Systems

Generate a dynamic hostname with Raspberry Pi

How to generate a dynamic hostname with Raspberry Pi

What is the hostname The hostname (hostname) is the name of a device within a network. This host name makes it possible to distinguish between devices on a local network and also allows computers to locate others, making it possible to…


Extract data from a CO2 sensor

Unlocking the 7722AZ CO2 Sensor. A data extraction guide

Because of the needs of one of our projects, we have to extract data from a CO2 sensor. We got this one, 7722 from AZ Instrument : This device is a simple CO2 sensor. It gives you a measure result each second. It measures too the…


Flashing Raspberry Pi

Flashing Raspberry pi Cm3

What is a Raspberry Pi? The Raspberry Pi is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote teaching of basic computer science in schools and in developing countries.…


Mosquitto installation & configuration

Step-by-step Mosquitto MQTT broker installation & SSL configuration

Once we know what is MQTT and how it works, as explained in this post, it's time to get down to work and install and set up all the software needed to let it work. Mosquitto MQTT broker installation 1. Installation within Windows OS This…


MQTT IoT communication

Understanding MQTT: The IoT messaging protocol explained

MQTT is the standard messaging and data exchange protocol for the Internet of Things (IoT). The MQTT protocol provides a scalable and cost-effective way to connect devices over the Internet. The use of MQTT focuses on delivering data over…