Choosing the Right IoT Hero: ESP32 vs Raspberry Pi Pico





Welcome to the ever-evolving world of IoT, where innovation knows no bounds. In a realm where your imagination becomes reality, microcontrollers like the ESP32 and Raspberry Pi Pico stand as heroes, enabling you to bring your IoT dreams to life. Our blog post, “Choosing the Right IoT Hero: ESP32 vs Raspberry Pi Pico,” serves as your compass in this fascinating journey. By the end of this exploration, you’ll not only have the knowledge to select between these IoT champions but also a deeper appreciation for their capabilities and potential.

Understanding ESP32

Processing Power

The ESP32 is a formidable contender in the IoT arena. It boasts a dual-core Tensilica LX6 microprocessor, running at a brisk 240 MHz. This exceptional processing power allows it to handle multiple tasks simultaneously, making it an ideal choice for intricate IoT projects. Whether you’re dealing with data-intensive sensor readings or managing complex automation routines, the ESP32’s processing prowess ensures seamless operation and responsiveness.

Why Processing Power Matters: The processing power of the ESP32 is comparable to that of some desktop computers from a few years ago. This means it can effortlessly handle complex calculations, data processing, and multitasking, which are crucial for IoT projects involving numerous sensors and devices.


Connectivity is the lifeblood of IoT, and the ESP32 is a true communication powerhouse. It features built-in Wi-Fi and Bluetooth capabilities, supporting both Classic Bluetooth and Bluetooth Low Energy (BLE). This versatility opens the door to a wide range of IoT applications, allowing you to connect legacy devices and modern Bluetooth peripherals concurrently. With the ESP32, you’re equipped for seamless data exchange and control.

The Role of Connectivity: In IoT, connectivity is essential for gathering data from sensors, transmitting commands to actuators, and enabling remote monitoring and control. The ESP32’s robust connectivity options make it a versatile choice for various IoT scenarios.


Imagine GPIO pins as the nerves of your IoT project. The ESP32 offers an impressive array of these General Purpose Input/Output pins, each with multiple functions. This flexibility allows you to effortlessly interface with sensors, actuators, displays, and other external components, enabling your project to respond and adapt to its environment.

The Versatility of GPIO Pins: GPIO pins provide the means to interact with the physical world. The ESP32’s abundance of GPIO pins offers incredible versatility, making it suitable for a wide range of IoT applications, from environmental monitoring to robotics.


Memory is often the key to unlocking IoT potential. With the ESP32, you have room to spare. It boasts 520KB of SRAM and a generous 4MB of Flash memory. This ample storage capacity is particularly beneficial for projects that demand large codebases or data buffers. The ESP32 ensures that your IoT applications run smoothly without being constrained by memory limitations.

Memory for Data and Code: SRAM and Flash memory are vital for storing both data and program code. The ESP32’s generous memory resources provide ample space for data storage, program execution, and even over-the-air (OTA) updates.


Security is paramount in IoT, and the ESP32 rises to the occasion. It supports various encryption and authentication protocols, guaranteeing data integrity and confidentiality. Whether you’re dealing with sensitive information or safeguarding your IoT network, the ESP32 provides the necessary security features to meet your requirements.

Securing IoT Data: IoT devices often handle sensitive data, and security breaches can have significant consequences. The ESP32’s security features ensure that data remains protected, making it suitable for applications where data privacy is a top priority.

Power Efficiency

In the IoT realm, power efficiency can make or break a project. The ESP32 is thoughtfully designed with power efficiency in mind. It offers multiple low-power modes, allowing you to extend the battery life of your IoT devices. If you’re planning battery-powered IoT solutions, the ESP32’s power management capabilities ensure that your devices operate efficiently and reliably.

Prolonging Battery Life: Power-efficient IoT devices are crucial for applications where changing batteries frequently is impractical. The ESP32’s low-power modes make it possible to create long-lasting battery-powered solutions, such as remote sensors and wireless wearables.

Understanding Raspberry Pi Pico

Processing Power

The Raspberry Pi Pico may appear compact, but it’s no slouch when it comes to processing power. It features a dual-core ARM Cortex-M0+ processor, running at 133 MHz. While it may not match the raw processing speed of the ESP32, it’s still a capable contender for various IoT applications.

Balancing Power and Performance: The Raspberry Pi Pico’s processor strikes a balance between performance and power consumption, making it suitable for IoT projects that require moderate processing capabilities.


The Raspberry Pi Pico offers connectivity through its GPIO pins. While it lacks built-in Wi-Fi and Bluetooth, it can communicate with external modules and peripherals. This makes it suitable for IoT projects that rely on wired or external wireless communication options.

Wired and External Connectivity: The Raspberry Pi Pico’s reliance on external connectivity methods means it can be adapted to a wide range of communication protocols, from I2C and SPI to UART, making it flexible for various IoT scenarios.


GPIO pins are at the heart of the Raspberry Pi Pico’s capabilities. It provides a substantial number of GPIO pins, allowing you to connect a variety of sensors, displays, and other components. The flexibility of these pins empowers you to create custom IoT solutions tailored to your specific needs.

Customization and Expansion: The Raspberry Pi Pico’s GPIO pins are a blank canvas for your IoT creativity. You can expand its capabilities by connecting sensors, actuators, and displays, giving you the freedom to design IoT projects that align with your vision.


The Raspberry Pi Pico offers 26KB of SRAM, which, while less than the ESP32’s memory, is still sufficient for many IoT applications. If your project doesn’t demand extensive memory resources, the Raspberry Pi Pico’s compact profile and memory capacity make it a practical choice.

Optimizing Memory Usage: When working with the Raspberry Pi Pico, efficient memory management becomes crucial. By optimizing your code and data storage, you can make the most of the available SRAM.


Security considerations with the Raspberry Pi Pico often depend on external factors, such as the choice of communication protocols and the implementation of security measures in software. While it may not offer the same level of hardware-based security as the ESP32, the Raspberry Pi Pico can still be used securely with proper software and network design.

Software Security: When using the Raspberry Pi Pico, implementing secure coding practices and network security measures becomes essential to ensure data protection in IoT applications.

Power Efficiency

The Raspberry Pi Pico is designed to be power-efficient, especially when it enters a low-power sleep mode. While it may not have the extensive range of low-power modes as the ESP32, its power management features enable it to operate effectively in battery-powered IoT projects.

Balancing Performance and Power: For IoT applications where processing power isn’t the primary concern, the Raspberry Pi Pico’s energy-efficient design allows it to strike a balance between performance and power consumption.

Head-to-Head Comparison

Now, let’s perform a detailed head-to-head comparison of the ESP32 and Raspberry Pi Pico to assist you in making an informed decision for your IoT project.

Processing Power

ESP32: The ESP32’s dual-core processor excels in multitasking and handling demanding applications. It’s suitable for projects with complex computations and data processing requirements.

Raspberry Pi Pico: The Raspberry Pi Pico’s dual-core ARM Cortex-M0+ processor offers balanced performance, making it suitable for projects that don’t require high-end processing power.


ESP32: The ESP32’s built-in Wi-Fi and Bluetooth support, including BLE, enhance its connectivity options, making it versatile for a wide range of IoT applications.

Raspberry Pi Pico: The Raspberry Pi Pico relies on external connectivity options, allowing you to adapt it to various communication protocols.


ESP32: The ESP32 offers a generous number of GPIO pins, providing versatility for projects with multiple sensors and actuators.

Raspberry Pi Pico: The Raspberry Pi Pico provides a substantial number of GPIO pins, enabling you to connect various components and customize your IoT solutions.


ESP32: With ample SRAM and Flash memory, the ESP32 is suitable for projects with extensive codebases and data storage requirements.

Raspberry Pi Pico: The Raspberry Pi Pico’s 26KB of SRAM is sufficient for many IoT applications, particularly those with moderate memory needs.


ESP32: The ESP32 offers advanced security features, making it a strong choice for projects that prioritize data protection and secure communication.

Raspberry Pi Pico: Security with the Raspberry Pi Pico relies on software implementation, requiring attention to secure coding practices and network security measures.

Power Efficiency

ESP32: The ESP32’s multiple low-power modes make it an excellent choice for battery-powered projects that demand extended battery life.

Raspberry Pi Pico: The Raspberry Pi Pico’s power-efficient design allows it to operate effectively in battery-powered IoT solutions, although it may not have as many low-power modes as the ESP32.

When ESP32 Shines

Home Automation Hub

Imagine crafting a comprehensive home automation system where lights, thermostats, security cameras, and even your coffee maker are seamlessly interconnected. The ESP32’s dual-core processor and ample memory make it the ideal choice for managing multiple devices and orchestrating complex automation routines. Its Bluetooth capabilities enable seamless control from your smartphone, transforming your home into a modern smart oasis.

Smart Homes Redefined: The ESP32 elevates the concept of smart homes, providing the processing power and connectivity needed to create sophisticated automation systems that enhance comfort, convenience, and energy efficiency.

Remote Environmental Monitoring

In applications where you need to monitor environmental conditions in remote locations, such as weather stations or agricultural setups, the ESP32 shines. Its combination of processing power, memory, and connectivity options stands out. It can handle large data streams and communicate over Wi-Fi or Bluetooth, allowing you to efficiently gather and transmit data. This real-time insight into your environment empowers you with valuable information.

Real-Time Insights: The ESP32’s capabilities enable you to gain immediate insights into environmental conditions, helping you make informed decisions and take timely actions.

When Raspberry Pi Pico Is the Better Choice

Education and Learning

For educational purposes and IoT learning, the Raspberry Pi Pico is an excellent starting point. Its simplicity, affordability, and GPIO pins make it an ideal platform for students and beginners to explore the fundamentals of IoT. Learning how to work with sensors, actuators, and programming becomes accessible and enjoyable with the Raspberry Pi Pico.

Educational Empowerment: The Raspberry Pi Pico empowers students and learners to dive into the world of IoT, fostering creativity and technical skills.

Prototyping and Rapid Development

In the realm of prototyping and rapid development, the Raspberry Pi Pico shines. Its user-friendly nature, combined with an array of GPIO pins, facilitates quick and cost-effective prototyping. You can bring your IoT concepts to life without the need for extensive hardware setup, making the Raspberry Pi Pico an ideal choice for early-stage project development.

Accelerating Innovation: The Raspberry Pi Pico accelerates innovation by reducing the time and resources required for prototyping and experimentation.

DIY IoT Gadgets

Hobbyists and DIY enthusiasts will find a valuable ally in the Raspberry Pi Pico. Its compact size, GPIO pins, and power efficiency cater to the needs of creative makers. Whether you’re building custom IoT gadgets, interactive displays, or inventive contraptions, the Raspberry Pi Pico provides the flexibility and affordability to fuel your DIY spirit.

Unleash Your Creativity: With the Raspberry Pi Pico, your imagination is the limit. You can unleash your creativity and embark on exciting DIY IoT projects that reflect your unique vision.

Choosing the Right IoT Hero

Selecting the right IoT hero for your project extends beyond comparing specifications; it’s about aligning strengths with your project’s unique requirements. Our decision-making framework considers factors like processing power, connectivity, GPIO pins, memory, security, and power efficiency. These criteria ensure that your chosen IoT hero integrates seamlessly with your project’s objectives.

Tailored Solutions: The choice between the ESP32 and Raspberry Pi Pico allows you to tailor your IoT solutions to specific needs, whether they involve home automation, remote monitoring, education, prototyping, or DIY creativity.

Community and Support

Venturing into the IoT world doesn’t mean embarking on a solitary journey. In this section, we introduce you to vibrant online communities and resources dedicated to both the ESP32 and Raspberry Pi Pico. Discover the power of collaboration as you connect with fellow IoT enthusiasts, seek solutions to your challenges, and share your successes. These thriving hubs of knowledge and support ensure that you’re never alone in your IoT adventure.

Community Collaboration: Joining these communities means tapping into a wealth of knowledge and experience, making your IoT journey more enjoyable and rewarding.


As we conclude our exploration, let’s recap the key takeaways. You now possess a deep understanding of the unique strengths of the ESP32 and Raspberry Pi Pico and how to harness their power for your IoT projects. The choice is ultimately yours, and we’ve equipped you with the knowledge to make it wisely.

The IoT Journey Continues: But don’t stop here; the world of IoT is vast, and there’s always more to explore and create. The ESP32 and Raspberry Pi Pico are just the beginning of an exciting adventure in the world of connected devices.

Thank you for joining us on this enlightening journey, and remember, in the world of IoT, heroes come in many forms, each ready to assist you in turning your dreams into reality. Stay curious, keep learning, and continue shaping the future with your IoT projects.

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One response to “Choosing the Right IoT Hero: ESP32 vs Raspberry Pi Pico”
  1. […] Choosing the Right IoT Hero: ESP32 vs. Raspberry Pi Pico: A blog post that scrutinizes the ESP32 and Raspberry Pi Pico, two open-source platforms replete with distinctive hardware and software attributes. […]

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