DIY projects

DIY smart home project. Build your smart relay with ESP32 and Arduino Cloud

Welcome to our DIY guide on building a Smart Relay for home automation using an ESP32 and a relay module board! In this post, we’ll walk you through each step—from gathering components to setting up the Arduino Cloud and uploading your…


Build a smart audio streamer with Raspberry Pi and Volumio

Smart Audio Streamer with Raspberry Pi & Volumio

This project allows us to add "Smart" functions to an amplifier or amplified speakers that do not have these options. Normally the streamers are expensive or do not include as many options as we would like. Or are we simply seeking for a…


Network monitor server with Raspberry Pi and Nagios

Build a Raspberry Pi enterprise monitoring server with Nagios

What are we going to do? We are going to turn our Raspberry Pi into a network monitoring center, to have control over our network services. To do this we are going to use the Nagios program, which is a software that provides great…


Build a Raspberry Pi cluster

Build your Raspberry Pi cluster and unlock distributed computing

Our colleagues at Raspberry bring us a great tutorial about setting up your own SBC ARM cluster: We are going to remember the steps used to unify a cluster of Raspberry cards from the original post, but it has helped us to develop our own…


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…


What Is an MQTT Broker

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

In this article, we’ll explore what an MQTT broker is, its purpose, and how it works. In this previous article, we introduced and discussed the MQTT protocol itself—what it is and what it’s used for. Now, we’ll take a further step by…