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Wio Terminal is an ATSAMD51-based microcontroller with both Bluetooth and Wi-Fi Wireless connectivity powered by Realtek RTL8720DN, compatible with Arduino and MicroPython. Currently, wireless connectivity is only supported by Arduino. More than just a single embedded functional module, Wio Terminal itself is integrated with a 2.4” LCD Screen, onboard IMU(LIS3DHTR), microphone, buzzer, microSD card slot, light sensor, infrared emitter(IR 940nm).On top of that, it also has two multifunctional Grove ports for Grove Ecosystem and 40 Raspberry pi compatible pin GPIO for more add-ons. All of these practical add-ons are carefully housed in a compact enclosure, making it an efficient and product-ready product. Equipped with Raspberry Pi 40-pin GPIO, it can be mounted to a Raspberry Pi as a slave device.

Key Features

  • Powerful MCU: Microchip ATSAMD51P19 with ARM Cortex-M4F core running at 120MHz

  • Reliable Wireless Connectivity: Equipped with Realtek RTL8720DN, dual-band 2.4Ghz / 5Ghz Wi-Fi

  • Complete system equipped with Screen + Development Board + Input/Output Interface + Enclosure

  • Highly Integrated Design: 2.4” LCD Screen, MCU, IMU, WIFI, BT, and more practical add-ons housed in a compact enclosure with built-in magnets & mounting holes allows you to easily set up your IoT project

  • Raspberry Pi 40-pin Compatible GPIO enables installation as a peripheral to the Raspberry Pi

  • External onboard multi-functional Grove ports: Compatible with over 300 Plug&Play Grove modules to explore with IoT

  • USB OTG Support: can act as a USB host (reads data or signals from a mouse, keyboard, MIDI device, 3D printer, etc.) or USB client (emulates a mouse, keyboard, or MIDI device to a host PC).

  • Support Arduino, CircuitPython, Micropython, ArduPy(What is ArduPy?), AT Firmware, Visual Studio Code

  • Azure Certified Device: Sense and tag real-world data and visualize through Azure IoT Central 

  • TELEC certificated


The Wio (Wireless Input and Output) platform (Wio Link, Wio Nodes, etc.) was first introduced to the world at the end of 2015 by Seeed. 

Meet our new member: Wio Terminal is compatible with Arduino and Micropython, built with an ATSAMD51 microcontroller with wireless connectivity supported by Realtek RTL8720DN. Its CPU speed runs at 120MHz (Boost up to 200MHz). Realtek RTL8720DN chip supports both Bluetooth and Wi-Fi providing the backbone for IoT projects. The Wio Terminal is Highly Integrated with a 2.4” LCD Screen, there is an onboard IMU(LIS3DHTR), microphone, buzzer, microSD card slot, light sensor, and infrared emitter(IR 940nm). 

There are built-in magnets and two mounting holes on the well-designed enclosure, allowing you to set up your IoT project without hassle.

On top of that, it also has two multifunctional Grove ports for connecting with over 300 modules and Raspberry Pi 40-pin compatible GPIO for tons of Pi HAT add-ons, which means there are endless IoT possibilities you can create with this tiny device! 

With Wio Terminal, you can: 

  • Sense and tag the Real-World data with over 300 Groves created by Seeed and visualize through Azure IoT Central Platform to create an end-to-end IoT project

  • Use 100% open-source Hardware in a pythonic way

  • Build your program interpreter starting from 90% with an LCD screen and compact enclosure

  • Create embedded GUI with easy-to-use graphical elements and beautiful visualized editing tools.

Check the Wio Terminal Starter Kit, which is a collaboration between Seeed and Microsoft for IoT beginners. The hardware includes Wio Terminal provided by Seeed, a variety of optional Grove, other mods, etc. Learn the basics of the Internet of Things with this free 12-week, 24-lesson curriculum from Microsoft Cloud Advocates. Build prototypes of real-world IoT projects as you learn all about IoT whilst following the journey of food from farm to table.

Wio Terminal Based IoT Scenario Kits with step-by-step tutorials


Hello World of AI

Powered by TinyML and Wio Terminal, Paired up with Edge Impulse and Azure IoT, your will find an easier way to navigate the ever-changing landscape of their AIoT journey. 

Connecting the Wio Terminal to Azure IoT Central

Wio Terminal is an Azure-certified device, not only can the artificial nose sense and tag the scents you want to know in the air, but everything can be analyzed and visualized in real-time through Azure IoT Central. More importantly, you can automatically trigger rules when, for example, a bad smell is being detected, therefore allowing the nose to be much smarter than if it were just a standalone, offline, device.

Connecting the Artificial Nose to Azure IoT Central – Real-time telemetry.

What other cool things can you play with Wio Terminal?

  • Artificial Nose that can Discern Different Kinds of Rum or ScotchTV

  • Affordable IR Thermal Imaging Camera

  • Remote Controller

  • Cost-effective Pulse Oximeter

  • Weather Forecast Monitor

  • Run TinyGO on Wio Terminal

  • Printer

  • GPS Navigator

  • Water Level Detector



  • Python Terminal Device

  • Data Collection Machine Learning powered device

  • Hand-held analyzer 

  • Retro Gaming Device

  • IoT Controller

  • Smart Robot for Education

  • IoT application quick prototyping

  • Slave devise / Accessories for Raspberry Pi

Collaborate With the Worldwide Community! 

Wio Terminal Classroom

In this show, our engineer Lakshantha will explain how to use the Wio terminal along with the software and present you with fun demos as well! In this episode, you will learn about how to draw text strings by using the coordinate system and will learn to display "Hello World!" at the end of the video! 

Stay tuned to our show and we hope this helps you to gain more knowledge on how to program with the Wio Terminal!


Fully Open-source Manufacturing Process

As a fully open-source device, Wio Terminal development will continue to optimize its performance and every update will be publicized on our blog. We are also making a series of Vlog about the fully open-source manufacturing process of Seeed products. From hardware and software development to each step of manufacture and testing, you can find all you want to know about Wio Terminal, check now!

Pinout Diagram

Wio Terminal Pin Out Overview by Seeed
Wio Terminal Pin Out Overview by @matsujirushi12

Hardware Overview

Setup, Documentation, and Support


Technical Specifications

Main Chip

Manufacturer Part Number


Core Processor

ARM® Cortex®-M4F running at 120MHz


4 MB External Flash, 192 KB RAM

Maximum Speed


External Flash


Operating Temperature

-40°C ~ 85°C (TA)

LCD Screen



Display Size


Drive IC


Wireless Connectivity

Manufacturer Part Number



ARM® Cortex®-M4F @ 200MHz


ARM® Cortex®-M0


802.11 a/b/g/n 1x1, Dual Band 2.4GHz & 5GHz


Support BLE5.0

Built-in Modules




1.0V-10V -42dB


≥78dB @10cm 4000Hz

Light Sensor


Infrared Emitter



MicroSD Card Slot

Maximum 16GB


40-PIN (Raspberry Pi Compatible)

Supported Protocol

SPI, I2C, I2S, ADC, DAC, PWM, UART(Serial)


2 (Multifunction), for Digital, Analog, I2C, and PWM



USB Type-C

Power & USB-OTG

Operation Interface

5-Way Switch

Power/Reset Switch

User-defined button *3



Built-in magnets and two mounting holes





Software Support




AT Firmware

Visual Studio Code

CircuitPython ( How to run CircuitPython on Wio Terminal?)


Part List

  • Wio Terminal
  • USB Type-C Short Cable
  • User Manual



秋月電子通商(JAPAN)                                                          Digi-Key Corporation(GLOBAL)

Mouser Electronics, Inc(GLOBAL)                                       Distrelec(Europe)

BOTLAND B. DERKACZ SP.J.(Poland)                               BotShop(South Africa) 




HSCODE 8543709990
USHSCODE 8471490000
EUHSCODE 8543709099
CE 1
EU DoC 1
RoHS 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.
Wio Terminal can run as USB-Host and use USB devices
Using PlatformIO to develop Wio Terminal
Let's see who could be the "Statue" in front of Wio Terminal and Grove - Mini Lidar Challenge of highi degree of accuracy and precision.
This project is going to introduce how this Grove-Analog Microphone works via Serial Port and Wio Terminal!
Since the release of Wio Terminal, we have seen many creative projects from the community. We collected various projects in this post and hope some of them will inspire you!
Grove - Thermal Imaging Camera IR Array (MLX90641) with Wio Terminal
Lakshantha will explain how to use Wio terminal along with the software and present you fun demos as well! So we request you to stay tuned with our show and we hope this helps you to gain more knowledge on how to program with the Wio Terminal!
Edge Impulse enables developers to create the next generation of intelligent device solutions with embedded Machine Learning. Machine Learning at the very edge will enable valuable use of the 99% of sensor data that is discarded today due to cost, bandwidth or power constraints.
Monitoring basement to make sure humidity does not rise too high and alert to check if dehumidifier bucket is full.
Porting Arduboy to SAMD51 MCU and ILI9341 TFT display using Wio Terminal.
This course is designed to introduce beginners to the basics of Embedded Machine Learning with Wio Terminal and Codecraft graphical programming. Course content features seven detailed step-by-step projects.
You can visit here to see the video about how to use graphical programming Codecraft to learn TinyML.
Here is a series of videos in Chinese on how do you apply Deep Learning in Wio Terminal.
Collate forearm muscle soreness data on the SD card, build and train a neural network model, and run the model directly on Wio Terminal.
This project gonna show you how to build a Audio Visualiser using Wio Terminal
What is TensorFlow Lite ? Just heard of TensorFlow Lite and want to know more about it? Today we will discuss everything about TensorFlow Lite.
This video will show you the Wio Terminal, a device that has a display screen and buttons, which can use to control and monitor various projects via WiFi.
This ML powered device smell diesel and send realtime notification on mobile. Using Wio terminal, Edge Impulse & Blynk.
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.
AEye can be able to detect when your stove has been left unattended using Wio Terminal and thermal camera.
Biofloc fish project monitoring. Water quality maintenance and monitoring in any aquaculture are the essential practices aiming at the success of the growing cycles.
Due to quarantine obligations, many teachers couldn't make assigned experimental work. Build here a nice lab assistant for remote lessons.
The Air Quality Terminal can be used as an indoor air quality meter to monitor VOCs, CO, NO2, C2H5CH, Temp, and Humidity.
Display a decibel meter on Wio Terminal with an accurate measurement!
This allows you to use Wio Terminal as the core of an IoT device and able to control hardware from phones very easily!
This demo is displaying the face expression, and it uses the servo as the neck to torsion head.
WioTerminal with a CO2 sensor to measure the indoor air quality and remind to ventilate the room. Useful IoT device - 2020 Corona Pandemie.
3 accelerations monitoring using internal IMU sensor (text display mode, graph mode).
Seeed Wio Terminal have new WiFI and Bluetooth Firmware based on eRPC a.k.a Embedded Remote Procedure Call that supports 5Ghz WiFi and BLE.
Wio terminal is a very good product that comes from Seeed, let's get to see what included in the box!
The video explains in detail how we proceeded to design a benchmark that would provide reliable values ​​both for Arduino and for boards compatible with fast Arm microprocessor onboard.
This shows how to use Seeedstudio Wio Terminal to make a 2.4 GHz and 5 GHz dual-band WiFi analyzer. (Author: @moononournation)
Read the cycling speed, rotation speed and oil temperature, and other information, displayed on the Wio Terminal screen.
we have gathered all helpful resources for Wio Terminal together in this blog, covering various tutorials, software/hardware updates, reviews, and projects, and will keep updating weekly.



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    Very excited about this product!
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    the product is well designed and documentation sufficiently provided.
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  5. Product Quality
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    It is great IoT devices


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