A Radar Chart using MPAndroidChart
I’m using the MPAndroidChart library (3.0.0) to represent psychometric personality test results in a radar chart (AKA spider chart or cobweb chart). Since the documentation I found on this was e... Read More
Big Five Personality Traits Android App
The Big Five Android app is available for testing. You are invited to join here: https://play.google.com/apps/testing/de.nitri.bigfive This version of the Big Five personality traits model administers... Read More
Big Five Personality Test
I’m more or less skeptical about the use of personality tests. Nonetheless, it’s a nice little project for the weekend in nasty old PHP, modestly pimped on the front end with Material Desi... Read More
Reichswald app for Android
The new Reichswald app offers different walks through the Klever Reichswald. You can also have your own trips planned. Along the way the app helps you find a parking place or a glass of good beer, and... Read More
Plant Hero app for Android and iOS
Plant problems? Not enough growth? Insects? Our Plant Heroes brought by Hesi are here to help you for FREE in less than 24 hours: https://play.google.com/store/apps/details?id=com.sigrow.planthero... Read More
Nagios 4 on a Raspberry Pi
Introduction As a low power device the Raspberry Pi makes for a perfect network monitoring host. I’m running Nagios 4 on a Raspberry Pi 2 with a 5V/2A power supply. Fixed IP A fixed IP address i... Read More
Controlling the Pi Rover over SSH
Introduction We have seen how to control the Pi Rover over HTTP. However, you may find it a bit of an overkill to install a webserver bundled with PHP just to control the motors. A leaner alternative ... Read More
Packaging a libGDX project for Ubuntu
Introduction We have already seen how to create an installable .deb package. However, to make it Ubuntu we need a source package that actually builds on the Launchpad server farm. This is not hard, bu... Read More
New Launchpad PPA for this site
We have created a new Launchpad PPA for the Ubuntu software presented on this site. Details can be found here: https://launchpad.net/~helfrich . For now the repository only contains a rather silly gam... Read More
Controlling the Pi Rover over HTTP
Introduction Now that we have a programmable robotic platform, built with a Raspberry Pi, a motor controller and a chassis, we’d like to control it remotely, from a PC and later maybe from a mob... Read More