Write the following code into a new Sketch in the WebIDE.
// Message to Post
charmsg="Hi, I'm a tweet from a Spark Core!";
// OAuth Key
#define TOKEN "OAuth"
// Twitter Proxy
#define LIB_DOMAIN "arduino-tweet.appspot.com"
client.println("POST /update HTTP/1.0");
Step 7: Token replacment
At the top of the code you’ll see a line called #define TOKEN “OAuth”. Replace the word OAuth with the long string you got in Step 1. (Be sure you keep the quotes around your OAuth string!)
Step 8: Save, Verify and Flash your code
Step 9: Check your twitter account
You can only send around one tweet per minute, so don’t run this code in the main loop!
Finally, let’s move to the last method using 1Sheeld with Arduino UNO, ths one is the easiet way, you only write 1 line of code!
Step 1: Adjust 1Sheeld
Warning! If you have the Arduino Due or any board that works on 3.3V, you must switch your 1Sheeld to operate on 3.3V since it may damage your board. To switch 1Sheeld to 3.3V locate the toggle switch on the top of the board and switch it to the 3.3V position.
Step 2: Place your 1Sheeld on your Arduino board then plug the Arduino to your laptop or PC
Step 3: Download 1Sheeld Application onto your smart phone. Our app is available on the Google play store at http://1sheeld.com/app
Step 4: Download 1Sheeld library
Download OneSheeld library to your computer through this link
Step 5: Extract the folder, copy it, and paste it in your Arduino libraries directory.
Step 6: Write your Sketch
Open the Arduino IDE on your computer, choose Twitter example from OneSheeld library.
/* Include 1Sheeld library. */
/* Start communication. */
Twitter.tweet("I'm tweeting from Arduino via 1Sheeld!");
// Put you own code here
Step 7: Upload your sketch
Here comes the most important part of the whole tutorial, switch 1Sheeld to the Uploading-mode (this is the switch labeled UART Switch on the board) before you upload your sketch to the Arduino board to avoid serial conflicts between 1Sheeld and Arduino, then press the Upload button in the IDE.
Upload mode is turned on when the UART switch is pushed away from the 1Sheeld logo.
Once you have completed your upload you need to switch 1Sheeld back to the operating mode. Don’t forget! If you don’t switch the UART Switch back to the operating mode your project will not work properly as you will have no communication between 1Sheeld and the Arduino board.
Operating mode is turned on when the UART switch is pushed closest to the 1Sheeld logo.
Step 8: Use 1Sheeld Application
Open 1Sheeld application on your Android smart phone. The application will first scan over bluetooth for your 1Sheeld, it will take a few seconds and the phone will find it. Once it appears on your screen as 1Sheeld #xxxx, you will be required to enter the pairing code (the default pairing code is 1234) and connect to 1Sheeld via bluetooth.
NOTE: If you are having trouble please make sure the bluetooth is turned on for your Android phone and that the Android phone is close to your 1Sheeld.
Step 9: Access Shields
Select the shields you would like to use in your Arduino sketch (project) and press on the multiple shields icon at the top right of the app.
In this case, use Twitter Shield then login using your account.
Now let’s compare between the 3 methods to choose the suitable method to use.
Size of Code
Arduino + Ethernet Shield
Actually 1 line of code 🙂
Here’s a tutorial video on how to post on Twitter with 1Sheeld:
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