Présentation
Cliquez sur un article pour en lire l'intégralité. Les projets rédigés en anglais sont également montrés et indiqués. Revenez régulièrement pour découvrir de nouvelles inventions.
Radio Astronomy Basics ( Anglais)Électronique - 07-09-2020
Radio astronomy is the study of celestial objects at radio frequencies. An amateur astronomer with a very simple and inexpensive setup can perform some interesting measurements. This article describes my Ku band setup and some experiments we can do with it.
Hairpin filter design ( Anglais)Électronique - 05-07-2020
Electronic filters are circuits which remove unwanted frequency components from the signal to enhance wanted ones. The hairpin topology is a microstrip band-pass filter for the gigahertz band (UHF). They can be very useful with SDR to improve the reception. This article features a Javascript generator for these. It also shows their design and my results.
Irish Whistle Tab - Android app ( Anglais)Informatique - 24-05-2020
Irish Whistle Tabs is an open-source Android app to learn to play the tin whistle. It features hundreds of traditional Celtic tunes (jigs, reels, polkas, ballads, etc.). In this article, I showcase my app, and go into more technical details on the inner working.
Acoustic beamsteering with a speaker array ( Anglais)Électronique - 14-03-2020
Beamforming is a signal processing technique to get a directionnal signal transmission from an array of emitters. By controlling the relative phase and amplitude difference between the elements, we can shape the emission/reception pattern according to our needs. For this project, I designed, built and measured a phased linear array of speakers.
Breaking Passwords with a Microphone ( Anglais)Informatique - 27-12-2019
Each key on a keyboard makes a slightly different, unique sound. In this article, I explore the possibilty of extracting keypresses and passwords from audio recordings using digital signal processing and machine learning with a Python proof-of-concept script.
Reaction Wheel Attitude Control ( Anglais)Électronique - 28-11-2019
Reaction wheels are a way for spacecrafts such as the Hubble Space Telescope to achieve 3-axes attitude detumbling and control. It uses the conservation of angular momentum. For this project, I made a model of a satellite with a reaction wheel to demo the effect and play with the parameters/control algorithm.
Shablocks - Electronic modular lab ( Anglais)Électronique - 22-09-2019
Shablocks is a modular and compact electronic lab system. It is made of open-hardware blocks: variable power supply, oscilloscope, component tester, etc. Everything can be assembled on the go to fit your needs.
OpenEMG Arduino Sensor ( Anglais)Électronique - 18-06-2019
Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles. OpenEMG is a project I started to make an open-hardware, easy to make, EMG module to capture muscle information from Arduino or any other micro-controller.
Electromagnetic interference mapping ( Anglais)Informatique - 22-04-2019
Mapping near-field electromagnetic parasitic emissions is useful for the design, debug and pre-compliance testing of electronic devices. Unfortunately, there is no simple way to make EM scans with sufficient level of details/accuracy, speed and reasonable cost. Hence, I developed this solution to make high-resolution and fast 2D maps of RF EMI for PCBs and more.
3D-printed prosthetic hand ( Anglais)Électronique - 06-04-2019
The human hand is made up of a total of 27 individual bones connected by joints and ligaments, and operated by muscles situated in the hand and wrist. This project's objective is to mimic it and build an open-harware fully 3D-printed prosthetic hand.
AI astronomy pictures processing ( Anglais)Informatique - 08-03-2019
Digital image processing can be used to remove noise and signal distortion from pictures. It is particularly useful for astronomy, as the details are faint and often blurry. The objective of this project is to define an artificial neural network (ANN) and train it with machine learning to take several noisy, convoluted astronomy pictures and output a single processed photograph.
EDF motor design ( Anglais)Électronique - 19-02-2019
Electric ducted fans (EDF) are an efficient way of producing thrust for an aircraft. However, there are a lot of variables that can be fine tuned to optimize their performance: body curves, fan blade pitch, duct length, number of fan blades, etc. Using both simulation and experimental results, the objective of this small project is to enhance the thrust per input Watt of my design.
AI-powered digital signal processing ( Anglais)Informatique - 10-02-2019
Machine learning is fantastic to apply complex mathematical operations without being specifically programmed like in conventional algorithms. In this article, I share two artificial neural networks experiments related to digital signal processing (DSP): discrete Fourier transforms and signal corruption recovery.
Homemade PCB manufacturing ( Anglais)Électronique - 21-10-2018
Homemade PCB manufacturing is a great way to get inexpensive board prototypes with no delay. In this article, I show the method I came up with to get reliable, fast and precise PCBs with no headaches using a 3D printer, a permanent marker and any etchant.
Interact PHP - comment system ( Anglais)Informatique - 17-08-2018
Interact is a simple PHP open-source comment system that can be added to any website in minutes to improve interactivity and user's involvement. Client-side, it is very lightweight (<6KB CSS and JS combined) and intuitive (no logins, no cookies,...). Server-side, it is very easy to setup, manage and even customize to fit your needs.
Getting started with RTL-SDR ( Anglais)Informatique - 24-07-2018
Software Defined Radio (SDR) is a radio communication system where components that have been traditionally implemented in hardware are instead implemented by means of software. RTL-SDR is an extremely inexpensive way to start exploring, demodulating, decoding... about anything you could thing of in the VHF and UFH radio range. This article is a quick start guide with RTL-SDR to begin capturing and decoding signal on GNU/Linux, and two simple example projects.
S3D Evolved - compact 3D printer ( Anglais)Électronique - 20-07-2018
S3D Evolved is an open source 3D printer that is both reliable, compact and inexpensive to build. Its 100x100x100mm build volume and robust frame means that it can be transported easily, while being sufficient for most of your prints.
Gimbaled Model Rocket Simulator ( Anglais)Informatique - 08-05-2018
Thrust vectoring is the ability of an aircraft, rocket, or other vehicle to manipulate the direction of the thrust from its motor in order to control the attitude of the vehicle. I started designing and building a model rocket with a gimbaled thrust system. Impulse is my open-source and cross-platform simulator for gimbaled thrust rockets that accurately simulates the rocket's physics.
ECE3SAT - Helmholtz Coils ( Anglais)Électronique - 11-02-2018
For my end-of-study project at ECE Paris, I worked on the ECE3SAT project, a student project developed at the french engineer school, ECE Paris. The goal of the project is to send a CubeSat in space to verify a physical theory permitting a fast deorbiting, to mitigate the exponential growth of space debris.
Micro Laser Machine ( Anglais)Électronique - 10-02-2018
This compact laser engraving CNC machine can burn on wood and most materials. It is upcycled with CD/DVD drives from old computers. It is a fairly easy machine to build and use, thanks to the open-source control software LaserGRBL.
3D Lidar Scanner ( Anglais)Électronique - 28-10-2017
As a 3-day project, I created this 360° lidar scanner using a Garmin™ LIDAR-Lite v3. With its data acquisition and visualisation code, this turret can generate a fairly accurate 3D point cloud that we can import in CAD software. The source-code and some design details are available in the article.
ElectroDB - Android app ( Anglais)Informatique - 14-10-2017
ElectroDB is a powerful, offline Android app I created for electronics enthousiasts like me. With its 12000+ (and growing) components database, you will find all the information you need to complete your electronic projects in less time. In this article, I showcase my app, and go into more technical details on the inner working.
Contrôle de prises DiO avec ArduinoÉlectronique - 01-08-2017
DiO est une gamme d'équipements de domotique radiocontrolés en 433MHz. Cet article détaille l'installation et l'utilisation d'une bibliothèque Arduino que j'ai développée pour pouvoir interagir très facilement avec ces modules.
Mon processeurÉlectronique - 18-04-2017
A la suite de mon apprentissage du langage de description hardware VHDL, j'ai développé mon architecture processeur en partant de zéro. Cet article retrace toutes les étapes de ce projet open-source.
My personal Website ( Anglais)Informatique - 08-01-2017
In this article, I will be describing some interesting technical choices I have made for the creation of my personal website (the website you are currently browsing). As it is a dynamic website that was built with several frameworks but no database for security reasons, there are several unsual choices that affects I will be describing.
Simply Appear ( Anglais)Informatique - 07-01-2017
Simply Appear is an extremely lightweight native Javascript and CSS framework to handle apparition animations. It is easy to implement and include basic animations. As it does not use jQuery, it is lightning fast and weights less than 2KB!
Website for ALC ( Anglais)Informatique - 05-01-2017
This project describes the technologies, framework and processes to design the new website of a French law practice situated in Orléans. It is a responsive, accessible, static, showcase website that I fully created from scratch.