Best Arduino Motherboards of 2026

The Arduino Uno REV3 is your gateway to the fascinating world of electronics. It is ideal for learning the fundamentals of sensors and actuators, making it perfect for beginners. As the most widely used board globally, it offers extensive documentation to help you navigate its features. With 14 digital input/output pins, including 6 that can function as PWM outputs, you can easily create various projects. Additionally, its 6 analog inputs allow for a broad range of sensor applications, enhancing your prototyping experience.

The Arduino Leonardo Board is an innovative device that acts as a standard HID USB input device. This means you can easily create your own keyboard or mouse, providing a great way to personalise your computing experience. With 20 digital I/O pins, you can expand your projects by connecting various components. Additionally, setting up is a breeze; simply plug it into your computer with a USB cable or power it with an adapter or battery. Plus, it is compatible with most Arduino UNO shields, allowing you to enhance your board with exciting new features.

The Arduino Nano 33 IoT is a compact and powerful board that combines ease of use with secure Internet of Things (IoT) and Bluetooth connectivity. With its Arm Cortex-M0+ microcontroller and pre-certified ESP32-based WiFi and Bluetooth module, you can develop robust applications with confidence. This board operates at a clock speed of 48MHz and offers sufficient memory for your projects. Additionally, the secure connectivity options ensure that your IoT applications are safe from external threats, providing you with peace of mind as you innovate.

The Arduino UNO Kit is an engaging way to learn the basics of electronics. By manually assembling your own Arduino UNO, you will become familiar with soldering techniques, enhancing your skills in a hands-on manner. Once completed, the kit allows you to create an audio synthesizer, enabling you to explore your musical creativity. The included comprehensive instructions, featuring videos and a 3D interactive viewer, guide you through every step, making the learning process enjoyable and accessible.

The Arduino Nano 33 BLE is a versatile development board that harnesses the power of the nRF52840 chip, providing you with a robust platform for various projects. Its compatibility with MicroPython allows you to easily programme and customise your applications, making it accessible for both beginners and seasoned developers. With seamless Bluetooth Low Energy connectivity, you can effortlessly connect to a range of devices, enhancing your ability to create interconnected systems. Additionally, the built-in 9-axis IMU offers precise motion tracking, ideal for wearables and projects that rely on accurate real-time data.

The Arduino Portenta H7 offers an impressive dual-processor system that allows you to run multiple tasks simultaneously, enhancing your project’s efficiency. With the capability to execute various codes, including Arduino, mbedOS, and TensorFlow Lite, you can tackle a wide range of applications. Its unique form factor includes additional connectors, making it easy to expand your device with Ethernet, CAN bus, and extra GPIO pins. The onboard WiFi and Bluetooth provide fast connectivity, enabling seamless communication for your projects.

The Arduino Portenta H7 Lite is a powerful motherboard featuring two processors that operate in parallel, allowing you to execute various programming languages like Arduino, mbedOS, micropython, and TensorFlow Lite seamlessly. This flexibility is ideal for users who need to run multiple tasks simultaneously. With additional high-density connectors, you can easily expand your board with interfaces such as Ethernet ports and SD cards. The in-house WiFi and Bluetooth connectivity, boasting a transfer rate of up to 65 Mbps, ensures you can stay connected effortlessly. This makes the Portenta H7 Lite perfect for advanced industrial machinery and laboratory equipment.

The Arduino MKR Connector Carrier is a handy expansion board designed to enhance your Arduino MKR projects by providing versatile connectivity. It offers a simple breakout for digital and analog I/O pins, making it easy for you to connect sensors, motors, and modules without complex wiring. This is particularly useful when prototyping or experimenting with IoT devices, sensor systems, or robotics, as it allows you to quickly test different components. Compatible with various MKR boards like the MKR Zero and MKR Wi-Fi 1010, it ensures smooth integration for your projects.