Wio Terminal: ATSAMD51 Core with Realtek RTL8720DN BLE 5.0 & Wi-Fi 2.4G/5G Dev Board

98% of 100

Compatible with Arduino and MicroPython, Wio Terminal is an ATSAMD51-based microcontroller with both Bluetooth and Wi-Fi connectivity powered by Realtek RTL8720DN. 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). 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.

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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
  • Highly Integrated Design: 2.4” LCD Screen, IMU and more practical add-ons housed in a compact enclosure with built-in magnets & mounting holes
  • Raspberry Pi 40-pin Compatible GPIO
  • Compatible with over 300 plug&play Grove modules to explore with IoT
  • USB OTG Support
  • Support Arduino, CircuitPython, Micropython, ArduPy(What is ArduPy?), AT Firmware, Visual Studio Code
  • 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. 

Today a new Wio member is joining the family - Wio Terminal. Instead of being a single embedded functional module, Wio Terminal is more of a complete system equipped with Screen + Development Board + Input/Output Interface + Enclosure, making it an efficient and Product-Ready Product.

With Wio Terminal, you can: 

  • Sense and tag the Real-World data with over 300 Groves created by Seeed
  • Use a 100% open-source Hardware in a pythonic way
  • Build your program interpreter starting from 90% with LCD screen and compact enclosure

Compatible with Arduino and Micropython, Wio Terminal is an ATSAMD51-based 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 itself is equipped with a 2.4” LCD Screen, onboard IMU(LIS3DHTR), microphone, buzzer, microSD card slot, light sensor, and infrared emitter(IR 940nm). On top of that, it also has two multifunctional Grove ports for Grove Ecosystem and Raspberry pi 40-pin compatible GPIO for more add-ons.

  • Wio Terminal + Grove = IoT System
  • Wio Terminal + Raspberry Pi = Edge Computing System
  • Wio Terminal + Customized add-ons = Handheld devices or endless possibilities!

What is Grove?

No jumpers or soldering required, Grove makes it easier to connect, experiment, and simplify the prototyping process significantly. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Each one comes with clear documentation and demo code to help you get started quickly. Not only are these open hardware, but we also have open-source software.

Highlight Features

Highly Integrated Design

  • MCU, LCD, WIFI, BT, IMU, Microphone, Buzzer, microSD Card, Configurable Buttons, Light Sensor, 5-Way Switch, Infrared Emitter (IR 940nm), Crypto-authentication Ready
  • Well-designed enclosure with built-in magnets and two mounting holes, allowing you to set up your IoT project without hassle

Powerful MCU - Microchip ATSAMD51P19

  • ARM Cortex-M4F core running at 120MHz (Boost up to 200MHz)
  • 4 MB External Flash, 192 KB RAM
  • Comprehensive Protocol Support
  • SPI, I2C, I2S, ADC, DAC, PWM, UART(Serial)

Reliable Wireless Connectivity

  • Powered by Realtek RTL8720DN
  • Dual Band 2.4Ghz / 5Ghz Wi-Fi (802.11 a/b/g/n)
  • BLE / BLE 5.0

USB OTG Support

  • Accessible Devices(as USB-Host): read data or signals from a mouse, keyboard, MIDI devices, Xbox/PS gaming controllers, 3D printers
  • Simulated Devices(as USB-Client): emulate a mouse, keyboard or MIDI devices to Host PC
  • When using USB Host/Client function, you can use the 40-pin on the back of Wio Terminal for power supply. Check here for detailed instructions.

Grove Ecosystem

  • 300+ Grove modules to explore with IoT
  • Two onboard multi-functional Grove ports can be used for Digital, Analog, I2C, and PWM
  • Note: To connect Grove with Wio Terminal, please use unbuckled grove cable.

Raspberry Pi 40-pin Compatible

  • Can be mounted to a Raspberry Pi as a slave device
  • Raspberry Pi's HAT can be used with an adapter cable

Software Support

What is ArduPy?

ArduPy is a combination of Arduino and MicroPython developed by Seeed. Check our Wiki and Github for more technical details

We wish to develop the ArduPy into a community-driven software and look forward to your participation. Join the discussion at our Forum!


  • Play retro game on Wio Terminal

What other cool things can you play with Wio Terminal?

  • Artificial Nose that can Discern Different Kinds of Rum or ScotchTV
  • Remote Controller
  • Cost-effective Pulse Oximeter
  • Weather Forecast Monitor
  • Run TinyGO on Wio Terminal
  • Printer
  • GPS Navigator
  • Water Level Detector
  • Machine Learning on Wio Terminal

And there are more possibilities on the way! Check Wio Terminal Community Project Collection and we hope some of them will inspire you!

Wio Terminal Classroom

In this show, our engineer Lakshantha will explain how to use Wio terminal along with the software and present you 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 with 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 product. 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!


  • Python Terminal Device
  • Data Collection Device for Machine Learning
  • Hand-held Device
  • Retro Gaming Device
  • IoT Controller
  • Education
  • Prototyping
  • Slave device / Accessories for Raspberry Pi

Pinout Diagram

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

Hardware Overview

Setup, Documentation, and Support

Please visit our wiki for more information about Wio Terminal. If you have any questions, feel free to ask us at our Forum.

Technical Specifications

Main Chip

Manufacturer Part Number


Core Processor

ARM® Cortex®-M4F

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, 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)


2 (Multifunction)



USB Type-C

Power & USB-OTG

Operation Interface

5-Way Switch

Power/Reset Switch

User-defined button *3






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 8471410150
CE 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.
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.
This hackster.io shows how to use Seeedstudio Wio Terminal to make a 2.4 GHz and 5 GHz dual-band WiFi analyzer. (Author: @moononournation)
Display a decibel meter on Wio Terminal with an accurate measurement!
Read the cycling speed, rotation speed and oil temperature, and other information, displayed on the Wio Terminal screen.
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.
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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  1. Rating
    Arrived 4 days after placing the order.
    The first time buying things from overseas and is more than satisfied! DHL delivery is a bit expensive but fast enough. Arrived 4 days after placing the order.
  2. Rating
    LCD, case, so many on-board modules, at the cost of only $29.9 - what can I ask for more?
  3. Rating
    Totally worth the price
    Nice little device. Totally worth the price!
  4. Rating
    like those little stickers
    Comes in well condition 3 days after purchasing, much faster than I thought it would be! Haven't used it yet but I like those little stickers
  5. Rating
    My second Wio Terminal!
    My second Wio Terminal. At 29.9 you got an all-in-one device with LCD, case, and so many add-ons and rich documents and support! SAY NO MORE.


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