Choosing between the Arduino R4 and the Raspberry Pi 5 depends on your project needs. Both are powerful tools but excel in different areas. Here’s a quick guide:
Choose Raspberry Pi 4: If you need a full-fledged computer for projects like IoT, machine learning, media streaming, or web servers. Ideal for advanced programming, multitasking, or network-based applications.
Choose Arduino R4: If you’re working on projects focused on hardware control, sensors, and real-time processing like robotics, LED displays, or motor control. Perfect for beginners learning electronics or anyone needing precise hardware timing.
Arduino Uno Rev4
Raspberry Pi 4


Feature Comparison: Arduino R4 vs. Raspberry Pi 5
Feature | Arduino R4 | Raspberry Pi 4 |
---|---|---|
Processor | 32-bit Arm Cortex-M4 at 120 MHz | Quad-core Cortex-A76 at 2.4 GHz |
RAM | 32 KB SRAM | 4 GB or 8 GB LPDDR4X |
Storage | No onboard storage (program stored on flash memory) | MicroSD card slot + eMMC storage (optional) |
Operating System | None (Runs bare-metal code or a real-time OS) | Linux-based OS (e.g., Raspberry Pi OS) |
Programming Languages | C, C++, Arduino IDE, MicroPython | Python, C++, Java, Node.js, and many others |
GPIO Pins | 14 digital, 6 analog pins, PWM support | 40 pins with advanced interfaces (I2C, SPI, UART) |
Power Supply | USB-C (5V) or external power (7-12V) | USB-C (5V, 15W minimum) |
Connectivity | Optional Wi-Fi/Bluetooth (R4 Wi-Fi model) | Built-in Wi-Fi 6, Bluetooth 5.0, Gigabit Ethernet |
Video Output | None | Dual 4K HDMI |
Audio Output | None | 3.5mm jack, HDMI audio, USB audio |
USB Ports | 1 USB-C | 2 USB 3.0, 1 USB 2.0, USB-C |
Ease of Use | Beginner-friendly; ideal for learning electronics | Suitable for users comfortable with Linux and programming |
Cost | Lower (approx. $30-$50) | Higher (approx. $60-$100) |
Key Advantages
Why Choose Arduino R4?
- Simple and straightforward for controlling hardware.
- Real-time performance with no operating system overhead.
- Durable and beginner-friendly for learning electronics.
- Cost-effective for small-scale projects.
Why Choose Raspberry Pi 4?
- Can run a full Linux operating system.
- Perfect for multitasking and advanced programming.
- Supports high-performance applications like machine learning and media streaming.
- Extensive connectivity options for IoT and networking projects.
Example Use Cases
Arduino R4 Projects
- Automated garden watering systems.
- LED light displays or interactive art.
- Robotics with precise motor control.
- Weather station with sensors.
Raspberry Pi 4 Projects
- Home automation with IoT.
- Personal web server or cloud storage.
- Media center for streaming 4K content.
- AI projects using TensorFlow or PyTorch.
Conclusion
Both the Arduino R4 and Raspberry Pi 4 are exceptional boards, but their strengths cater to different project needs. If your focus is on hardware-level control or real-time tasks, go with Arduino R4. For advanced programming and multitasking, Raspberry Pi 5 is the better choice.
No matter your choice, both boards will open up a world of possibilities for your electronics projects. Happy tinkering!