Internet of Things – Control Sensors

Today I will talk about how you can publish sensor data depending on a threshold and control a sensor using an MQTT broker. I will publish information to the MQTT broker about the light depending on a threshold, and also show how the threshold can be changed using a subscription on the MQTT broker. In…

Internet of Things – Publish Sensor Data

Today I will talk about how you can publish your sensor data to an MQTT broker. I will publish information about the temperature and level of light in my room, but the same approach can be used to publish any sensory data. By publishing the sensor data using an MQTT broker, the information can be…

Internet of Things – Why You Need MQTT

Today I will talk about what MQTT is and why you need it in your solutions for the Internet of Things. After a comparison with HTTP, I will go through how MQTT works and what benefits it brings. With the Internet surviving for such a long time using the HTTP protocol, you might ask yourself…

Internet of Things – Sensors

Today I will show you how to capture information about the environment with sensors. In this lab, I will be detecting the temperature and amount of light, but the same approach can be used with a wide range of sensors. In previous videos I have demonstrated how a microcontroller, like an Arduino, can be used…

Internet of Things – Like Lamp

Today I will show you how to control anything that is powered with normal electricity. To make it simple, I will build on my previous example of making a LED blink each time someone gets a like on Facebook, but this time I will make a normal lamp blink instead. Let me start off with…

Internet of Things – Like Blink

Today I will show you how to make the basic example of Internet of Things from my previous video (“Internet of Things – Getting Started”) more interesting by putting some Internet into the mix. This time, I will make the LED blink each time someone gets a like on Facebook. All the hardware that you…

Internet of Things – Getting Started

Today I will show you how you can get started with the Internet of Things, and I will do it using the open source hardware platform Arduino. I will use the Arduino Yún board, but the setup I will show works with most of the original Arduino boards as well as compatible versions by other…

Create App Design Guidelines

Today I will talk about why you should and how to create app design guidelines. Just as organizations create visual identity guidelines and even design guidelines for their web sites, it’s a good idea to create app design guidelines for their apps. All organizations have visual identity guidelines (even if they are sometimes called something…

Building Dynamic Apps

Today I will talk about how you should always try to make your mobile apps as dynamic as possible. This actually applies to all IT solutions, but is especially relevant for apps as they often need to support multiple platforms and are not possible to update instantly. First of all, when you’re about to implement…