduino IDE (programmer) has ways to let you see how things are going and which PORTs are connected and working. This is the only part that can be frustrating (other than writing software bugs. :-) Enjoy.. here's what I think about it and how I use it this week: Have fun: Keep in mind that if your project is complex and you need more pins, you can use the nice I2c bus that this UNO has available and you can connect Slave devices to expand the "pin-age". :-) I am going to add a AdaFruit Trinket Pro (powered from this UNO 5v bus) and let these two guys talk to each other over I2c; exchange info, and I get tons more PWMs and digital pins too. The cool thing is that the Trinket fits right on the back of this UNO's added shield. SWEET !! As usual, these are great. Notice that this is the R3 -- exactly what you want. I've written some great control software for controlling the RF oscillator in radio transmitters and this made the project a success. I added a stacking shield (Gikfun Prototype) for the additional hardware I needed and this UNO allows the flexibility of updating my own sketches if a new feature in my RF unit is warranted.

## Frequently Bought Together

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-08*