Arduino Uno Rev3 vs BBC micro:bit
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Arduino Uno Rev3 is a compact development board based on the ATmega328P microcontroller. It offers 14 digital I/O pins, 6 analog inputs, and a USB interface for easy programming. Its robust design, extensive community support, and open-source hardware make it ideal for learning electronics, building prototypes, and creating interactive projects.
The BBC micro:bit is a tiny, fully programmable microcontroller board designed for education and hobbyist projects. It features built‑in sensors, LEDs, and wireless connectivity, making it easy to create interactive prototypes without extra hardware. With support for multiple programming languages and a vibrant community, the micro:bit empowers students and makers to build games, wearables, IoT devices, and more, all while learning fundamental coding concepts.
- Low cost entry point
- Large community and library support
- Simple USB programming
- Robust and well‑documented
- Low cost and widely available
- Easy to program with block or text languages
- Rich set of built‑in sensors and LEDs
- Strong educational resources and community support
- Limited processing power compared to newer boards
- No native Wi‑Fi or Bluetooth
- 5 V logic may require level shifting for 3.3 V devices
- Limited processing power for complex tasks
- Small memory restricts large programs
- No built‑in Wi‑Fi limits internet connectivity
More alternatives & similar tools
Alternatives to Arduino Uno Rev3
View all →
An ultra-small Arduino-compatible microcontroller powerhouse designed for space-constrained projects.
A high-performance ARM Cortex-M7 development board designed for demanding embedded applications.
A compact and versatile development board powered by the ESP32 microcontroller for IoT applications.
Alternatives to BBC micro:bit
View all →An ultra-small Arduino-compatible microcontroller powerhouse designed for space-constrained projects.
The Verdict
AI-generated from listing dataThe BBC micro:bit is the lower‑cost, sensor‑rich board ideal for introductory coding and simple IoT projects, while the Arduino Uno offers more I/O pins, analog inputs, and a larger development ecosystem for broader prototyping.
Key differences
- •Built‑in 5×5 LED matrix and motion sensors on micro:bit vs. none on Arduino.
- •Arduino provides 14 digital pins (6 PWM) and a 6‑channel ADC; micro:bit has far fewer I/O options.
- •Micro:bit includes Bluetooth Low Energy for wireless; Arduino Uno has no native wireless.
- •Physical size: micro:bit is 4 × 2 × 0.7 cm (9 g) vs. Arduino’s 68.6 × 53.4 × 15 mm (25 g).
- •Price: micro:bit MSRP $19 vs. Arduino Uno Rev3 MSRP $22.
Performance
Arduino Uno’s ATmega328P offers more flash (32 KB) and I/O capability than micro:bit’s limited memory and pins.
Build quality
Both are solid, open‑source boards with similar warranty (1 year) and no specified differences in material quality.
Connectivity
Micro:bit provides built‑in Bluetooth Low Energy and USB; Arduino Uno lacks native wireless.
Power & efficiency
Micro:bit runs on a 3 V coin cell for weeks; Arduino requires 5 V supply and no battery runtime specified.
Compatibility
Arduino’s extensive shield ecosystem and 14 digital pins support more peripherals than micro:bit’s limited I/O.
Price & value
Micro:bit MSRP $19 is $3 cheaper than Arduino Uno’s $22.
Warranty & support
Both offer a 1‑year warranty and open‑source community resources.
Choose Arduino Uno Rev3 if…
Hobbyists or makers requiring more I/O pins, analog inputs, and a broad shield ecosystem for complex prototypes.
Choose BBC micro:bit if…
Educators or young beginners needing built‑in LEDs, sensors, and Bluetooth for simple classroom projects.
Common questions
Which board is cheaper?
The BBC micro:bit costs $19 MSRP, while the Arduino Uno Rev3 costs $22 MSRP.
Do either boards have built‑in wireless?
Only the micro:bit includes Bluetooth Low Energy; the Arduino Uno has no native Wi‑Fi or Bluetooth.
Which board offers more I/O for sensors and actuators?
The Arduino Uno provides 14 digital pins (6 PWM) and a 6‑channel 10‑bit ADC, whereas the micro:bit has far fewer programmable pins.