Skill Learning in Robots using Deep RL with Latent Variables
Recent contributions to the field of Reinforcement Learning (RL) have been concerned with the learning of skills, diverse behaviors of the agent that can be chosen by setting the values of latent variables which the policy is conditioned on. While some approaches omit the task reward during training, making it simply learn diverse behaviors, other…
Konfliktmanagement
Umgang mit Konflikten und schwierigen Situationen Konfliktmanagement ist ein Thema, dass mich schon etwas länger beschäftigt. Es kommt mir so vor, als würden viele Konflikte nicht in einer Form ausgetragen werden, die für dessen Lösung förderlich wäre. In Medien und im Internet findet man die stärksten Beispiele dafür. Hier sitzen sich die Konfliktparteien nicht einmal…
Mit KeePass einen synchronisierenden, kostenlosen Passwort-Manager einrichten
Bei wie vielen Webseiten sind Sie registriert? Verwenden Sie für jeden Dienst ein eigenes Passwort? Diese und andere Fragen zu Passwortsicherheit haben Sie sich sicher einmal stellen müssen und haben – vielleicht weil Sie unangenehme Technikfragen gerne umgehen – sich nie damit befasst. Das Bundesamt für Sicherheit in der Informationstechnik (BSI) empfielt in seinen Leitlinien…
Get the STM32F429 Discovery board running on Mac OSX
Quite a while ago I bought myself a stm32f4 discovery board, with the intention of putting my hands on 32-bit microcontroller programming. The chip on the board, the stm32f429, is a Cortex-M4 powerhouse with 2 Megabytes of flash and 256 kilobytes of RAM, as well as many peripherals and built-in dedicated logic to compute CRC…
Turning an old “brick” cellphone into a data transmitting device
I’ve never liked throwing away working electronics. The same counts for old cellphones. As I got my first smartphone a long time back, I kept my “brick” phone, thinking about doing something with it one day. This day came in May 2014, when I decided to revolve my next project around putting this old phone…
A mod to make a Nintendo DS play on its own
After playing lots of Pokémon and Age Of Empires in my early teenage years, my Nintendo DS has mostly been laying around in the closet serving no use. But with the advent of my modding/hacking passion, I’ve decided to tinker around with this relatively old console. So I soldered wires to all the buttons (while making…
The all-in-one Brushless DC Motor driver
About a year ago I went through my stash of salvaged electronic parts and came across boxes of motors from hard-drives I took apart. Now these aren’t normal motors with two leads that you just apply current to. These are motors with three or four leads that must be driven in a specific pattern. They…
The All Terrain Vehicle, a >30kg iron colossus
The All Terrain Vehicle (A.T.V.) is my biggest and most time-consuming project to date. In its building process I have learned welding, working with metals and plastics, as well as how to plan and build complex metal structures. Even more, I improved my skills in circuit board design, programming and circuit board etching. I started…