Articles

IoT EM4305 RFID Reader

IoT EM4305 RFID Reader thumbnail
RFID tags come in various forms and sizes, from standard plastic cards to chips that can be implanted in one's hand. I got particularly interested in RFID rings, which can be purchased online for less than USD 20$. Those are based on EM4305 chips, which require a compatible reader. Thus, I designed an IoT EM4305 reader that can exchange data over MQTT with other devices.
IoTFeaturedESP8266Projects

Combining two independent git repositories

Combining two independent git repositories thumbnail
This article presents how to combine two independent and unrelated git repositories.
TutorialsGitDevOps

Wardrobe and outfits management web app

Wardrobe and outfits management web app thumbnail
Have you ever bought a piece of clothing only to come home and realize you already had a similar one in your wardrobe? This happened to me the other day so I decided to fix the problem. To do so, I designed a simple web application in which the user can keep track of all the garments they own.
Vue.jsMongoDBMongooseVuetifyWIP +3

Fixing "File locked" Nextcloud errors

When syncing files with NextCloud, some might get stuck in a "locked" state. Here is how to unlock them.
NextcloudKubernetes

OpenProject in Kubernetes

OpenProject is an awesome project management application that can be installed on one's own server. This makes it ideal for users who want to keep control over their data. However, at the time of writing this article, OpenProject does not yet provide installation methods for Kubernetes so I decided to write my own manifest files.
OpenprojectKubernetes

IoT Kernel

Over the years, I have written firmwares for various IoT devices such as lights, locks or heaters. Those firmwares would generally handle a common set of basic functions like managing wifi connection, serving a configuration web interface over HTTP or exchange MQTT messages. However, having to implement and maintain those functions for each individual firmware quickly became tedious work. Consequently, I decided to write a library to handle all those basic functions. This library is used as a base for IoT device firmwares, on top of which device-specific logic can easily be added.
ArduinoWIPESP8266IoT

Smart outlet setup

Smart outlet setup thumbnail
When used for the first time, the device will have no knowledge of what WiFi to connect to. Consequently, the smart outlet will generate its own, prefixed with the name <em>socket.</em>
IoT

TDD for an Express application

TDD has been proven to significantly reduce the amount of bugs in software releases. Moreover, with CI/CD systems, tests can be run automatically before the application deployment, preventing a faulty application to reach its end user. This guide goes through the steps required to set up a TDD workflow with an Express application.
DevOpsTDDWeb

File POSTer

File POSTer thumbnail
Many web applications rely on the upload of files from client to server via a POST request. The content-type of this request is generally multipart/form-data. When developing the server-side of such application, being able to quickly test the upload feature can greatly increase productivity. So, I designed this simple web application that can POST a file to any URL.
VuetifyProjectsWeb

Distributing a Helm chart on Artifact Hub

Distributing a Helm chart on Artifact Hub thumbnail
Building applications in a microservice architecture has become more and more popular recently. With this design pattern, an application is composed of multiple services that run independently and generally share data across network protocols.
KubernetesHelmWIPDevOps