Published August 23, 2018 © GPL3+

Move a Flag When You Receive a Comment on Twitter!

The flag moves when #keyword is tweeted. Integration of Twitter and obniz is easy to do. Move the flag when you've got a tweet.

BeginnerFull instructions provided4 hours622

Things used in this project

Hardware components

Cambrian Robotics obniz

Adafruit Servo motor

Flag

Battery or USB adaptor & cable

Software apps and online services

Twitter

Story

The flag moves when someone tweets #obniz. You can change #obniz to yours and move the flag when you've got a tweet of your own keyword.

Step 1: Setting Up obniz

To set up obniz, all you need to do is to follow three steps.

Connect obniz to WiFi.

Connect devices like LED or motors to obniz.

Scan QR code of obniz and start programming. You do not need to install any software.

Step 2: Connect obniz to Servo Motor

Connect obniz and a servo motor as below.

Step 3: Make a Flag

You can make your own flag and attach it to the servo motor.

Step 4: Program

Write the program in the code section and run! If you wan to change the keyword, you can change #obniz to yours.

What Is obniz?

obniz is a cloud-connected IoT development board. You can program on the web browser of anysmartphone or computer and the command is sent to obniz through the internet via obniz cloud. By connecting the obniz to the cloud through WiFi, users can remotely control devices that are physically connected to obniz.

obniz has 12 IO and WiFi-BLE module. It can be controlled through the APIs – REST or WebSocket API – on obniz cloud. Not only simple IO on/off but also UART, I2C, BLE etc can be used by remotely controlling obniz via internet. All you need to do to connect obniz Is to input unique ID by scanning QR code. Complicated processes are done by obniz and its cloud. You can just start programming in HTML, browser and circuit have already been integrated. If you write a program to collect sensor values, you can make a chart of the values easily.

In terms of hardware, every IO can drive up to 1A with overcorrect protection, therefore high current demanding devices such as motors can be directly connected to obniz IO. GPIO and AD can be used on every IO. UART, SPI etc peripherals can be assigned to every IO.Even output voltage 3v/5v can be changed by software. Most electrical parts can be connected directly. Embedded parts such as switch, OLED display, and BLE are ready for use on program.

Code

Program

// Nodejs

var Obniz = require('obniz');
var Twitter = require('twitter');

var obniz = new Obniz("0000-0000");
 
obniz.onconnect = function(){
  var servo = obniz.wired("ServoMotor", {signal:0,vcc:1, gnd:2});
  servo.angle(10);
}
 
var client = new Twitter({
  consumer_key: '<ConsumerKey>',
  consumer_secret: '<Secret>',
  access_token_key: '<TokenKey>',
  access_token_secret: '<TokenSecret>'
});
 
var stream = client.stream('statuses/filter',  {track: '#obniz'});
stream.on('data', function(event) {
  if (event) {
    var count = 0;
    var angles = [10,50,10,50,10,50,10]
    var timer = setInterval(function(){
      count++;
      servo.angle(angles[count]);
      if (count >= 6){
        clearInterval(timer);
      }
    }, 1000);
  }
});

Credits

obniz developer team

80 projects • 35 followers

Development board "obniz" is controlled via the internet.

Contact

Comments

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Move a Flag When You Receive a Comment on Twitter!

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Setting Up obniz

Step 2: Connect obniz to Servo Motor

Step 3: Make a Flag

Step 4: Program

What Is obniz?

Schematics

wired_HcnAELH2Oj.png

Code

Program

Credits

obniz developer team

Comments

Embed the widget on your own site

Move a Flag When You Receive a Comment on Twitter!

Move a Flag When You Receive a Comment on Twitter!

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Setting Up obniz

Step 2: Connect obniz to Servo Motor

Step 3: Make a Flag

Step 4: Program

What Is obniz?

Schematics

wired_HcnAELH2Oj.png

Code

Program

Credits

obniz developer team

Comments

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