{"id":14673,"date":"2016-05-24T15:18:24","date_gmt":"2016-05-24T07:18:24","guid":{"rendered":"http:\/\/www.seeedstudio.com\/blog\/?p=14673"},"modified":"2018-10-19T10:27:54","modified_gmt":"2018-10-19T02:27:54","slug":"getting-started-with-wio-link-starter-kit-visual-programming-android-app-and-ifttt","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2016\/05\/24\/getting-started-with-wio-link-starter-kit-visual-programming-android-app-and-ifttt\/","title":{"rendered":"Getting Started with Wio Link Starter Kit, Visual Programming Android App, and IFTTT"},"content":{"rendered":"

It’s a getting started review provided below, which is written by CNX- Software<\/a>\u00a0post on\u00a0cnx-software.com<\/a>. For more information, please head over to www.cnx-software.com<\/a>.<\/p>\n

Wio Link<\/a> is a board based on on ESP8266 WiSoC that supposed to be easy to setup thanks to Grove modules \u2013 no breadboard and mesh or wires \u2013 and, as I first understood it, to program thanks to a drag and drop mobile app that does not require any actual programming. More advanced users can also use a RESTful API in Python, JavaScript, Node.js<\/span>, PHP, Objective-C or Java. I\u2019ve been sent a $49 Wio Link Starter Kit<\/a> including the board, a USB cable, and six Grove modules to evaluate the kit. I\u2019ll start by have a look a the kit, before experimenting with Wio Link Android app.<\/p>\n

Wio Link Starter Kit Unboxing<\/h2>\n

The kit is sent in a red plastic case.<\/p>\n

\"Wio_Link_Starter_Kit_Case\"<\/a><\/p>\n

 <\/p>\n

Wio Link board is lodged in the top covers, and other accessories placed in bags in the main part of the case.
\n\"Wio_Link_Starter_Kit_Content\"<\/a><\/p>\n

Let\u2019s check the board first.<\/p>\n

\"Wio_Link_Board\"<\/a><\/p>\n

 <\/p>\n

There are three main ICs: ESP8266EX WiFi SoC, Silabs CP2102 USB to TTL chip for programming the board, and Winbond 25Q23BVIG serial flash memory<\/a> (4MB). On the right side, the micro USB port is used for power and debugging, a header can be used for battery power, and Config and Reset buttons are present. The six Grove connectors can either take digital (3) modules, analog (1) modules, I2C (1) modules, or UART (1) modules.
\n\"ESP8266_Board_Open_Source_Hardware\"<\/a><\/p>\n

The bottom side of the board does not any components, and the only noticeable parts are Seed Studio and Open Source Hardware logo, as well as http:\/\/iot.seeed.cc<\/span> which point to documentation and forums for the board.
\n\"Wio_Link_Grove_Modules_Starter_Kit\"<\/a><\/p>\n

Once I\u2019ve taken everything out of the small bags, we can see the fully kit content with Wio Link board, a micro USB port, and from top left to bottom right, six Grove modules and their cables: WS2812 LED strip (25 LEDs), temperature and humidity sensor, button, digital light sensor, 3-axis digital accelerometer, and a relay module.
\n\"Grove_Module_Markings\"<\/a><\/p>\n

If you have many Grove module, it may not always be easy to know which one does what, but the Grove module is printed on the silkscreen on the back the board.<\/p>\n

Wio Link Android App<\/h2>\n

Wio \/ Wio Link app is available for both Android 4.1+<\/a> and iOS 7+<\/a>, and I tested the board with the Android app, following some of the instructions on the Getting Started Guide<\/a>.<\/p>\n

\"Wio_Link_App_Setup\"<\/a><\/p>\n

The first step is to login or create an account with your email, before setting up Wio Link, or the small and soon-to-be released Wio Node<\/a>.
\n\"Wio_Link_WiFi_Setup\"<\/a><\/p>\n

At this stage, I had to power Wio Link board. I did so by connecting Wio Link to one of the port my USB hub<\/a>, and I noticed the red LED would blink very fast, but pressing on the Config button as instructed in the app would not do anything, and Wio Link was not detected at all. So I changed to a proper 5V\/2A power supply, and the red LED was steady, with the green LED in the middle of the board slowly blinking, and after pressing the Config button for about 4 seconds, the blue TURN lit up. So if the board does not work, try another power supply. The USB cable<\/a> should be OK, as it\u2019s shipped with the board.<\/p>\n

After that you can select Wio (WioLink_XXXXXX), select an access point (AP) to connect the board to the Internet, and give your board a name \u2013 I went with cnxwio \u2013 to complete the setup.<\/p>\n

\"Wio_Link_Grove_Module_Android_App\"<\/a><\/p>\n

Then you can select module on the bottom, the app will show you where you can drag and drop it (Digital. Analog, UART, or I2C), and then repeat the same process with the other modules.\u00a0 I had the idea of making a demo reporting the temperature and humidity, while turning off the LED strip with the accelerometer, and turning it on with the button module, so I connected the four modules in the app and in \u201creal life\u201d.<\/p>\n

\"Wio_Link_LED_Strip\"<\/a><\/p>\n

Once you are happy with the setup, tap on Update <\/em>to flash the firmware to the board. This should take a few seconds. At this stage I was expecting to be able to do some more visual programming, but all you can do is tap on API to get the API info, and experiment with the API. So rather than a complete programming solution, Wio app is an help for program development.<\/p>\n

\"Wio_Link_WiFi_Setup\"<\/a><\/p>\n

The three screenshots above show the list of Wio Link boards and their connected modules, and one API call to control the LED strip, namely to make it \u201cblink in a rainbow flow\u201d. You can also share the API by email or other method to get the API calls on your computer and get on with programming. This is the list of API calls<\/a> I got with the four modules. You can simply use the command link in a Linux computer (or now Windows Subsystem for Linux<\/a>) to monitor and control the board with curl. You can also use Python or other programming languages to use the API, as show in wio_link_execute.py<\/a> that controls a traffic light.<\/p>\n

But for the purpose of this review, I did not want to write code, only use graphical tools or app, so my next option was IF by IFTTT app<\/a>.<\/p>\n

\"Wio_Link_IFTTT_Setup\"<\/a><\/p>\n

Right after\u00a0 you start the app, tap on the top right icon to Browse recipes, select \u201cCreate a New Recipe<\/em>\u201c, tap on \u201c+\u201d\u00a0 (Start Here!) icon, and search for Seeed trigger. The first time you\u2019ll be redirected to login to Seeed Studio \u2013 which the password created at the beginning of this tutorial \u2013 in your browser, and once it\u2019s done you\u2019ll be able to \u201cMonitor a sensor value\u201d, select one action related to the sensors connected to Wio Link, and complete the trigger. I wanted to detect when the button is pressed (The value should be 0 when pressed) on the Grove module. There\u2019s a big caveat doing this, but more on that later.<\/p>\n

\"Wio_Link_IFTTT_Trigger\"<\/a><\/p>\n

Now click Next to select the \u201cThat\u201d step, and again search for Seeed to select one of the \u201cActions\u201d, and configure it. I wanted to turn on the LED strip, and selected \u201clight up Grove WS2812 LED strip\u201d and \u201cRandom Rainbow\u201d, before pressing on Finish to complete the action.<\/p>\n

\"Wio_Link_IFTTT_Action\"<\/a><\/p>\n

That\u2019s all good, except for one detail. It did not work, as pressing the button had not effect. After configuring the accelerometer to turn off the LED strip, I started to receive notifications every 2 to 5 minutes about the \u201cshaked\u201d status. So I went to recipe, modified it to turn on the LED when the accelerometer is shaken, and press the Check Now button to verify it, and the LED strip indeed lit up. So unless I\u2019ve somehow missed an important option, that meant IFTTT is not suitable for my use case, because everything is handled from the cloud, and it\u2019s not \u201cpolling\u201d the sensors quite often enough.\u00a0 However, If you want to monitor the temperature sensor, and take an action if the temperature rise above a threshold, that\u2019s perfectly usable as long as it can be taken within a few minutes.<\/p>\n

\"Wio_Link_Gmail_LED_Strip\"<\/a><\/p>\n

As one last experiment, I set the LED strip to turn on each time I receive a new email in my gmail account. It did not work for the first email, even after waiting a few minutes (5+ minutes), and then pressing \u201cCheck Now\u201d. So I sent another email, waited one or two minutes without results, and pressed \u201cCheck Now\u201d again, and the LED strip finally turned on.<\/p>\n

So the takeaway is that Wio Link app does make setting up the board easier, and also provide an easy to use reference to the API after the configuration, but it\u2019s not a pure visual programming app per se, and you\u2019ll need to write your own program using the RESTful API. Alternatively IFTTT app can be used to control the board using triggers from the Internet (Facebook, twitter, emails, \u2026.) or sensors from the Grove module, and the app then take actions using the Grove modules such as relays or LED strips, but there are some limitations to what can be done, and my experience with IFTTT and Wio Link was mixed.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

It’s a getting started review provided below, which is written by CNX- Software\u00a0post on\u00a0cnx-software.com. For<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"iawp_total_views":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14673","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"\nGetting Started with Wio Link Starter Kit, Visual Programming Android App, and IFTTT - Latest News from Seeed Studio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.seeedstudio.com\/blog\/2016\/05\/24\/getting-started-with-wio-link-starter-kit-visual-programming-android-app-and-ifttt\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Getting Started with Wio Link Starter Kit, Visual Programming Android App, and IFTTT - Latest News from Seeed Studio\" \/>\n<meta property=\"og:description\" content=\"It’s a getting started review provided below, which is written by CNX- Software\u00a0post on\u00a0cnx-software.com. 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