Arduino Nano vs Raspberry Pi Pico - What is the difference?

Last Updated May 25, 2025

The Raspberry Pi Pico offers a powerful dual-core ARM Cortex-M0+ processor with flexible I/O options, making it ideal for projects requiring higher processing speed and advanced features compared to the Arduino Nano's more straightforward AVR microcontroller design. Explore this article to understand which microcontroller suits Your project's needs perfectly.

Comparison Table

Feature Raspberry Pi Pico Arduino Nano
Microcontroller RP2040 Dual-core Arm Cortex-M0+ @133MHz ATmega328P 8-bit AVR @16MHz
Flash Memory 2MB on-board QSPI Flash 32KB Flash Memory
RAM 264KB SRAM 2KB SRAM
Operating Voltage 3.3V 5V (compatible with 3.3V)
GPIO Pins 26 multi-function GPIO 14 Digital I/O (6 PWM)
ADC Channels 3 Analog Inputs (12-bit ADC) 8 Analog Inputs (10-bit ADC)
USB Interface USB 1.1 Host/Device USB 2.0 Device
Power Consumption Low (approx. 100mA max) Moderate (approx. 19mA typical)
Programming Languages MicroPython, C/C++ C/C++, Arduino IDE
Price Approx. $4 Approx. $22
Use Case High-performance embedded applications, low-cost prototyping General purpose, beginner-friendly electronics projects

Introduction to Raspberry Pi Pico and Arduino Nano

Raspberry Pi Pico features the powerful RP2040 microcontroller with dual-core ARM Cortex-M0+ processors, offering high performance and low power consumption for versatile embedded projects. Arduino Nano utilizes the ATmega328P microcontroller, renowned for its ease of use and extensive community support, making it ideal for beginners and small-scale applications. Your choice between Raspberry Pi Pico and Arduino Nano depends on the specific requirements of processing power, connectivity, and project complexity.

Key Features Comparison

Raspberry Pi Pico offers a dual-core ARM Cortex-M0+ processor running at 133 MHz with 264 KB of SRAM and 2 MB of onboard flash memory, providing higher processing power and memory capacity compared to the Arduino Nano's ATmega328P microcontroller with 32 KB of flash and 2 KB of SRAM. The Pico supports flexible programming options including MicroPython and C/C++, while Arduino Nano primarily uses the Arduino IDE with C/C++. You will find the Raspberry Pi Pico excels in applications requiring faster computation and advanced peripherals, whereas the Arduino Nano remains ideal for simple, low-power projects with extensive community support.

Processing Power and Performance

The Raspberry Pi Pico features the dual-core ARM Cortex M0+ processor running at 133 MHz, delivering significantly higher clock speed and multitasking capabilities compared to the Arduino Nano's ATmega328P 8-bit microcontroller at 16 MHz. This increased processing power enables your projects to handle more complex computations, faster data processing, and improved real-time performance. For performance-intensive applications, the Pico's 32-bit architecture and higher memory capacity offer a distinct advantage over the Nano's 8-bit design.

Memory and Storage Capabilities

The Raspberry Pi Pico features 264KB of SRAM and 2MB of onboard QSPI flash storage, offering ample memory for complex programs and data logging. In contrast, the Arduino Nano typically provides 2KB to 8KB of SRAM and up to 32KB of flash memory, making it more suitable for simpler applications with limited data requirements. Your choice depends on whether you need higher memory capacity for multitasking or prefer the Arduino Nano's straightforward environment for straightforward embedded projects.

Connectivity Options and Interfaces

The Raspberry Pi Pico offers versatile connectivity options including USB 1.1 host/device, SPI, I2C, UART, and 16 PWM channels, supporting flexible interfacing for complex projects. The Arduino Nano provides similar interfaces like SPI, I2C, UART, and analog pins, but lacks native USB host capability, limiting certain peripheral connections. You can select the ideal microcontroller based on your project's need for high-speed USB communication or traditional serial interfaces.

Power Consumption and Supply

Raspberry Pi Pico operates on a low power consumption of approximately 1.3 mA in active mode and can drop to microampere levels in sleep mode, powered by a 1.8-3.3V supply. Arduino Nano typically consumes around 19 mA during operation with a 5V supply, which can be optimized using sleep modes but generally remains higher than the Pico. Your choice depends on the power efficiency needed for battery-operated projects, where the Pico offers a significant advantage in minimizing energy use.

Programming Environment and Language Support

Raspberry Pi Pico supports programming primarily through MicroPython and C/C++ via the official SDK, offering a flexible development environment with extensive libraries and real-time capabilities. Arduino Nano is primarily programmed using the Arduino IDE with a simplified C/C++ language, focusing on ease of use for beginners and vast community resources. Both platforms support extensive third-party tools, but Raspberry Pi Pico's dual-core processor enables more complex multitasking and application development.

Community Support and Documentation

Raspberry Pi Pico benefits from the extensive Raspberry Pi community and official documentation, offering detailed tutorials, SDKs, and active forums that facilitate development and troubleshooting. Arduino Nano boasts one of the largest maker communities worldwide, with abundant libraries, project examples, and comprehensive guides that support both beginners and advanced users. Your choice may depend on whether you prefer Raspberry Pi's growing ecosystem or Arduino's vast, established user base for robust community support and documentation.

Pricing and Availability

The Raspberry Pi Pico offers an affordable price point, typically around $4, making it highly accessible for hobbyists and educators. The Arduino Nano is slightly higher in cost, generally priced between $15 and $20, but benefits from widespread availability through various distributors. You can easily find both boards through online retailers and electronics stores, though the Pico's low cost and robust supply chain often make it the preferred choice for budget-conscious projects.

Best Use Cases and Applications

The Raspberry Pi Pico excels in projects requiring high-performance microcontroller functionalities, such as IoT devices, robotics, and real-time data processing, thanks to its dual-core ARM Cortex-M0+ processor and ample GPIO pins. The Arduino Nano is ideal for compact, low-power applications like wearable devices, simple sensor integrations, and prototyping due to its ease of use, extensive community support, and compatibility with a vast range of shields. Both platforms suit educational purposes but differ in processing capabilities and peripheral support, guiding users to select based on project complexity and power requirements.

raspberry pi pico vs arduino nano Infographic

Arduino Nano vs Raspberry Pi Pico - What is the difference?


About the author.

Disclaimer.
The information provided in this document is for general informational purposes only and is not guaranteed to be complete. While we strive to ensure the accuracy of the content, we cannot guarantee that the details mentioned are up-to-date or applicable to all scenarios. Topics about raspberry pi pico vs arduino nano are subject to change from time to time.

Comments

No comment yet