About the project

The following project explains how I used a Raspberry Pi 4 to create a personal digital video recorder to record over-the-air tv.

Required Hardware

This project requires the following hardware:

• Raspberry Pi 4 (with the required parts)
  • 4GB of ram
  • A 16GB SD card
  • A micro HDMI cable
  • Monitor with HDMI input
  • A 15.3W USB-C Power Supply (3A @ 5v power supply)
  • Raspberry Pi 4 case. Preferably a passive cooling case for noise consideration.
    I used the Argon One case.
• An HDHomeRun Dual tuner from Silicondust. The oldest model will do. For this build, I used the HDHR3-US which dates back to 2012-2013.
• An over-the-air tv antenna for ATSC signals. For this build I use the Clearstream 4 antenna by Antennas Direct.
• 50ft to 100ft Coaxial Cable, 18AWG, 75 Ohm to connect the antenna to the HDHomeRun.
• External Solid State Drive (SSD) with about 500Gb in size.
• USB 3.0 to SATA Converter Adapter - Look for one that has UASP support.

Software list

This section defines the list of required software for the project. Follow the instructions in the next section to know when and how to install them.

Introduction

This post explains all the instructions required in order to get started with c++ no macOS 10.15 Catalina.

This article assumes that you already have access to a macOS image ISO file and that you already created a macOS virtual machine in VirtualBox.

Update macOS with latest security updates and bug fixes

Following macOS Catalina 10.15 installation, it is best practice to update the Operating System with the latest software & security update.

Introduction

This post is a follow up on command line arguments. I recently published a C++ library (libArgvCodec) which properly handles all encoding and decoding of command line arguments. It is much safer to use the library than simply wrap each argument with double quotes.

This post is about the list of rules that the library implements for encoding and decoding of arguments.

Using libArgvCodec library

The libArgvCodec library can be used for free and is released as Open Source. The code is available here. Feel free to download the library to use it in your own projects.

Introduction

This post is about a decade old problem: how to properly encode command line arguments. Properly encoding string arguments into a long command line should not be a complicated issue. However, I have seen multiple situations where people wrongfully assume that wrapping each argument with double quotes is ‘safe enough’ for most situations. That is simply not true.

This article is about the C++ library libArgvCodec which properly encodes and decodes command line parameters.

Introduction

The following article is about my new c++ library: libVariant. The library allows one to easily store/encapsulate a value of any c++ type into an instance of type Variant. The library is useful for declaring objects, interfaces, APIs or plugins to be type-independent.

Skip to the download section for quick download.

Purpose

The libVariant library allows one to create an instance of Variant class. The class is a type safe and value safe union between all known basic c++ types. An instance of a Variant class encapsulates a single value of any c++ type: signed and unsigned integers, floating points & strings.

Voici un autre modèle d’avion que j’ai assemblé: le planeur Radian Pro de ParkZone.

C’est un excellent appareil. Je le recommande fortement. Lorsque je le pilote, je dois m’apporter une chaise afin de m’asseoir parce qu’une fois que cet oiseau est dans les airs, il ne veut juste plus redescendre au sol. Il faut s’armer de patience.

Le tout présenté en time lapse.

Description

Le Radian Pro est un planeur de 78.5 pouces d’envergure. Le fuselage mesure 45 pouces. Il est motorisé ce qui veut dire qu’il n’a pas besoin d’être remorqué pour prendre son envol et qu’il peut par lui même reprendre de l’altitude lorsque nécessaire.

J’ai fait l’acquisition de mon premier quadrirotor. Puisque je préfère de loin les options DIY, j’ai décidé de ne pas acheter un modèle RTF (ready-to-fly) et de plutôt opter pour un modèle livré à la maison en pièce détachée.

Tous comme avec mon Avistar Elite, j’ai capturé le déballage et l’assemblage de l’engin sur photos afin de réaliser un vidéo time lapse.

Pour le plaisir de vos yeux, voici le vidéo démontrant le déballage et l’assemblage de mon premier quadrirotor.

Introduction

The following article is written in order to demonstrate how my arduino libraries libRtttl & AnyRtttl can be used to convert arduino code (tone() and delay() functions calls) into actual RTTTL melodies.

This article shows how to convert ‘Game of Throne theme’, ‘Star Wars - The imperial March’ and most Super Mario Bros. sound themes (Main theme, 1-up life sound, Flagpole fanfare, Death and Game Over sounds) into actual playable RTTTL melodies.

Introduction

À chaque fois que je travail en graphisme et que je dois ajouter du texte à une image, je me retrouve toujours avec le même problème: “Comment faire pour identifier rapidement la meilleure police pour mon affiche ?”

Je crois maintenant avoir finalement trouver la solution à ce problème.

Voici un script pour Microsoft Word qui permet de générer n’importe quelle exemple de texte avec toutes les polices de votre ordinateur.

Introduction

The reason I started this project is because I recently had a bad experience flying a quadcopter too far from me until I was not able to distinguish if the quad was facing me or not. It does not require much distance before a quadcopter looks like a tiny black dot in the sky. Basically, I lost orientation of the quad and I had to land way too far from my takeoff location.