Blog

• 16. January 2018 Bulk File Copy and Rename (renameutils)

  Sometimes you need to copy or rename a bunch of files, either following some pattern or arbitrarily.

• 11. May 2017 A better OMX Player Controller

  I’m using omxplayer on the Raspberry Pi for video playback because it utilizes the Raspberry Pi’s hardware video decoding. Because the front-end is a separate application, I just need to remote control OMX Player to start and stop the video and figure out how far the video has played back already.

• 26. September 2016 Raspberry Pi Video Overlay on OMXPlayer via Kivy

  In one of my hobby projects I needed to display additional infomation on top of a running video. The whole project is based on the Raspberry Pi and Python.

• 19. October 2014 Maximizing in Yosemite

  Apple changed the behaviour of the small green button in the window controls from “Maximize” to “Fullscreen”.

• 11. October 2014 Swift Pitfalls

  I’ve started a couple experiments in iOS 8 development using Apple’s new language Swift and learned a few lessons that I want to share.

• 16. March 2014 Building Things with Raspberry Pi

  Over the weekend I helped a friend out developing a kiosk video player based on Raspberry Pi.
  We’re now using the following, with good success:

• 21. February 2014 Rover in Action

  I’m working at a software company. One of our side projects is the integration of new control concepts and input devices to robotic control.

• 28. November 2013 Raspberry Pi Pulling the Plug

  While browing for different breakout boards for the Rover I’ve discovered a nice little board that has a push button and logic pin to control a MOSFET.
  This little contraption allows switching on and off the power, say through a USB cable.
  Below is what I did to make the Raspberry Pi switch itself off completely on system shutdown.

• 26. November 2013 Using the Motor Controller

  The Raspberry Pi has only a single PWM output. The Dagu Rover 5 chassis has 4 motors and 4 optical encoders that need reading as well. So my approach was to get a PWM servo/logic controller that could control the Dagu Motor Controller and additionally some servos for the camera pan/tilt.

• 25. November 2013 New Web Site Skin

  I’ve updated the skin on the web site for something better looking.

• 21. November 2013 Building a Rover

  Recently I’ve started building a remote-controllable rover. The main purpose of this is the exercise of controlling an embedded system and make actual things move with code.

• 2. September 2011 The Awesome Space Muffins

  We participate as the Awesome Space Muffins. T-Shirt artwork by me :-) Idea by Eduardo.