![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/featured-image.png?resize=699%2C525&quality=100&strip=all&ssl=1\")
<\/p>\nIn this project\u00a0you\u2019re going to post a Tweet with\u00a0an ESP8266. The goal of this project is\u00a0to show the endless possibilities that this\u00a0$4 WiFi module offers when integrates with a free\u00a0platform that I’m about to show you.<\/p>\n
<\/p>\n
In order to accomplish this task you have to sign up for one free service called IFTTT which stands for \u201cIf This Then That\u201d.<\/p>\n
IFTTT is a platform that gives you creative control over dozens of products and apps.<\/p>\n
You can make apps work together. For example when you send a request to IFTTT, it triggers a recipe that sends you an email alert.<\/p>\n
Before continue reading this project, please complete\u00a0the following tutorials:<\/p>\n
If you like the ESP and you want to do more projects\u00a0you can read my eBook Home Automation using ESP8266 here<\/a>.\u00a0Let’s get started!<\/strong><\/p>\n Creating an account on IFTTT is free!<\/p>\n Go the official site: https:\/\/ifttt.com\/<\/a> and click the \u201cSign Up\u201d button in the top of the page.<\/p>\n Complete the form with your personal information (see Figure below) and create your account.<\/p>\n After creating your account, follow their getting started tutorial.<\/p>\n I\u2019ve created an Applet that integrates perfectly in this project and you can also use it.<\/p>\n If you\u2019re logged in at IFTTT and you open this URL below to use my Applet instantly:<\/p>\n Press the \u201cTurn on\u201d button:<\/p>\n Next, you need to grant access permissions to Maker Webhooks and Twitter.\u00a0Let your IFTTT account connect to your Twitter account. A new page loads when you finish connecting your Twitter.<\/p>\n Fill the Applet with your own information. Follow these instructions:<\/p>\n Now, go to this URL: https:\/\/ifttt.com\/maker_webhooks<\/a>\u00a0and open the \u201cSettings<\/strong>\u201d tab.<\/p>\n Copy you secret key to a safe place (you\u2019ll need them later in this project). In my example my secret key is: b6eDdHYblEv2Sy32qLwe<\/em><\/strong><\/span><\/p>\n Let\u2019s test if your request is working properly. Replace YOUR_API_KEY from the following URL:<\/p>\n https:\/\/maker.ifttt.com\/trigger\/post_tweet\/with\/key\/YOUR_API_KEY<\/strong><\/span><\/p>\n With your API KEY:<\/p>\n https:\/\/maker.ifttt.com\/trigger\/post_tweet\/with\/key\/b6eDdHYblEv2Sy32qLwe<\/strong><\/span><\/p>\n Open your URL with your API KEY in your browser.<\/p>\n You should see something similar to the preceding Figure. Then go to your Twitter\u00a0and a new Tweet\u00a0should be there!<\/p>\n If you like Twitter, you can follow me there @RuiSantosdotme<\/a>\u00a0for news related to electronics.<\/p>\n Here’s the hardware that you need to complete\u00a0this project:<\/p>\n You can use the preceding links or go directly to MakerAdvisor.com\/tools<\/a> to find all the parts for your projects at the best price!<\/p> The schematics for this project are very straight forward. You only need to establish a serial communication between your FTDI programmer and your ESP8266 to upload some code.<\/p>\n I recommend using the ESPlorer program created by 4refr0nt\u00a0to create and save Lua files into your\u00a0ESP8266.<\/p>\n Follow these instructions to download and install ESPlorer:<\/p>\n Don’t forget that first you need to flash your ESP with NodeMCU firmare<\/a>. Copy and paste the code below into ESPlorer. Then edit line 5 with your network credentials and line 13 with your API KEY.<\/p>\n View raw code<\/a><\/p>\n When you open the ESPlorer you should see a window similar to the preceding Figure, follow these instructions to send commands to your ESP8266: Connect your FTDI programmer to your computer<\/p>\n Then you simply click the button\u00a0Send to ESP. <\/strong>And you should see a\u00a0a print saying “Posted Tweet” in the ESPlorer window.\u00a0<\/strong>Everything that you need to worry about or change is highlighted in red box in the following Figure.<\/p>\n Twitter doesn’t allow you to post the same tweet over and over again. So you can use the following script (by changing line 5 with your network credentials and line 13 with your API KEY) to add parameters to your POST request.<\/p>\n In my example below I’m using the parameter “value1” and sending the value “True”. IFTTT supports three parameters called “value1”, “value2” and “value3” to customize your Tweets and make them unique.<\/p>\n View raw code<\/a><\/p>\n In your POST request make sure you set the right “Content-Length” in my case it’s “17”, but if you change the “value1” or you add more parameters to your body request the “Content-Length” also changes. If you make a request with the wrong Content-Length it will fail.<\/p>\n With this concept\u00a0in mind you can post data from your sensors (like temperature, humidity, etc) directly to Twitter using the ESP.<\/p>\n Here’s the end result:<\/strong><\/p>\n Thanks for reading. If you like this post probably you might like my next ones, so please support me by subscribing my blog<\/a> and my\u00a0Facebook Page.<\/p>\n","protected":false},"excerpt":{"rendered":" In this project\u00a0you\u2019re going to post a Tweet with\u00a0an ESP8266. The goal of this project is\u00a0to show the endless possibilities that this\u00a0$4 WiFi module offers when integrates with a free\u00a0platform … <\/p>\nCreating Your IFTTT Account<\/h3>\n
![\"signup\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/signup.png?resize=640%2C561&quality=100&strip=all&ssl=1\")
<\/p>\nOpen the\u00a0Applet<\/h2>\n
\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/turn_applet_on.png?resize=320%2C525&quality=100&strip=all&ssl=1\")
<\/p>\n![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/configure.png?resize=346%2C659&quality=100&strip=all&ssl=1\")
<\/p>\nComplete the\u00a0Applet<\/h2>\n
\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/configure-2.png?resize=345%2C607&quality=100&strip=all&ssl=1\")
<\/p>\n![\"\"](\"https:\/\/i1.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2016\/02\/settings-tab.png?resize=826%2C320\")
<\/p>\n![\"\"](\"https:\/\/i1.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2016\/02\/copy-ifttt-api-key.png?resize=525%2C406\")
<\/p>\nTest Your\u00a0Applet<\/h2>\n
![\"browser\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/browser.png?resize=671%2C382&quality=100&strip=all&ssl=1\")
<\/p>\n![\"tweet_with_esp8266\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/tweet_with_esp8266.png?resize=563%2C80&quality=100&strip=all&ssl=1\")
<\/a><\/p>\nParts List<\/h2>\n
\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/01\/ESP01v0.jpg?resize=224%2C224&quality=100&strip=all&ssl=1\")
![](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/10\/header-200.png?w=1200&quality=100&strip=all&ssl=1\")
<\/a><\/p><\/a><\/p>\nSchematics (3.3V FTDI\u00a0Programmer)<\/h2>\n
![\"ESP-Bitcoin-price_bb\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/03\/ESP-Bitcoin-price_bb.png?resize=588%2C216&quality=100&strip=all&ssl=1\")
<\/p>\nDownloading ESPlorer<\/h2>\n
\n
![\"esplorer](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/02\/esplorer-start.png?resize=424%2C316&quality=100&strip=all&ssl=1\")
<\/p>\nWriting Your Lua Script<\/h2>\n
-- Rui Santos\n-- Complete project details at http:\/\/randomnerdtutorials.com\n\nwifi.setmode(wifi.STATION)\nwifi.sta.config("YOUR_NETWORK_NAME","YOUR_NETWORK_PASSWORD")\n\n-- A simple http client\nconn = nil\nconn=net.createConnection(net.TCP, 0)\nconn:on("receive", function(conn, payload) end)\nconn:connect(80,"maker.ifttt.com")\nconn:on("connection", function(conn, payload)\nconn:send("POST \/trigger\/post_tweet\/with\/key\/YOUR_API_KEY HTTP\/1.1\\r\\nHost: maker.ifttt.com\\r\\nConnection: keep-alive\\r\\nAccept: *\/*\\r\\n\\r\\n") end)\nconn:close()\nprint('Posted Tweet')\n<\/code><\/pre>\n\tUploading Your Lua Script<\/h2>\n
\n
![\"esplorer_IDE\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/esplorer_IDE.png?resize=872%2C502&quality=100&strip=all&ssl=1\")
<\/p>\nLimitations and Taking it Further<\/h2>\n
-- Rui Santos\n-- Complete project details at http:\/\/randomnerdtutorials.com\n\nwifi.setmode(wifi.STATION)\nwifi.sta.config("YOUR_NETWORK_NAME","YOUR_NETWORK_PASSWORD")\n\n-- A simple http client\nconn = nil\nconn=net.createConnection(net.TCP, 0)\nconn:on("receive", function(conn, payload) end)\nconn:connect(80,"maker.ifttt.com")\nconn:on("connection", function(conn, payload)\nconn:send("POST \/trigger\/post_tweet\/with\/key\/YOUR_API_KEY HTTP\/1.1\\r\\n"..\n "Host: maker.ifttt.com\\r\\nConnection: close\\r\\nAccept: *\/*\\r\\nContent-Type: application\/json\\r\\n" ..\n "Content-Length: 17\\r\\n\\r\\n{\\"value1\\":true}\\r\\n") end)\nconn:close()\nprint('Posted Tweet')\n<\/code><\/pre>\n\t![\"twitter_ifttt_value1\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2015\/08\/twitter_ifttt_value1.png?resize=565%2C81&quality=100&strip=all&ssl=1\")
<\/a><\/p>\nDo you have any questions?\u00a0Leave a comment down below!<\/h4>\n