Arduino
Arduino Uno Rev3
Best development board for educational and hobbyist projects.
The Arduino Uno Rev3 is the ideal starting point for anyone new to electronics and coding. As the most popular and well-documented board in the Arduino family, it offers a robust and reliable platform for beginners to experiment with various projects. This microcontroller board, based on the ATmega328P, features 14 digital I/O pins (6 with PWM), 6 analog inputs, and ample memory for your creations. It's designed for ease of use, allowing you to learn and build without excessive worry about damaging the hardware.
$26.30
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Owner Satisfaction
4.6
/ 5
Category Rank
407
/ 1544
#407 in Development Boards
Price vs Category Average
-70%
Below average
Microcontroller
328
/ ATmegaP
Who it's for
- Newcomers to electronics and programming seeking an accessible entry point.
- Learners and hobbyists needing readily available help and inspiration.
- Makers and educators exploring various electronic and automation applications.
Who should skip it
- Advanced users requiring significant computational power or large memory.
- Budget-conscious hobbyists or those seeking maximum value per dollar.
- Developers building IoT devices or projects requiring native wireless features.
Performance breakdown
Beginner Accessibility
The gold standard for newcomers entering the world of physical computing.
Community Support
Unmatched library of tutorials and troubleshooting guides available online.
Hardware Durability
Rugged design withstands the inevitable mistakes of a learning environment.
Processing Power
Limited clock speed restricts performance for complex, high-compute applications.
I/O Versatility
Sufficient pin count for most introductory sensors and basic robotics projects.
Software Compatibility
Seamless integration with the Arduino IDE ensures a frictionless coding experience.
Key Specs
Microcontroller
ATmega328P
Operating Voltage
5V
Input Voltage
7-12V
Digital I/O Pins
14
PWM Pins
6
Analog Input Pins
6
Clock Speed
16 MHz
Flash Memory
32 KB
Features
- Ideal starter board for electronics and coding
- Most popular Arduino board with extensive documentation
- Robust and reliable for beginners
- Extensive community support and resources
What customers say
Customers consistently praise the Arduino Uno Rev3 for its exceptional ease of use, making it an ideal starting point for anyone venturing into electronics and programming. Its robust design and reliable performance ensure a smooth learning curve and dependable project execution. Users frequently highlight its high quality components and the extensive community support available, which significantly enhances the user experience. This board is widely regarded as a foundational tool, offering a straightforward path to understanding microcontrollers and building innovative projects with confidence. Its consistent functionality and accessibility are key drivers of its enduring popularity.
Know before you buy
Yes, it is widely considered the industry standard for beginners. Its popularity means you will find thousands of tutorials, community forums, and project guides specifically tailored to this board.
You can power the board via the DC power jack using a battery or power supply between 7V and 12V. Alternatively, you can power it directly through the USB connection when plugged into your computer.
All 14 digital pins can be used as standard inputs or outputs for simple tasks like turning an LED on or off. The 6 pins marked with PWM (Pulse Width Modulation) allow for more advanced control, such as dimming an LED or controlling the speed of a motor.
The board itself does not come with sensors or actuators, so you will need a USB-A to USB-B cable to connect it to your computer. It is highly recommended to purchase a basic 'starter kit' that includes breadboards, jumper wires, LEDs, and resistors to begin building circuits.
Because the Uno Rev3 is the most documented board in the ecosystem, it has the widest compatibility with the Arduino IDE and third-party libraries. Almost every project you find online will support this board natively.
With 32 KB of flash memory and 2 KB of SRAM, the board is perfect for learning and small-to-medium projects. However, it may struggle with memory-intensive tasks like complex graphics processing or high-speed data logging compared to more powerful 32-bit boards.
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