--- product_id: 47870397 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: "€ 51.49" currency: EUR in_stock: true reviews_count: 13 category: "Arduino" url: https://www.desertcart.pt/products/47870397-arduino-uno-rev3-a000066-atmega328p-microcontroller-16mhz-14-digital-i store_origin: PT region: Portugal --- # 16 MHz ATmega328P speed 14 Digital I/O + 6 Analog inputs USB connectivity for easy 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:** € 51.49 **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?** € 51.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/47870397-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 Pins:** 14 digital and 6 analog inputs let you connect sensors, motors, and more with ease. - • **Plug & Play USB Interface:** Instantly upload and debug sketches with hassle-free USB connectivity. - • **Massive Community & IDE Support:** Tap into endless tutorials, libraries, and projects to accelerate your build. - • **Powerful 16 MHz Microcontroller:** Run complex projects smoothly with the reliable ATmega328P core. - • **Perfect for Prototyping & Learning:** Trusted by educators and pros alike for rapid innovation and hands-on coding. ## 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 seamless programming. Fully compatible with the Arduino IDE, it’s the go-to board for beginners and professionals to prototype electronics, robotics, and IoT projects backed by a massive global community. ## Description From the manufacturer Overview Technology Arduino Uno Rev3 is a microcontroller board based on the ATmega328P, an 8-bit microcontroller with 32KB of Flash memory and 2KB of RAM. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. Review: Nice Little Multitasking Board - I love this little machine. You can use it for a range of different tasks, from simple light blinks to complex timed sequences. While I haven't had the equipment to make elaborate projects with it so far, many people have used it to improve their everyday life, such as using it as an automatic plant waterer or pairing it with an RC522 Module to use it as an RFID door lock. The arduino itself is very easy to setup and use, as there are many useful videos online which give you tutorials on how to get started, and the actual Arduino IDE is incredibly beginner-friendly and even runs on Operating Systems such as Ubuntu and Kali (which can't be said for other IDEs...)! It is a bit annoying that the REV3 uses a slightly outdated USB for its power and data, but it's not too much of a bother. The pins on the Arduino are very easy to use and the actual Arduino is presented beautifully. As I said, I haven't gotten to the point of doing very difficult tasks with it, but it has worked nearly flawlessly for the stuff that I have done with it. It has a decent chunk of memory for tasks and runs pretty damn fast. Overall, this is a great computer-ette which boasts a very beginner-friendly community and software, and is very nice to use. Review: Arduino Uno: The best starter board (ever!!) - I’ve been using the Arduino Uno for a while, and I think it’s fair to review it now. Here we go: Why I Love It: 1) Super Easy to Get Started – I was up and running in no time, even as a beginner. The Arduino IDE is simple, and there are endless (literally!) tutorials to follow online. 2) Huge Community Support – Anytime I hit a roadblock, I found a solution online. The community is massive, and that makes troubleshooting way easier. 3) Endless Possibilities – I’ve built everything from simple LED animations to a real-time dashboard for sensor readings. The fact that you can combine hardware and software so effortlessly is what makes this so exciting. A Few Downsides: 1) No Built-in WiFi or Bluetooth – I had to get extra modules for that, but honestly, at this price, I can't complain. 2) Limited Memory – It’s great for small to mid-sized projects, but if you're doing something complex with a ton of data, you might need a bigger board like the Arduino Mega. Final Thoughts: If you're into DIY, electronics, coding, or just love building stuff, the Arduino Uno is a must-have. And if you pair it with Processing (free GUI gui software) , like I did, you can build some seriously cool projects. Highly recommend! ## Features - Warning:Not suitable for children under 14 years. For use under adult supervision - 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 | | Best Sellers Rank | 4,802 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 16 in Motherboards | | Box Contents | USB cable. | | Brand | Arduino | | Brand Name | Arduino | | CPU Model | MediaTek MT8125 | | CPU model | MediaTek MT8125 | | CPU speed | 16 MHz | | Compatible Devices | PC, Smartphone | | Connectivity technology | USB | | Country of Origin | Italy | | Customer Reviews | 4.7 out of 5 stars 9,675 Reviews | | Global Trade Identification Number | 07630049200050 | | Item Dimensions L x W x H | 8L x 5.5W x 2.5H centimetres | | Item Type Name | Arduino® Microcontroller UNO Rev3 DIL ATMega328 | | Item Weight | 0.1 Pounds | | Manufacturer | Arduino | | Manufacturer Part Number | A000066 | | Memory Storage Capacity | 32 KB | | Memory storage capacity | 32 KB | | Model Name | Uno | | Model Number | A000066 | | Model name | Uno | | Network Connectivity Technology | USB | | Operating System | FreeRTOS | | Processor Brand | Atmel | | Processor Count | 1 | | Processor Speed | 16 MHz | | Product Warranty | 1 YearManufacturer Guarantee | | RAM Memory Technology | SRAM | | Total USB Ports | 1 | | Unit Count | 1.0 count | | Wireless Compability | Bluetooth | ## Product Details - **Brand:** Arduino - **CPU model:** MediaTek MT8125 - **CPU speed:** 16 MHz - **Memory storage capacity:** 32 KB - **Model name:** Uno ## 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) ## Questions & Answers **Q: Do I need to buy usb cable seperately?** A: Yes,you need,the USB cable is not included.Many thank and best regards.Pinto Elettronica Italia **Q: With the Arduino Uno R3 connected to a PC VIA USB will I be able to read/write to the i/o lines from the PC?** A: Yes provided you download Arduino IDE. **Q: Does it have built-in wifi?** A: Hi there, no, the uno would require a WiFi sheild attaching to it. Hope that helps **Q: hello, can you confirm that these are original Arduino products and that they have "made in italy" not "designed in italy" on the board? many thanks** A: Hi Sud,Glad to be of help. The Arduino UNO R3 I ordered back in January of this year does have "made in italy" on it. It also came with what I believe was the correct packaging and I believe it to be genuine. However, I went back to check my review and see that the UNO offered now is £11-55 against the £21-01 I paid and I see that the supplier is different. Now a bargain is one thing but I think that around £20 or so is the going rate for a genuine UNO and I suspect that for £11-55 you may get a clone. I notice that the page does not claim to offer a genuine UNO. Searching amazon for "UNO R3" I found a model claiming to be genuine for £21-89 and I think this may be what you are looking for. I would add that I have a genuine UNO R3 so that I can test stuff that I can put on my website using this as the "reference" arduino design, but I do also use cheaper clones but only after using the genuine model as a prototyping board. It may be a bit naughty of amazon to change the supplier like this and leave the reviews in place. Hope this helps, please ask any other questions you may have.Regards,EddieB. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice Little Multitasking Board *by H***Y on 24 September 2025* I love this little machine. You can use it for a range of different tasks, from simple light blinks to complex timed sequences. While I haven't had the equipment to make elaborate projects with it so far, many people have used it to improve their everyday life, such as using it as an automatic plant waterer or pairing it with an RC522 Module to use it as an RFID door lock. The arduino itself is very easy to setup and use, as there are many useful videos online which give you tutorials on how to get started, and the actual Arduino IDE is incredibly beginner-friendly and even runs on Operating Systems such as Ubuntu and Kali (which can't be said for other IDEs...)! It is a bit annoying that the REV3 uses a slightly outdated USB for its power and data, but it's not too much of a bother. The pins on the Arduino are very easy to use and the actual Arduino is presented beautifully. As I said, I haven't gotten to the point of doing very difficult tasks with it, but it has worked nearly flawlessly for the stuff that I have done with it. It has a decent chunk of memory for tasks and runs pretty damn fast. Overall, this is a great computer-ette which boasts a very beginner-friendly community and software, and is very nice to use. ### ⭐⭐⭐⭐⭐ Arduino Uno: The best starter board (ever!!) *by A***. on 1 February 2025* I’ve been using the Arduino Uno for a while, and I think it’s fair to review it now. Here we go: Why I Love It: 1) Super Easy to Get Started – I was up and running in no time, even as a beginner. The Arduino IDE is simple, and there are endless (literally!) tutorials to follow online. 2) Huge Community Support – Anytime I hit a roadblock, I found a solution online. The community is massive, and that makes troubleshooting way easier. 3) Endless Possibilities – I’ve built everything from simple LED animations to a real-time dashboard for sensor readings. The fact that you can combine hardware and software so effortlessly is what makes this so exciting. A Few Downsides: 1) No Built-in WiFi or Bluetooth – I had to get extra modules for that, but honestly, at this price, I can't complain. 2) Limited Memory – It’s great for small to mid-sized projects, but if you're doing something complex with a ton of data, you might need a bigger board like the Arduino Mega. Final Thoughts: If you're into DIY, electronics, coding, or just love building stuff, the Arduino Uno is a must-have. And if you pair it with Processing (free GUI gui software) , like I did, you can build some seriously cool projects. Highly recommend! ### ⭐⭐⭐⭐⭐ Essentially a mini computer *by M***Z on 12 November 2025* Very easy to use microcontroller that is compatible with almost every component in electronics. This is essentially a mini computer with very open capabilities in terms of what u can create with this. It's made out of strong materials so it won't just break randomly if you drop it and for the price it is great. If you choose to add LCD 16x2's which display stuff, the quality is really good and you can read the content off of them very clearly. ## Frequently Bought Together - 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 - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - BOJACK 3 Values 130 Pcs Solderless Breadboard 4 Pcs 830 Tie Points & 400 Tie Points & 126 Pcs Flexible Breadboard Jumper Wires --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/47870397-arduino-uno-rev3-a000066-atmega328p-microcontroller-16mhz-14-digital-i](https://www.desertcart.pt/products/47870397-arduino-uno-rev3-a000066-atmega328p-microcontroller-16mhz-14-digital-i) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-12*