Author Archives: e8johan

FreeRTOS 8.2.0 Released

Posted on January 17, 2015 by e8johan

Version 8.2.0 of FreeRTOS, the open source, embedded RTOS has been released. The changelog reveals all the details. Some of the details are: The new task notification feature, providing a fast, lightweight mechanism for inter-process exchange of limited data. Following … Continue reading →

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Emulator Preventing Tricks

Posted on January 16, 2015 by e8johan

One application of reverse engineering is the creation of emulators of old systems. This is often done to preserve the technology and to address the lack of access to functioning hardware. One such system is the Game Boy Advance. Produced between … Continue reading →

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Debug witout printf

Posted on January 14, 2015 by e8johan

The use of printf for debugging purposes is sometimes regarded as bad practice. However, sometimes even that is a luxury. Mark Seaborn has written a piece on this.

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KeySweeper – Sweeping away Microsoft keyboards

Posted on January 14, 2015 by e8johan

Samy Kamkar has an interesting post on the security implementation in the Microsoft wireless keyboard. Using some smart heuristics, the scanning period to find and get access to the key presses of a wireless Microsoft keyboard is only 40s. In … Continue reading →

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Reverser Engineering an IR Protocol

Posted on January 12, 2015 by e8johan

Reverse engineering is always an interesting technical challenge. Vincent and Mathieu from France used the AnalysIR equipment. This challenge was not only about understanding the protocols, but learning to generate checksums and how the various frames relate to each other. The … Continue reading →

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Quick and Dirty Charger

Posted on January 8, 2015 by e8johan

Here is a quick and dirty article telling you about a quick and dirty solar charger from jmp.no. It is a nice, simplistic hack to create a USB solar charger.

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Amazing Clock

Posted on January 6, 2015 by e8johan

Taking dead bug style electronics construction to new heights, The Clock project is a piece of art appreciable not only by engineers. The project is the creation of Gislain Benoit and took three years to design. He describes the project as … Continue reading →

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Apple Lisa Teardown

Posted on December 28, 2014 by e8johan

Any blog mixing retro computers and electronics deserves a visit, so go have a look at Dave tearing down an Apple Lisa at his EEVBlog.

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C64FC

Posted on December 26, 2014 by e8johan

Over at jmp.no, Stian Soreng recently announced the completion of the C64FC. It is the modern solution to C64 software development. By connecting to a development PC through USB and to the C64 via the cartridge port. As floppies become … Continue reading →

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Intel Edison

Posted on December 25, 2014 by e8johan

The Intel Edison module makes it easier to build an x86 embedded computer system. The module itself comes with a 500 MHz dual-thread Atom CPU core and a 100 MHz Intel Quark micro controller. The module also includes 4GB eMMC … Continue reading →

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