Description
ELEGOO UNO R3 Microcontroller Board with USB Cable for Arduino Projects
Every Arduino tutorial starts with the UNO board. Every beginner class uses it. Every maker guide shows it first. If you want to learn electronics and coding, this is where everyone begins. The ELEGOO UNO R3 gives you that exact same board at a friendlier price. Same chip. Same pin layout. Same code. Same results as the official version.
Plug in the USB cable. Open Arduino software. Upload your first program. Your LED blinks. First project done in under five minutes. From there you build bigger things. Sensors. Motors. Robots. This board grows with your skills.
Key Benefits
- ATmega328P processor: Same 16MHz chip as the official Arduino UNO. Every tutorial, library, and example project works on this board exactly the same way.
- ATmega16U2 USB chip: The real USB interface. Not a cheap CH340 clone needing driver downloads. Your computer recognizes it right away on Windows, Mac, and Linux.
- 14 digital pins with 6 PWM: Connect LEDs, buttons, relays, servos, buzzers, and motors. Enough pins for beginner and intermediate projects.
- 6 analog inputs: Read temperature, light, sound, and distance sensors. Turn real world data into something your code can respond to.
- Labeled pins: Pin names printed on the board. No separate diagram needed. Beginners know exactly where each wire goes.
- USB cable included: USB-A to USB-B cable in the box. Connect and start coding right away. No extra purchase needed.
- Two power options: USB power while coding at your desk. Or 7 to 12 volt external supply for standalone projects running without a computer.
- Shield compatible: Standard UNO layout fits motor shields, sensor boards, WiFi modules, and hundreds of add-on boards that stack on top.
Product Specifications
- Brand: ELEGOO
- Processor: ATmega328P, 16MHz
- Memory: 32KB flash
- USB chip: ATmega16U2
- Digital pins: 14 (6 PWM)
- Analog inputs: 6
- USB: USB-B
- Power: USB or 7 to 12V
- Software: Arduino IDE
- Layout: UNO, shield compatible
Who Is It For?
- Beginners: Your first board for learning. Every starter tutorial works on this right out of the box.
- Classrooms: Low cost per board. Buy enough for a whole class at a fraction of official board pricing.
- Robotics builders: Stack motor and sensor shields on top. Build cars, robot arms, and moving projects from the UNO up.
- Home automation: Control relays and sensors. Prototype smart home ideas before building permanent hardware.
- Makers: Weather stations, LED displays, alarm systems, automatic plant watering. This board runs all of it.
How to Start
Download the free Arduino IDE on your computer. Plug the USB cable into the board and your computer. Select “Arduino UNO” from the board menu. Open any example sketch. Click upload. Your project runs in seconds. Follow any Arduino tutorial online from there. They all work with this board.
Why Choose the ELEGOO UNO R3?
The official Arduino UNO costs more for the same chip and layout. ELEGOO uses the real ATmega328P processor and real ATmega16U2 USB interface. Not cheap substitutes. Every sketch, shield, and library made for Arduino UNO works here identically. Labeled pins help beginners wire without confusion. USB cable included so you start immediately. Buy one for yourself or several for a classroom without worrying about the price. Same learning experience at a smarter cost.
What Is in the Box
- 1 x ELEGOO UNO R3 Board
- 1 x USB-A to USB-B Cable
- Breadboard, sensors, shields NOT included
Frequently Asked Questions
Is this official Arduino?
No. Made by ELEGOO. Uses the same processor and layout. Works with the same software and tutorials identically.
Do Arduino tutorials work?
Yes. Select “Arduino UNO” in the IDE. All tutorials, libraries, and example code work exactly the same.
ATmega16U2 vs CH340?
ATmega16U2 is the official USB chip. Works without extra drivers. CH340 is cheaper and sometimes needs a separate driver download to function.
Safe for kids?
Yes with adult supervision. Runs on low voltage. Great for school projects and home learning with a parent or teacher.
Get the ELEGOO UNO R3 today. Same chip as Arduino UNO. Cable included. Start your first project in minutes.
