Some time ago I revised the hardware design of the ControlBlock and added test points for all major signals. The overall aim was to build a device for doing final system tests that are done before any single ControlBlock leaves for shipping. These system tests are written in Python. This post is about a Python module for the MCP23S17 to …Read More »
Welcome!This site is about various topics from the world of microelectronics, tinkering, software development, and other related topics. You can find our popular Raspberry Pi add-on boards ControlBlock and PowerBlock here as well as the GamepadBlock, our multi-platform USB interface for arcade and original game controllers.
This site is also the birth-place of RetroPie, the popular retro-gaming project for the Raspberry Pi. You can find articles about the original idea and articles of the first years of the project here.
Enjoy your stay on our sites!
RetroPie on Raspberry Pi 3? Get RetroPie 3.6!Read More »
We are pleased to announce the release of RetroPie 3.5.Read More »
Mostly fixes and improvements rather than new stuff this time folks.Read More »
Some weeks ago I wrote about my recent journeys into the world of web application development and the MEAN stack. While writing that blog post I realized that I would like to insert a certain UML diagram. So I first started to draw an UML diagram for a better explanation of the use cases that my learning project should implement. …Read More »
After rolling new images, fixing bugs, re-rolling we are finally there: RetroPie 3.3.Read More »
This info post is interesting for you, if you were looking at the ControlBlock and wondering when it will be available again.Read More »
Some time ago I had the idea for a web application related to another popular project. I quickly realized that my knowledge about web application architectures and designs was quite archaic. To learn the basics of modern web application programming I decided to implement an online assistant for writing letters based on the word-processor LaTex. It can be found at …Read More »
We have just published a bug-fix release, RetroPie image v.3.2.1, that fixes controller configuration issues for RetroArch-based emulators. For all of you that installed version 3.2 and are having trouble with the d-pad on the controllers: You can also fix that manually by editing /opt/retropie/configs/all/retroarch.cfg and removing the lines at the end That should fix the problem. All users who …Read More »
Soon after the release of RetroPie 3.1, we are please to announce v3.2. Although only a couple of weeks have passed, there have been a fair number of improvements. Changes since 3.1: Fixed binaries of mupen64plus and lr-tyrquake and removed mupen64plus-testing as it is now included in the default mupen64plus. Updated to Hatari 1.9, and built in IPF image support. …Read More »
We are pleased to announce the release of RetroPie 3.1! Among others, major features of this release are a more memory-light theme “Carbon”, an initial module for bluetooth keyboard support, and and new MAME emulators. Some EmulationStation tweaks and splashscreen improvements also made it into this release. Also, Berryboot images are provided now! Thanks a lot to everyone who has contributed …Read More »
After 6 months of hard work we are pleased to announce the release of RetroPie 3.0. This retro-gaming project brings together a collection of popular emulators for those computers and consoles that you grew up with from the 70’s, 80’s and 90’s, all wrapped up and ready to run on the famous Raspberry Pi. From Atari 2600, to Sega Mega …Read More »
The PowerBlock is an add-on board for the Raspberry Pi (version 1, 2, and 3) models A+ and B+. It provides a microcontroller-based power-switch functionality. This article describes the PowerBlock itself, as well as how to connect a power switch and how to install the driver.Read More »
With the announcement of the logo for the RetroPie project many people have asked for publishing all submissions to look at and give their opinions about them. So, here they are – all 84 submissions that we received. You will notice that the current iteration of the RetroPie Logo is additionally shown. Also, you have the possibility to vote for a single submission that best suits the RetroPie project in your opinion. …Read More »
First of all, let me say that we were overwhelmed by the number of logo proposals that the community has submitted. Thanks to all of you for your creative efforts! The logo contest ended a few weeks ago and we did not take the decision process for a winner easy. After several rounds of weighting pros and cons, discussions, having …Read More »