C sockets – A hello world introduction

While sockets are no new concept for me, I recently had to write an application in C that uses sockets to communicate. And while trying to figure out, what the best way of doing so is, I came across a lot of tutorials. But most of them either completely missed the point, were too complicated or used obsolete functions in the code. In this article, I want to try to give you a simple and short overview of sockets and an up to date ‘hello world’ example for a client and a server application. Continue reading C sockets – A hello world introduction

Advertisements

How to connect your Arduino to the Internet with the ENC28J60

I’m currently working at a custom messaging system, which will users to exchange encrypted messages. To achieve this I bought an ENC28J60 powered ethernet module, which can be used to connect an Arduino to the Internet (or any other microcontroller that supports SPI). In this short article, I want to show you how to connect this module and get it up and running in no time! Continue reading How to connect your Arduino to the Internet with the ENC28J60

PlayStation VR Test and Review

Due to the upcoming release of Skyrim VR this Friday (17th of November) I decided to get myself a PlayStation VR headset, which is the cheapest proper VR Headset currently available with prices starting at 350€ for just the Headset or 400€ for the starter kit which contains the Headset, two motion controllers and the PlayStation Camera. I wanted to share my experience with this system and tell you about some tips and tricks that I discovered during usage. Continue reading PlayStation VR Test and Review

Is it worth buying a NAS or cloud space?

Well is it? If you expect a very short answer from me, I’d say: absolutely, even if you just want to regularly back up your data, which is a very good idea. But in this article I want to take a look at some ready to buy consumer NAS devices, a cost-effective self-built and self-hosted one and some well-known cloud services and I want to compare how much they cost if you use them for one, five and ten years. This is not a product test and I won’t go into too much detail, I just want to sum up some options you have and when you should consider getting one or the other option and how much they will cost you. Continue reading Is it worth buying a NAS or cloud space?

Quick build: DIY bench power supply from an old computer’s PSU

I have taken apart several old computers this weekend and so I had several old PSU laying around afterwards. I opened one up that was known to be faulty, that’s why I got the computer for free. So I took a quick look inside and several caps were leaking. I decided not to throw it away, instead I repaired the PSU and gave the internals a new life. I actually had this idea years ago but I didn’t have a spare PSU I could take apart. Here is a rough guide on how to build your own power supply for almost no cost at all! Continue reading Quick build: DIY bench power supply from an old computer’s PSU

PCB production/etching tutorial

Introduction

There are a lot of tutorials around that show you, how to etch your own PCBs, but either they use professional tools, that might cost a lot, or they do not give you a complete list of materials you will need. This really bothers me, so I want to show you how to produce your own PCBs at home, so you can make your DIY projects more professional and cut costs drastically when it comes to create a PCB.

electrician-499799_1920
This might be you with your professionally crafted PCB

Continue reading PCB production/etching tutorial