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…