Author Archive

Hello World Open 2014 coding competition

I read from Tietoviikko and Facebook today that the first computer programming championships is going to be held in Finland this spring. Hello World Open 2014 competition will be held this spring in Helsinki. The competition is hosted by two Finnish IT companies: technology company Reaktor and very successful mobile gaming company Supercell. The organizers want

Open files in Linux

lsof is a very useful Linux command, which can be used to report a list of all open files and the processes that opened them. lsof is very useful in debugging because files in the Linux/Unix system include disk files, named pipes, network sockets and devices opened by all processes. lsof name comes from “list

3.3V / 5V Power Module for Breadboard

Some time ago I wanted an easy way to power logic circuits on breadboard (both 5V and 3.3v circuit as needed). The product 121305 3.3V / 5V Power Module for Breadboard – Deep Blue seemed to fit the needs pretty well at few dollars (around $3.5). It takes 6.5~12V DC input voltage and outputs regulated

Finnish gaming industry is selling well

Finnish gaming industry is selling well. Not just games and related products, but also game companies. Finnish game companies Rovio and Supercell have been selling games very well for few years. The Fastest-Growing Game Company Ever, Supercell, was sold last year to GungHo And Softbank for $1.5 Billion. Rovio had just two years ago turned down

Friday fun: DVD delivery drone

Drones are a popular hacking topic. For many people they are serious on Drone DIY, but you can also make fun with them. Netflix mocks Amazon Prime Air with hilarious ‘Drone 2 Home’ video is a very fynny advertisement. It make bogus claims that Netflix has come up with a new DVD delivery service –

The Web is 25 years old today

World Wide Web turns 25 years old. World Wide Web turned 25 years today according to The browser’s resized future in a fragmented www world article. Wikipedia verifies that in March 1989 Tim Berners-Lee, a British computer scientist and former CERN employee, wrote a proposal for what would eventually become the World Wide Web. Twenty-five

Room Where The Internet Was Born

For something as ubiquitous as the internet today, it certainly isn’t easy to find where it all started. You might know History of Internet quite well in technical details, but what about the locations? Gizmodo article This Is The Room Where The Internet Was Born shows where the first ARPANET node was installed, where communications

Experimenting with SCADA for Arduino

Few days ago I wrote about SCADA for Arduino that allowed to build a nice computer user interface for controlling Arduino. This post is a continuation to that. In the earlier posting I got the LED on Arduino board to be controlled on/foo with SCADA software. Now I connected a relay module to this output

4K video technologies

In recent years, continued technological innovation in digital video has pushed the boundaries of “high-end” video resolution from 1080p (2K resolution) to 4K. 4K video has considerably higher number of pixels than HDTV has: 4K approximately four times the number of pixels compared to 1080p display. Today 4K the highest resolution format available for consumers.

Friday Fun: Scientists explain their processes

Scientists explain their processes with a little too much honesty and Scientists explain their processes with a little too much honesty [17 pictures] articles show a series of pictures that might find funny. Back in January, scientists started making “secret” confessions on Twitter and some some kind soul combined a few of these Tweets with