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.

Features

No hardware programming or No breadboard or No jumper wires or No soldering required.
A lot of Grove modules are supported (Check the list in Mobile App).
Plug-n-Play Grove Modules
Visual configuration instead of microcontroller programming.
Update automatically via cloud compiling and OTA.
Bring Realworld to Virtual platform. All sensors become virtual RESTful API.
Android & iOS Apps to manage Wio Link.
IFTTT supported by Seeed's Channel

Application ideas

Smart Home
Intelligent environmental monitoring
Funny Toys
Web of Things
Internet of Things

Specification

Wi-Fi Network Protocol: 802.11b/g/n
Wi-Fi Encryption Technologies: WEP/TKIP/AES
Expansion (6x Grove Connectors): 3x Digital, 1x Analog, 1x UART and 1x I2C (3.3V I/Os)
Power Supply:

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

Flash Memory: 4MBytes (W25Q32B)
Size: 55mm * 48mm
Weight: 26g
CE/FCC/IC Certified
Crystal: 26MHz

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
MCU	ESP8266
Flash	4MB (W25Q32B)

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

Connecting LiPo Battery

Wio Link has an inbuilt LiPo battery charger. Use a suitable 3.7V LiPo battery equipped with JST 2.0 connector to charge and use.

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

Hold the left side CONFIG button down until the blue LED turns into breathing mode (i.e. blinking with fade in & fade out effect). This puts the Wio Link board into configuration mode and it is available for Wio Link App

Tap + button to start

Click + button next to "Setup Wio Link"

Click "GOT READY" on your phone

Connect your phone to the Wio Link AP

Connect Wio Link to the WiFi AP around you and give it a name

Step 4: Virtually interconnect modules with Wio Link

Plug a Grove - LED or any other Grove module that can be controlled with Digital Output. Drag "Generic Digital Output" module and Drop it onto "Digital0" interface
Connect Grove - LED to Wio Link as follows

Step 5: Download firmware

Click "UPDATE" button. The App will interact with Server, build the new firmware based on the Grove modules interconnection with Wio Link. Then, it uploads firmware to Wio Link. It also notifies of the successful firmware update.

Connect a Grove-LED or any other module that can work with Digital Output to "Digital 0" Grove connector of Wio Link.

Step 6: Test application using APIs

Click "API" button. Scroll down. Send 1 or 0 using POST method:

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

You have successfully configured and executed your first Wio Link application.

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.

Plug Grove Modules to the Wio Link and Drag the Grove Modules to the Grove Connects in the App

Finally, click "UPDATE" on the top-right corner in the APP, after "Update Ok",then see the APIs of your device, and have a try to light up the LED strip.

See the full steps as a Video

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.

IFTTT

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

https://vimeo.com/148590984

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

DoButton

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

https://vimeo.com/146988454