Wio Link

Wio Link is an ESP8266 SoC based open-source Wi-Fi development board and associated platform to create IoT applications by virtualizing plug-n-play modules to RESTful APIs with mobile Apps. Wio Link is designed to simplify your IoT development, aims to make it easy to develop Internet of Things products and services. Using the Wio Link, developers are able to build IoT applications with no hardware programming, no breadboard, no jumper wires, and no soldering. Users can build IoT applications in three steps in about five minutes.

The ecosystem consists of Open Hardware Wio Link board, Open Source Wio Link Mobile App and Open Source IoT Server implementation. The board provides Grove connectors to easily interface with a variety of Grove modules. It also has on-chip power management for charging LiPo battery. The Mobile App has all the features to configure the board, to update firmware and to test/interact with application running on the board. The Server provides various infrastructure to connect the board to internet.


Application ideas


  • Input Voltage: MicroUSB: 5V; Battery holder: 3.4~4.2V;
  • Output DC Current: 1000mA MAX
  • Operating Voltage: 3.3V
  • Charge Current: 500mA MAX

Hardware Overview

Part Function
Digital Port 0 GPIO 14
Digital Port 1 GPIO 12
Digital Port 2 GPIO 13
Analog Port A3
UART Port Pin 1 & Pin 3
I2C Port Pin 4 & Pin 5
Status Indicator Blue LED is the WiFi status indicator, Red LED indicates the working status
Configure Button To configure and manage your Wio Link
JST2.0 Battery Interface
Micro USB To power the board or communicate to the PC
Reset Button To reset the MCU
Power Management Managing battery charging, etc
USB Bridge USB to UART bridge
Flash 4MB (W25Q32B)

Note: Please handle the USB micro type-B socket gently or you might break the socket off.

Connecting LiPo Battery

Note: Battery needs to be bought separately. The above battery belongs to a different main board. Use Bazaar site to find options available.

Get started

Let us build a very basic example with Wio Link platform. We will try to toggle one digital output pin of Wio Link board using "Generic Digital Output" API.

Step 1: Install Android/iOS App

You need to install the Wio Link App to manage and configure your Wio Link devices.

Download the Android or iOS App and install.

Note: Make sure your Android OS version is 4.1 or advanced, iOS version is 7 or advanced.

Step 2: Create your Wio Link Account

If you use the Android/iOS App for the first time, you need to sign up for an account.

1. Open Wio Link App

2. Click Sign-Up and Create a new user account

Note: We provide two server options -- China mainland and International. If you are from Mainland China, select China server. Others, select International server. Selecting the appropriate server based on your location will speed up your development.

Step 3: Connect Wio Link to WiFi AP

Step 4: Virtually interconnect modules with Wio Link

Step 5: Download firmware

Step 6: Test application using APIs

The LED or any other digital output actuator will toggle based on the Digital Value being sent.

A Video tutorial on using Grove Temperature Humidity Sensor and RGB LED strip with Wio Link

Let us see a more advanced tutorial. We will build a temperature and humidity monitor and light up the RGB Led strip with Wio Link.

Get started with IFTTT & DoButton

Before you get started with IFTTT & DoButton, make sure you have already connect Wio Link Account to Your IFTTT Account, if you don't, click here to connect them.


The video below shows how to make an Automatic Gardening irrigation without coding using IFTTT & Wio Link


If you want to make one please click here to get more info about this project.


The video below shows how to make a remote dog feeder with DoButton & Wio Link.


If you want to make one please click here to get more info about this project.

Advanced User Guide

Read Advanced User guide here. This guide covers:

Wio Projects

Wio Link based project Recipes


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