Articles

DWC hydroponics system

DWC hydroponics system thumbnail
I am not much of a cook so salads are usually one of my favorite options for a healthy meal. So, just like for everything else, I started wondering if I could make my own. However, I don't have access to a garden so I started looking into solutions to grow vegetables indoors. I settled for hydroponics, which seemed to provide a good balance between yield and operational hassle. Specifically, I went for a Deep Water Culture type of hydroponic system as it is usually considered easy for beginners to setup.
FeaturedHydroponicsProjects3D printingElectronics +1

DHT and PIR sensor module

DHT and PIR sensor module thumbnail
This project consists of an HC-SR501 PIR motion sensor and a DHT22 temperature and humidity sensor connected to a Wemos D1 mini, an ESP8266 breakout board.
ESP8266ElectronicsProjectsIoT

Credit card transactions web scraper

Credit card transactions web scraper thumbnail
The company behind my credit card provides a web interface which includes a log of the transactions that have been made. The objective of this project is to automatically retrieve this log everyday and store its data in a database so as to display it on a custom dashboard.
ProjectsPuppeteer

Creating a private docker registry for Kubernetes

A docker registry can be run easily using as a docker container using docker itself.
DevOpsKubernetesDocker

Countries tracker

Countries tracker thumbnail
Nagoya Global Friends is an international community in Nagoya whose events gather people from all over the worlds. In order to visualize the various countries represented, I designed a simple Firebase application. The application allows users to register their home country, which gets stored in a Firestore database.
FirebaseProjectsSvelte

Cookies

Cookies are key-value pairs stored on a web browser. They can be set (i.e. created) using client-side JavaScript. Conversely, a server can get a client's browser to set cookies via instructions in an HTTP response. As such, cookies can be set by both the client and the server.
TutorialsSecurityCookies

Cookie-session

User authenticates using username and password, server sets a signed cookie containing serialized user info
SecurityTutorialsCookies

Controlling a motor using an H bridge

Controlling a motor using an H bridge thumbnail
A DC motor model can be as simple as: T = K * I where T is the torque provided by the motor, K the motor constant and I the current that flows through it. From this simple model, one can see that if the sign of the current changes, that of the torque also changes. Thus, changing the direction of rotation of a DC motor is a simple as reverting flow into it.
TutorialsMechatronicsElectronicsMotor

Control IoT devices with a Xiaomi Mi Band 2

Control IoT devices with a Xiaomi Mi Band 2 thumbnail
Smartwatches can be rather expensive and tend to be known for their poor battery life. On the other hand, Xiaomi's Mi band 2 is cheap and its battery lasts for up to 20 days. However, the Mi band 2 is mainly limited to fitness tracking functions, at least without the appropriate apps.
ProjectsIoTMQTT

Containerization of a Flask application

Flask can be seen as the equivalent of Express for Python. However, although an express application is basically production ready, a Flask app outputs the following when executed by itself:
TutorialsDevOps