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Seeed Studio XIAO RP2040 is an Arduino-compatible microcontroller featuring the Raspberry Pi RP2040 chip. Its signature values of high performance, low cost, ease of use, and tiny thumb size make it perfect for TinyML, smart wearable devices, and IoT projects.


  • High Performance: Powered by RP2040, dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz, 264KB of SRAM, and 2MB of onboard Flash memory
  • Small Size: As small as a thumb(21x17.5mm) for wearable devices and small projects
  • Easy Development: Supports Arduino / Micropython / CircuitPython
  • Multiple interfaces: 11 digital pins, 4 analog pins, 11 PWM Pins,1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface
  • Suitable for Micro machine learning: With two fast cores, plenty of on-chip RAM, and a port of TensorFlow Lite, RP2040 is a great platform for machine learning applications.
  • Designed for production: Breadboard-friendly & SMD design, no components on the back

RP2040 is the debut microcontroller from Raspberry Pi. It brings signature values of high performance, low cost, and ease of use to the microcontroller space.

Seeed Studio XIAO RP2040 is based on the RP2040 chip and wrapped in a compact size with multiple interfaces like other products from the Seeed Studio XIAO series, and it's compatible with the Seeed Studio XIAO expansion board.

In addition to the powerful CPU, the Seeed Studio XIAO RP2040 has 264K SRAM and 2MB of Flash on board. Some PINs have various functions. Moreover, Seeed Studio XIAO RP2040 supports the USB Type-C interface which can supply power and download code. 1 Reset button, 1 BOOT button, 1 user-programmable RGB LED, 1 power LED, 2 status indicators, and 1 user LED are on board, allowing developers to debug their code very easily.

The robust performance makes it perfect for machine learning applications, and the tiny size allows it to be used in wearable devices, not just for prototypes but the mass production.

To provide a more smoothed learning experience for beginners, we have prepared a free course based on the Starter Kit for Seeed Xiao which contains 4 Units and 16 lessons to help you quickly get started with development boards, and then you can proceed to realize little and individual fun projects.

You can have access to the Seeed Studio Grove ecosystem by connecting it to the compatible Seeed Studio XIAO expansion board. We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. For example, you can make an IR Remote Control Fan by connecting the Seeed Studio XIAO RP2040 with an expansion board, a Grove IR(Infrared) Receiver, a Grove - Servo, and a Grove - Mini Fan v1.1. Get started and explore the infinite possibilities of the Seeed Studio XIAO series!

Furthermore, Seeed Studio XIAO RP2040 is friendly to the communities for its strong software compatibilities, which supports Arduino, Micropython, and CircuitPython. Except for the software, flexible I/O allows it to speak to almost any external device. You can also use the Thonny editor to program as if you were using Raspberry Pi Pico.

By the way, we've set up a tinyml channel on our Discord server, please click to join for 24/7/365 making, sharing, discussing, and helping each other out.

We already have 5 XIAO products based on different solutions in the Xiao family, to help you better understand the differences and choose the most suitable part for your projects, please refer to the Seeed Studio XIAO Series Page.

Seeed has rich products and resources based on the RP2040 chip:

For more details, you can visit our Seeed Studio RP2040 Microcontroller family.





Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz


264KB of SRAM, and 2MB of onboard Flash memory


11 digital pins, 4 analog pins, 11 PWM Pins


1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface

Power supply & Downloading interface

USB Type-C interface


1 user LED, 1 power LED, two LEDs for serial port downloading, 1 RGB LED


1 RESET button, 1 BOOT button

Power Pads

For the battery power supply

Software compatibility

Support Micropython / Arduino / CircuitPython


Projection cover for protecting the circuit


21x17.5 mm


All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise, the CPU may be damaged.


  • Wearable devices

  • Rapid prototyping (directly attached to the expanded PCB as a minimal system)

  • Perfect for all the projects that need mini Arduino

  • USB development (USB to multi-channel TTL/USB host mode, etc.)

  • DIY keyboard

Hardware Pinout

Part List

Seeed Studio XIAO RP2040 Microcontroller x1

Check five pieces of 7-pin male header compatible for Seeed Studio XIAO Series Board!

Co-invent with Seeed

Raise your Seeed Studio XIAO RP2040 projects to the next level with Seeed Fusion! Seeed Fusion provides a free prototype sponsor program for products based on Seeed Studio XIAO RP2040 and you may license Seeed to manufacture and sell your products to the community all over the world and share profits. Learn More

If you are an enthusiastic keyboards makers, DIY XIAO Mechanical Keyboard Contest is the place for you. Show us your XIAO keyboard creations for a chance to win $1000 in prizes and Seeed XIAO Pillows!!! To join the contest.


HSCODE 8543709990
USHSCODE 8471490000
EUHSCODE 8543709099
CE 1
EU DoC 1
RoHS 1
UK DoC 1



This is the wiki page for this product, which will show you how to use the product, as well as details about the software and hardware.
Here are some Features of Raspberry Pi RP2040 chip,RP2040-based Boards, Accessories and Projects from the community, including how to build your own RP2040 PCB Board.
The Raspberry Pi RP2040 is fuelling a microcontroller revolution, giving rise to a new generation of platforms like the XIAO RP2040, Raspberry Pi Pico, Arduino Nano RP2040 Connect, Wio RP2040, and more!
Get to know Wio Terminal TinyML Course #7 Machine Learning on ARM Cortex M0+ MCU Seeeduino XIAO and XIAO RP2040
The RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit by Raspberry Pi Foundation.
Have space constraints on your Arduino Project? Need a small Arduino board? However, there are so many small Arduino boards out there currently out there. Which one should you use?
What is TensorFlow Lite ? Just heard of TensorFlow Lite and want to know more about it? Today we will discuss everything about TensorFlow Lite.
The compact Xiao RP2040 provides an elegant solution with its fast MCU and large SRAM to drive large e-paper displays, with almost all the pins used.
Keypad with cipher numerals.
This video will show you an RP2040 games console project and how to replace the Pi Pico with this smaller board for the creator's final PCB design.
This example shows Point-to-Point (P2P) communication between two Grove Wio-E5 using CircuitPython.
A minimalist 18-key Numpad using the Seeed Studio XIAO RP2040, a single analog pin, and room for expansion!
The original MiRage modular mechanical keyboard had an incredible response - over 2000 people want to clack like Zack.
Just got your Arduino but don’t know what to do with it? No worries, we have compiled 30 cool Arduino projects to get you started!
Implementing machine learning models running on small, low-power microcontrollers and incorporating them into your projects becomes more accessible and affordable.



Write Your Own Review
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  1. Product Quality
    from order view
    Love these little guys. Waiting for the BLE's to come into stock
  2. Product Quality
    from order view
    Arduino and CircuitPython and MicroPython work with this chip
  3. Product Quality
    from order view
    Great quality as always.
  4. Product Quality
    from product detail summary
    small size, love it, it seems the circuitpython library has been updated, helps a lot.
  5. Product Quality
    from product detail summary
    Tiny size, love it, seems that the circuitpython wiki has already been fixed, it helps a lot!


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