• ControlBlock

    Power Switch, Game Controllers, and I/O for the Raspberry Pi

  • PowerBlock

    A(nother) Power Switch for the Raspberry Pi

  • The RetroPie Project

    Welcome to the RetroPie Project. This page provides information about all the pieces of the projects, the goals and should give you an understanding of what the RetroPie Project is.

  • Owncloud on your Raspberry Pi

    Your own cloud server with Owncloud on the Raspberry Pi

Welcome to petRockBlock!

This site is about various topics from the world of microelectronics, tinkering, software development, and other related topics. If you are interested in tinkering projects with the Raspberry Pi you can also find our gadgets here.

Here, we also have presented the idea of a universal gaming machine that have led to the origins of the RetroPie Project, the popular retro-gaming project for the Raspberry Pi.

Enjoy your stay on our sites!

All Recent Posts

New Revision of the PowerBlock: Increased Flexibility

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The PowerBlock is a small support shield for the Raspberry Pi that provides a power switch functionality. Recently, we have updated the design of the PowerBlock such that it now offers an even greater flexibility regarding the connections with the Raspberry Pi.

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Python module for MCP23S17 for use with the Raspberry Pi

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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 …

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MEAN adventures continued: An UML Online Editor for PlantUML

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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. …

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Getting to know the MEAN stack with a LaTex Web Application

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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 …

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Issues with your d-pad? RetroPie Release 3.2.1 might help

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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 …

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RetroPie 3.2 is Released

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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. …

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RetroPie 3.1 Released

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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 …

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RetroPie 3.0 is Released

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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 …

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PowerBlock: A(nother) Power Switch for the Raspberry Pi

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The PowerBlock is an add-on board for the Raspberry Pi (version 1 and 2) 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. Functionalities The PowerBlock provides a power switch functionality. Why might this be of interest for …

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Take a Look at all Logo Submissions

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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. …

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